• More from M-W
  • To save this word, you'll need to log in. Log In

Definition of catamaran

Illustration of catamaran, examples of catamaran in a sentence.

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'catamaran.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Tamil kaṭṭumaram , from kaṭṭu to tie + maram tree, wood

1673, in the meaning defined above

Dictionary Entries Near catamaran

Cite this entry.

“Catamaran.” Merriam-Webster.com Dictionary , Merriam-Webster, https://www.merriam-webster.com/dictionary/catamaran. Accessed 28 Sep. 2024.

Kids Definition

Kids definition of catamaran, more from merriam-webster on catamaran.

Thesaurus: All synonyms and antonyms for catamaran

Nglish: Translation of catamaran for Spanish Speakers

Britannica.com: Encyclopedia article about catamaran

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Play Quordle: Guess all four words in a limited number of tries.  Each of your guesses must be a real 5-letter word.

Can you solve 4 words at once?

Word of the day.

See Definitions and Examples »

Get Word of the Day daily email!

Popular in Grammar & Usage

Plural and possessive names: a guide, every letter is silent, sometimes: a-z list of examples, the difference between 'i.e.' and 'e.g.', more commonly misspelled words, absent letters that are heard anyway, popular in wordplay, weird words for autumn time, 10 words from taylor swift songs (merriam's version), 9 superb owl words, 15 words that used to mean something different, 10 words for lesser-known games and sports, games & quizzes.

Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.

Catamarans: A Complete Guide to Multihull Boats

Catamarans have been a part of sailing history for centuries and continue to be popular for their stability, spaciousness, and performance. Developed by various cultures around the world, the principles of catamaran design have evolved over time to become optimized for both pleasure cruising and racing. This complete guide will help you understand the essentials of catamarans, their unique characteristics, and how to choose the right one for your needs.

catamaran boat definition

From the basic concepts of multihull design, performance, and handling, we will explore the advantages and benefits of a catamaran in terms of safety and comfort on board.

Along the way, we will discuss maintenance considerations, distinctive catamaran brands and models, and how a catamaran lifestyle can compare to more traditional sailing options .

Finally, we will provide learning resources and frequently asked questions tailored to both seasoned sailors and newcomers to the world of catamarans.

Key Takeaways

  • Catamarans are known for their stability, spaciousness, and performance
  • This guide covers aspects like design, handling, safety, and choosing the right catamaran
  • Resources and frequently asked questions provide additional insights for potential catamaran owners

Understanding Catamarans

Design Characteristics

Catamarans are known for their unique design, which features two parallel hulls connected by a deck. This design provides several advantages over traditional monohull boats, such as stability and speed.

With their wide beam, catamarans have a reduced risk of capsizing and can access shallow waters due to their shallow drafts 1 .

One of the notable aspects of a catamaran is its twin hulls, which offer increased living space and comfort compared to a monohull. Additionally, catamarans are often favored by recreational and competitive sailors for their excellent maneuverability 2 .

The materials used for constructing catamarans range from wood to fiberglass, and even aluminum for high-performance vessels. Aluminum catamarans are known for their strength, lightweight structure, and resistance to corrosion 3 .

catamaran boat definition

Hulls and Construction

The hulls in a catamaran are crucial to its stability and performance. These hulls help distribute the weight evenly across the water surface, minimizing drag and allowing for smoother sailing.

In general, the hulls can be categorized into two types:

  • Symmetrical Hulls : The hull shape is similar on both sides, which enhances balance and stability in various sailing conditions.
  • Asymmetrical Hulls : One side of the hull is designed differently than the other, which can be advantageous when sailing upwind.

The construction materials used in building catamaran hulls also play a vital role in the boat's performance and durability. Common materials include:

  • Fiberglass : A popular choice due to its lightweight, strength, and ease of maintenance.
  • Wood : Traditional material that offers a classic look, but requires more maintenance than fiberglass or aluminum.
  • Aluminum : Lightweight and strong, aluminum is an excellent choice for high-performance catamarans 4 .

catamaran boat definition

Multihulls vs Monohulls

There's often a debate between the benefits of multihull boats, such as catamarans or trimarans, and monohull boats. Here are some key differences between the two:

  • Stability : Due to their wide beam and reduced heeling, catamarans offer improved stability compared to monohulls. This makes them an attractive option for those who want to avoid seasickness or feel more comfortable on the water 5 .
  • Speed : Multihull boats are known for their speed, which results from their ability to minimize drag and maintain a level sail.
  • Living Space : Catamarans and other multihulls generally have more living space, as both the hulls and the connecting deck can be utilized for accommodation and storage.
  • Maneuverability : While monohulls are known for their agility and ability to point close to the wind, catamarans can still offer exceptional maneuverability when properly sailed 6 .

Performance and Handling

Speed and Efficiency

Power catamarans have gained popularity for offering a unique combination of speed, efficiency, and stability. Their dual-hull design allows for less water resistance, which directly translates to higher speeds and better fuel efficiency compared to traditional monohull boats.

In addition, the wide beam provided by the two hulls ensures a stable ride even at higher speeds. This makes power catamarans ideal for cruising, fishing, and watersports ( Boating Beast ).

Sailing Dynamics

When it comes to sailing catamarans , the performance is affected by factors such as keel, rudders, mast, and sails.

Their wide beam and dual-hull design provide inherent stability and reduced heeling effect, making them less likely to capsize compared to monohulls.

I should also note that catamarans have a shallow draft, which gives them the ability to access shallow waters that may be off-limits to other boats ( Navigating the Waters ).

In my experience, the lighter weight of a catamaran and its aerodynamic design can contribute to remarkable sailing performance under different wind conditions.

The larger sail area relative to hull weight allows them to harness more wind power, further enhancing their speed and agility on the water.

Maneuvering and Docking

Maneuvering and docking a power catamaran involves understanding its unique handling characteristics.

The presence of two engines in separate hulls allows for more precise control in confined spaces such as marinas.

The maneuverability of these boats is typically improved by the use of dual rudders that are located close to each powered hull for efficient steering ( BoatUS ).

When docking under power, I find it helpful to carefully assess the wind and current conditions beforehand.

This is because catamarans can be more sensitive to windage due to their larger surface area above the waterline.

By understanding how these forces may affect the boat, I can make adjustments to my approach and successfully dock the catamaran without any incidents.

Safety and Comfort on Board

Safety Features

Safety is a top priority when sailing any type of vessel, including catamarans. A well-built catamaran offers several features aimed at ensuring the safety of those onboard.

First, catamarans have inherent stability due to their wide beam and twin hull design . This makes them less prone to capsizing than monohull boats. This stability allows me to confidently navigate various water conditions .

In addition to stability, catamarans are designed with positive buoyancy, making them almost unsinkable . Of course, safety equipment such as lifejackets, flares, and first aid kits should always be onboard and well-maintained.

Furthermore, you should also stay updated on weather conditions, avoid sailing in high-risk areas, and learn your boat's safe sail limits.

Living Spaces and Comfort

When it comes to living spaces, I value comfort and practicality as essential features for my time on the water. Catamarans offer a unique advantage in this regard, as their dual hulls create spacious living areas.

Most catamarans are designed with separate cabins in each hull, allowing for privacy and comfort when sleeping. Additionally, these boats typically feature shallow drafts , which means I can access shallow waters and anchor close to shore.

The main living area, or salon, is situated on the bridge deck between the hulls. It usually includes a seating area, a dining table, and a galley (kitchen). Large windows provide ample natural light and panoramic views, making the space feel open and bright. Some catamarans even have the option for an additional living area on the upper deck where you can enjoy the sun and breeze.

One aspect of catamaran living I truly appreciate is the ample storage available. Each cabin typically has built-in storage spaces for clothes, gear, and personal items. There are also designated areas for equipment such as spare sails, tools, and water toys. This makes it easy for me to keep my belongings organized and make the most of my time on the water.

Maintaining a Catamaran

Routine Maintenance

In order to keep my catamaran in the best possible shape, I make sure to perform routine maintenance tasks. These tasks are essential to extend the life of the components and ensure smooth sailing:

  • Cleaning : Regularly cleaning the deck, hulls, and sails prevents buildup of dirt, algae, and other debris that could affect performance.
  • Inspection : Periodically inspecting my catamaran allows me to detect any potential issues before they become significant problems. I pay close attention to the rigging, sails, and lines on my boat.
  • Lubrication : Keeping all moving parts lubricated is vital to prevent friction and wear on components such as winches and pulleys.
  • Antifouling : Applying antifouling paint to the hulls of my catamaran helps prevent the growth of marine organisms that can damage the boat and reduce its speed. Make sure to do this at least once a year.

Dealing with Wear and Tear

Despite my best efforts to keep my catamaran well-maintained, wear and tear is inevitable. Here's how I deal with common issues that could arise from regular use:

  • Repairs : When I notice signs of wear on sails, lines, or rigging components, I make it a priority to repair or replace them promptly. Neglecting these issues can lead to more significant problems and affect the boat's performance.
  • Hull maintenance : If I find dents, scratches, or stiff rudders on my catamaran's hulls, I address them immediately. Repairing any damage not only ensures smooth sailing but also prevents further issues from developing.
  • Sail care : Over time, my sails can become stretched, torn, or damaged due to exposure to sun, wind, and saltwater. Regularly inspecting them for signs of wear and making any necessary repairs or replacements helps maintain optimal performance.
  • Rust and corrosion prevention : Since my catamaran is made of various metal components, I need to protect them from rust and corrosion. I routinely check for signs of corrosion and apply anti-corrosive treatments when needed.

Catamaran Brands and Models

High-Performance Models

In recent years, there has been a growing interest in high-performance catamarans. I have seen a variety of brands and models that have impressed me with their performance capabilities. One notable brand is Fountaine Pajot , which has a long history of producing a range of sailing catamarans and power catamarans. Some of their popular models include the Tanna 47 and the Bali 4.4 .

Another high-performance catamaran I've come across is the Leopard 40 . Known for their speed and exceptional handling in various conditions, the Leopard brand started with sailing catamarans and has since expanded to include power catamarans. Their models range from 40 to 53 feet long, offering both power and luxury for those looking for a thrilling experience on the water.

Cruising Catamarans

When it comes to cruising catamarans, the Lagoon brand is synonymous with luxury and comfort. With a range of sailing catamarans from 40 to 70 feet long, Lagoon offers spacious catamarans for extended bluewater cruising. Their 60- and 70-foot power catamarans are equally impressive, providing ample living space and smooth sailing experiences.

I've also found the Aquila 42 PC to be a remarkable cruising catamaran. With a focus on design and innovation, Aquila has produced catamarans perfect for exploring the open sea with friends and family. Their spacious, stable designs allow for a more enjoyable and serene journey, ensuring you arrive at your destination comfortably.

The Catamaran Lifestyle

Anchoring and Cruising

I find catamarans to be a fantastic choice for cruising and anchoring , which is a critical part of living the catamaran lifestyle . Catamarans have several advantages when it comes to anchoring and cruising, such as:

  • Stability : Due to their wide beam and twin hulls, catamarans remain stable during anchoring, which reduces the risk of seasickness.
  • Shallow draft : Thanks to their shallow draft , catamarans can anchor close to shore, enabling better access to protected coves and more beautiful beaches.
  • Speed : Despite their large size for cruising vessels , catamarans are generally faster than monohulls. This is a result of their slim hulls and reduced water resistance.

When it comes to anchoring, catamarans can make use of their shallow draft to anchor in locations that other boats cannot. This allows for a greater range of cruising spots, which makes the overall experience much more enjoyable and unique.

Living on a Catamaran Full-time

For many catamaran enthusiasts, the dream of living full-time on a catamaran is entirely possible. While not without challenges, there are several factors that make living aboard a catamaran an enjoyable experience:

  • Spacious living areas : Catamarans generally have more living area compared to monohulls, providing ample space for the whole crew.
  • Privacy : The separate hulls allow for private cabins, ensuring that everyone on board has their space.
  • Stability : As mentioned earlier, catamarans are stable vessels, making living on them more comfortable than monohulls.

Choosing Your Catamaran

Comparing Models and Features

When I start to look for the perfect catamaran, the first thing I focus on is comparing various models and features .

I determine the key factors that are essential for my needs, such as size, passenger comfort, and performance. By doing so, I can identify which catamaran models are most suitable for me.

For example, if I plan to sail with a large group, I would look for a catamaran that offers ample space both inside and out.

To help me with my comparisons, I usually create a table or list of the different models and their features:

ModelSizeComfortPerformance
A40ftSpaciousHigh
B35ftAverageAverage
C45ftLuxuryHigh

This visual aid makes it easier for me to sort the options and prioritize my considerations, such as price, yacht type, and brand.

New vs. Second-Hand

Another critical aspect of choosing a catamaran is deciding between a new or second-hand boat.

Both options have their pros and cons, and ultimately it depends on my preferences and budget.

If I can afford a new catamaran, I get the advantage of the latest design , features, and technology. Plus, I typically receive better warranty coverage and support from the manufacturer.

However, new catamarans are more expensive and can have long wait times due to high demand.

On the other hand, purchasing a second-hand catamaran can save me a significant amount of money, and I might find a high-quality boat with low mileage or well-maintained by the previous owner.

However, this option carries more risks, as I need to be knowledgeable about potential maintenance issues and conduct a thorough inspection before purchase.

Learning Resources

Books and Manuals

When it comes to learning about catamarans, there are plenty of books and manuals available.

One of the highly recommended books is Multihull Voyaging by Thomas Firth Jones. This book provides a comprehensive understanding of multihulls, including catamarans, and is an essential guide for any beginner sailor.

Another great book to check out is Catamarans: The Complete Guide for Cruising Sailors by Gregor Tarjan.

With a foreword by Charles K. Chiodi, publisher of Multihulls Magazine, this book covers all aspects of cruising catamarans. It includes detailed information on design, construction, and maintenance, as well as tips and tricks for sailing a catamaran.

Here are a few more books that I find valuable:

  • The Catamaran Book by Tim Bartlett, an excellent resource for both beginners and experienced sailors
  • Catamaran Sailing: From Start to Finish by Phil Berman and Lenny Rudow, a comprehensive guide to both catamaran racing and cruising

Online Content and Photography

In addition to books, you can find plenty of online content and photography about catamarans.

Websites like Sailaway Blog and Boating Guide offer tips, techniques, and how-to articles for sailing catamarans.

Many of these sites also include stunning photography, showcasing these beautiful vessels in action.

For those who prefer Kindle or e-books, many of these resources are available in digital format.

This makes it easier for you to access them anytime, anywhere, allowing you to keep learning and improving your catamaran sailing skills.

To further enhance your knowledge, you can also join online forums and communities dedicated to catamarans.

These platforms provide invaluable advice and first-hand experiences shared by fellow sailors, as well as recommendations for additional learning resources.

Frequently Asked Questions

What factors should be considered when choosing a catamaran for full-time living?

When choosing a catamaran for full-time living, consider its space and layout , as it will become your home.

Look for a design with a comfortable living area , ample storage, and sufficient berths for the number of people living aboard.

Also, consider fuel efficiency , ease of maintenance, and the catamaran's cruising range .

Lastly, the overall cost of ownership , including insurance and mooring fees, should be considered.

How do catamarans perform in rough sea conditions?

In general, catamarans are known for their stability, which is primarily due to their wide beams. This makes them less prone to capsizing when compared to monohulls.

However, their performance in rough sea conditions will depend on the specific model and design of the catamaran. Some may perform better in certain conditions than others, so researching and selecting the right design is essential.

What are the key differences between sailing a catamaran and a monohull?

One of the main differences between catamarans and monohulls is stability.

Catamarans have a wider beam , which makes them more stable and minimizes the risk of capsizing.

They also have shallower drafts, which allow them to access more shallow waters compared to monohulls.

Additionally, catamarans often have larger living spaces, making them more comfortable and suitable for cruising and full-time living.

What are the advantages of catamarans for long-distance cruising?

Catamarans offer several advantages for long-distance cruising.

Their wide, stable design provides a comfortable ride and reduces the risk of seasickness.

They can also attain higher speeds due to their reduced drag and generally sail faster than monohulls on certain points of sail.

The shallow draft allows them to explore more coastal areas and anchor closer to shore. Lastly, their spacious interiors make them ideal for extended cruises and living aboard.

How does one assess the value of a used catamaran on the market?

Assessing the value of a used catamaran requires thorough research and inspection.

Start by comparing the age, model, and condition of the catamaran to similar listings on the market.

Take note of any upgrades or additions made to the boat, as these can affect the price.

It's essential to inspect the boat in person or hire a professional surveyor to ensure there are no hidden issues that could affect its value.

What essential features should be looked for in a catamaran intended for ocean voyages?

For ocean voyages, look for a catamaran with a strong, well-built hull designed to handle rough conditions.

Safety features such as liferafts, adequate flotation, and sturdy deck hardware are crucial.

A reliable engine and well-maintained rigging and sails are also essential.

In terms of living space, opt for a catamaran with a comfortable, spacious interior and ample storage.

Last but not least, good navigation and communication systems are necessary for long-distance ocean voyages.

catamaran boat definition

Related Articles

Sebastian Inlet Webcam: Live Beach Views and Surf Conditions

Sebastian Inlet Webcam: Live Beach Views and Surf Conditions

Dinner Cruise Sarasota: A Memorable Evening Experience

Dinner Cruise Sarasota: A Memorable Evening Experience

Starlink for Boats Ultimate Guide: Seamless Connectivity on the High Seas

Starlink for Boats Ultimate Guide: Seamless Connectivity on the High Seas

Boat Slip: Essential Features for Safe Docking

Boat Slip: Essential Features for Safe Docking

Prodigy Boats: Unveiling the Innovation in Marine Craft Design

Prodigy Boats: Unveiling the Innovation in Marine Craft Design

The Primary Cause of Many Boating Accidents is Human Error: Insights and Prevention

The Primary Cause of Many Boating Accidents is Human Error: Insights and Prevention

Best Boat Shoes: A Comprehensive Guide for 2023

Best Boat Shoes: A Comprehensive Guide for 2023

Bonafide Kayak: Unrivaled Stability and Performance on the Water

Bonafide Kayak: Unrivaled Stability and Performance on the Water

What Is A Catamaran Sailboat? (And What It Looks Like)

What Is A Catamaran Boat? (And What It Looks Like) | Life of Sailing

Catamarans are increasingly popular for sailing and commercial use, but what sets them apart from monohulls and other multihulls?

A catamaran is a twin-hull boat with two equally-sized hulls placed side by side. They’re powered by engines, sails, or both—and they’re known for efficiency and speed. Catamarans are the most common kind of multihull boat.

In this article, we’ll go over the characteristics of catamarans and how to differentiate them from other types of boats. Additionally, we’ll cover the advantages and disadvantages of catamarans and compare them to trimarans and monohulls. We’ll also go over the most common types of catamarans and their uses.

We sourced the information in this article from marine design guides, boat identification resources, and the online boating community.

Table of contents

‍ How to Spot a Catamaran

Spotting a catamaran is easy. Simply look at the hulls and count them. Catamarans have two hulls side by side and a relatively large gap between them where you can see light on the other end. Catamarans are distinct from trimarans, which have an additional hull between the two outer hulls.

How do Catamarans Work?

The principle behind the catamaran is simple. You can think of catamarans like cars and monohulls like motorcycles. Catamarans distribute their weight between hulls on either side, whereas monohulls utilize only one hull.

Evidently, cars are much more difficult to tip over and can hold much more weight. Additionally, cars are wider, as they have much more contact with the road. Catamarans work in a similar way, as they have a wide stance and contact with the surface on both sides.

Obviously, that isn’t the most precise comparison. But the basic principle is the same, and catamarans have a few notable benefits over monohulls.

Catamaran Vs Monohull

Catamarans are easy to distinguish from monohulls. A monohull is just a regular old boat with a single hull. The vast majority of boats and ships are monohulls. Catamarans have two hulls, which are usually sleek and narrow.

Here are some comparisons of catamarans and monohulls, along with the advantages twin-hull designs have over most single hull types.

Benefits of Catamarans

Catamarans have numerous benefits. The first is speed. Catamarans produce less drag than monohulls and thus can achieve excessive speeds both under sail and power. They don’t need to plane like monohulls to achieve these high speeds, and they use less fuel.

Catamarans are also much more stable than monohulls. They have a wide stance and shallow draft, and many waves and swells can travel between the hulls instead of below them. This effectively reduces an entire axis of movement and prevents catamarans from rolling excessively.

Drawbacks of Catamarans

Catamarans aren’t advantageous in every way, or else we wouldn’t bother building monohulls. The disadvantages of catamarans limit their use to niche commercial applications and high-end yachts. But what are the drawbacks of a twin-hull design?

Sailing catamarans don’t follow many of the traditional boat handling rules and characteristics that sailors pass down for generations. Some, such as hull speed limitations, are good to do away with—while others, such as responsiveness, are not.

Catamarans aren’t as quick to the helm or responsive as monohulls. There are some exceptions to this rule, but for the most part, you’ll get a lot more feedback from a single-hull vessel. Additionally, the large section of deck between the hulls of a catamaran is prone to pounding in rough seas, which is loud and uncomfortable.

Catamarans can sometimes be twice the width of an equivalent monohull sailboat, which can increase mooring fees and limit docking options.

The final major drawback of catamarans is a consequence of their stability. Traditional full-keel monohull sailboats have a very low center of gravity, which makes them roll in heavy seas but ensures a recovery.

Catamarans have a higher center of gravity, and they can’t right themselves after a knockdown. And though catamarans are less likely to roll, a severe list on a multihull is a much more serious concern than on a ballasted monohull.

Catamaran Vs Trimaran

Catamarans and trimarans are often lumped together, but they have very different design and performance specifications. Trimarans have three hulls, whereas catamarans have two.

Trimarans look a lot like catamarans from the side, but a quick glance at the bow or stern can set them apart. Trimarans are faster than catamarans, as they distribute their weight across three hulls instead of two. This helps them stay centered and reduces interference from pitching and rolling.

Catamarans are fast, but they lose out to trimarans when going head to head. However, catamarans are much less expensive to build and maintain and often have roomier cabins due to their larger hulls.

Types of Catamarans

There are numerous types of catamarans, and their uses vary widely. The catamaran is one of the oldest and most useful hull types, and some variants have been used for thousands of years. Here are the most common kinds of catamaran boats and their uses.

Sailing Catamaran

Sailing catamarans are probably what you think of when you hear the name. Sailing catamarans are sailboats with two identical hulls connected by a center deck. The largest sailing catamarans are spacious and stable vessels that are capable of serious offshore sailing.

Sailing catamarans have a number of notable advantages over monohulls. Monohulls, which are traditional sailboats with a single hull, are limited by a simple concept called hull speed. As the bow and stern wave of a monohull intersect, they cause drag which limits the top speed of the boat.

Catamarans are not bound by hull speed limitations, as they have two hulls. Catamarans can go twice or even three times as fast as similar monohulls and achieve excellent travel times.

Catamarans are also more stable than monohulls, as their wide stance and shallow draft reduce the effect of rough water. They don’t heel, as the force of the wind is counteracted by the double hulls. Additionally, modern sailing catamarans can ‘wave pierce’ by cutting through swells instead of riding over them.

Sailing catamarans come in many shapes and sizes. Small sailing catamarans, such as those used in races and regattas, are known for their speed and relative stability compared to light racing monohulls. Sometimes, they feature a smaller second hull for stability—these are called outriggers.

Sailing catamarans have spacious interiors thanks to the large cockpit between the hulls. This cockpit usually contains cooking and eating spaces, a place to sit, and a hallway between the hulls. The hulls usually contain living quarters and often mirror each other.

Power Catamarans

Power catamarans have an even greater variety than sailing catamarans. These vessels are used for everything from party platforms to ferries and patrol boats.

Power catamarans are a recent development, as engineers and marine architects now realize they have numerous hydrodynamic advantages over other hull types.

Catamarans are much more efficient than other hull types, as they have less drag relative to their size. Additionally, you can build a much larger catamaran with less material. This makes them popular for car and rail ferries, as builders can construct a very wide vessel with two small hulls rather than a narrower vessel with a large single hull.

Military and Commercial Catamarans

Even the military has found a use for the catamaran hull shape. The Spearhead class EPF is an expeditionary fast transport vessel designed for carrying capacity and speed. It has two sharp hulls and a huge cargo capacity.

The Spearhead class EPF is 337 feet long, which is about the same length as a WW2 escort destroyer. Yet despite having a similar length and displacement, these catamarans can travel more than twice as fast—43 knots, or nearly 50 miles per hour. Their great speed is a direct consequence of their catamaran hull type.

Power catamarans are also used as patrol and utility boats on a much smaller scale, with either outboard or inboard motors. The State of Texas uses catamarans to patrol shallow rivers and lakes. Texas Game Wardens utilize state-of-the-art aluminum catamaran patrol boats, which are fast enough to outrun most fishing boats.

There’s another form of power catamaran that you may not have considered. Pontoon boats are technically catamarans, and they’re enormously popular on lakes and rivers throughout the country. Pontoon boats aren’t known for speed, but they’re a great platform for a fun and comfortable outing.

Catamaran Houseboats

The final common type of power catamaran is the two-hulled houseboat. Houseboats don’t always use the catamaran hull type, but it’s common enough that most major manufacturers offer it as an option.

Catamaran houseboats have a few notable advantages over monohull designs. For one, they’re easier to build—especially when pontoons are chosen. Additionally, they’re better suited for navigating shallow water. These vessels can support more weight across their two hulls, offer increased stability, and they’re also efficient.

Why Aren’t Catamarans More Common?

With all the advantages listed in this article to consider, it may seem strange that the use of catamarans is still somewhat limited. At the end of the day, it comes down to economics—as monohull boats and ships are simply cheaper to build.

Additionally, catamarans have some distinct limitations. Monohulls have lots of storage space in their hulls and can carry thousands of tons of cargo safely in all weather conditions. Catamarans lack this space and low center of gravity, so they’re not ideal for transporting cargo past a certain point.

Additionally, monohulls work, and many people are reluctant to experiment with new designs when old designs work just fine. This rule applies to both large and small boats.

A large monohull sailboat can be constructed at low cost from stock plans and reliably sail almost anywhere. Very little complex structural engineering is involved, and looser tolerances reduce cost and maintenance requirements.

Related Articles

Daniel Wade

I've personally had thousands of questions about sailing and sailboats over the years. As I learn and experience sailing, and the community, I share the answers that work and make sense to me, here on Life of Sailing.

by this author

Learn About Sailboats

Most Recent

What Does "Sailing By The Lee" Mean? | Life of Sailing

What Does "Sailing By The Lee" Mean?

October 3, 2023

The Best Sailing Schools And Programs: Reviews & Ratings | Life of Sailing

The Best Sailing Schools And Programs: Reviews & Ratings

September 26, 2023

Important Legal Info

Lifeofsailing.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon. This site also participates in other affiliate programs and is compensated for referring traffic and business to these companies.

Similar Posts

Affordable Sailboats You Can Build at Home | Life of Sailing

Affordable Sailboats You Can Build at Home

September 24, 2024

Best Small Sailboat Ornaments | Life of Sailing

Best Small Sailboat Ornaments

September 12, 2023

Discover the Magic of Hydrofoil Sailboats | Life of Sailing

Discover the Magic of Hydrofoil Sailboats

December 11, 2023

Popular Posts

Best Liveaboard Catamaran Sailboats | Life of Sailing

Best Liveaboard Catamaran Sailboats

December 28, 2023

Can a Novice Sail Around the World? | Life of Sailing

Can a Novice Sail Around the World?

Elizabeth O'Malley

June 15, 2022

Best Electric Outboard Motors | Life of Sailing

4 Best Electric Outboard Motors

How Long Did It Take The Vikings To Sail To England? | Life of Sailing

How Long Did It Take The Vikings To Sail To England?

10 Best Sailboat Brands | Life of Sailing

10 Best Sailboat Brands (And Why)

December 20, 2023

7 Best Places To Liveaboard A Sailboat | Life of Sailing

7 Best Places To Liveaboard A Sailboat

Boat Pursuits Logo

What Is A Catamaran Boat? (A Comprehensive Guide)

catamaran boat definition

Are you looking for a smooth, stable, and spacious boat? Then a catamaran boat may just be the perfect choice for you! Catamaran boats are becoming increasingly popular for their impressive stability, roomy design, and superior performance.

In this comprehensive guide, we will provide you with all the facts you need to know about catamaran boats , from the different types available to the advantages and disadvantages, as well as important information about maintenance and care.

By the end, you will be able to make a well-informed decision about whether a catamaran boat is right for you.

So, let’s dive right in and explore the world of catamaran boats!.

Table of Contents

Short Answer

A catamaran boat is a type of vessel with two parallel hulls of equal size.

It is typically used for leisure, sport and racing.

Catamarans are known for their stability and speed in a variety of water conditions.

They are also known for their shallow draft, making them a great choice for cruising in shallow waters.

What is a Catamaran Boat?

A catamaran boat is a type of vessel that is characterized by two parallel hulls.

This unique design provides the boat with exceptional stability and ease of maneuvering.

As a result, catamarans are becoming increasingly popular for leisure and commercial purposes due to their comfort and safety.

The design of a catamaran boat allows it to be much larger and heavier than traditional monohull boats, yet still maintain a higher speed and efficiency.

This makes catamarans an ideal choice for a wide range of activities, including sailing, fishing, and water sports.

Additionally, the two hulls can be configured to provide living spaces that are much larger than those found in monohull boats, making them an ideal option for long-term voyages and other extended trips.

Due to their stability and maneuverability, catamarans have become a popular choice for a variety of commercial purposes, such as ferry services, as well as for recreational activities.

As such, they are available in a wide range of sizes and configurations, from small models designed for sport and recreation to larger vessels designed for commercial use.

No matter what type of activity youre looking to do, a catamaran boat can provide you with the stability and comfort you need to enjoy a safe and enjoyable experience.

With its unique design, a catamaran boat can provide you with an efficient and enjoyable way to explore the seas and waters around you.

Types of Catamaran Boats

catamaran boat definition

Catamaran boats come in a variety of sizes, shapes, and styles, making them a great option for a variety of recreational and commercial activities.

There are two main types of catamaran boats: sailing and power catamarans.

Sailing catamarans typically feature two or more hulls connected by a frame and are propelled by the wind in the sails.

These boats are ideal for sailing, fishing, and other leisure activities, and they provide increased stability, speed, and efficiency compared to traditional monohull boats.

Power catamarans, on the other hand, are powered by motors and are designed for speed and efficiency.

These boats are often used for commercial activities such as ferrying passengers and cargo, as well as for leisure activities such as fishing and water sports.

Some power catamarans feature specialized designs for specific purposes, such as dive boats or luxury yacht charters.

No matter what type of catamaran you choose, its important to make sure that it is properly outfitted for your intended activity.

For sailing catamarans, this means checking the sails and rigging for wear and tear, and for power catamarans, making sure that all of the mechanical components are in good working order.

Safety is also a key consideration when choosing a catamaran.

Make sure to check and follow all applicable safety regulations and equipment requirements.

Additionally, its important to make sure that the boat is properly insured and that all of the necessary safety equipment is on board.

By doing your research and making sure that the catamaran you choose is the right one for your intended use, you can ensure that your time on the water is enjoyable and safe.

Advantages of Catamaran Boats

Catamaran boats offer a range of advantages over traditional monohull boats.

For starters, they are much more stable than their monohull counterparts.

This is due to the two separate hulls that provide balance and stability, even in rough water conditions.

This makes them ideal for activities such as sailing, fishing, or water sports.

Additionally, catamarans are much faster and more efficient than monohull boats, which makes them perfect for long-distance sailing trips.

Catamarans also provide more space than traditional vessels.

This is due to the two hulls, which allow for larger decks, cabins, and other amenities.

This makes them ideal for larger groups of passengers and more activities.

They are also much more comfortable than monohulls, as the two hulls provide more cushioning and less rocking.

Finally, catamarans are becoming increasingly popular for both leisure and commercial purposes.

This is due to the fact that they are much more stable, efficient, and comfortable than monohulls.

They are also much more affordable than traditional vessels, making them an attractive option for both recreational and commercial boaters.

With all these advantages, its no wonder why catamarans are becoming increasingly popular.

Disadvantages of Catamaran Boats

catamaran boat definition

Catamaran boats are an excellent choice for recreational and commercial use, but there are some disadvantages that must be taken into consideration.

First, catamarans are typically larger and heavier than traditional monohull boats, making them more difficult to store and transport.

Additionally, they can be more expensive to purchase and maintain than other types of boats.

Furthermore, although catamarans are known for their stability, they are not as good at handling rough seas and can be more easily affected by wind and waves.

Finally, catamarans may not be good for people who want to go very fast, as they are not as fast as some other types of boats.

In summary, catamaran boats have some great advantages, such as their stability and comfort, but they also have some drawbacks that must be taken into consideration.

They are more expensive to purchase and maintain, they are heavier and more difficult to store and transport, and they may not be suitable for people who want to go very fast.

How to Select the Right Catamaran Boat

Choosing the right catamaran boat is an important decision.

You need to consider your budget, the size of the boat, and the type of activities you plan on doing.

When selecting a catamaran, you should consider the following: 1.

Budget: How much money do you have to spend on the boat? This includes the purchase price and any additional costs, such as maintenance and repairs.

Size: Catamarans come in a variety of sizes, from small sailboats to large luxury yachts.

Consider the size of the boat and how much space you need for passengers and gear.

Usage: What type of activities do you plan on using the boat for? If you plan on using it for recreational activities such as sailing, fishing, and watersports, you may want to select a boat that is specifically designed for those activities.

If you plan on using it for commercial purposes, such as ferrying passengers or freight, you may want to select a boat that is designed for that purpose.

Design: Catamarans come in a variety of shapes and designs.

Think about the type of boat you want and research the different types of catamarans available.

Performance: Performance is an important factor to consider when selecting a catamaran.

Research the boats speed, fuel efficiency, and maneuverability.

By considering these factors, you can ensure that you select the right catamaran boat for your needs.

Be sure to also research reviews of different models to make sure you are getting a quality boat.

With the right catamaran, you can enjoy a safe and comfortable experience on the water.

Maintenance and Care of Catamaran Boats

catamaran boat definition

Maintaining and caring for a catamaran boat is just as important as selecting the right model for your needs.

This type of vessel requires regular care and maintenance to ensure it remains in excellent condition and safe to use.

Proper maintenance and care will also extend the life of the boat and help prevent expensive repairs in the future.

When it comes to maintaining a catamaran boat, the most important step is to inspect it regularly.

This involves looking for any damage, such as cracks in the hull or any other signs of wear and tear.

It is also important to check the rigging and make sure any ropes and lines are not frayed or worn.

If any damage is found, it should be fixed as soon as possible to prevent further damage.

In addition to inspecting the boat, it is important to regularly clean and wax the hulls to prevent a buildup of dirt and grime.

This will also help to maintain the boat’s appearance and protect the surface from UV rays.

It is also important to check the engine regularly to ensure it is running properly and to check the batteries for any damage.

If the engine is not running properly, it is important to have it serviced immediately.

Finally, it is essential to ensure the boat is stored properly when not in use.

This includes covering it with a tarp or boat cover to protect it from the elements.

It is also important to ensure the boat is secured in a dry, well-ventilated area with no direct sunlight.

This will help to protect the boat from corrosion and other damage caused by harsh weather conditions.

By following these simple maintenance and care tips, catamaran boat owners can ensure their vessel remains in excellent condition and safe to use.

Regular maintenance and care will also ensure the boat lasts longer and remains reliable for years to come.

Popular Uses of Catamaran Boats

Catamaran boats are becoming increasingly popular for both leisure and commercial purposes due to their stability and comfort.

They are an excellent choice for those who enjoy recreational activities such as sailing, fishing, water skiing, wakeboarding, and more.

Catamarans are typically larger and heavier than traditional monohull boats but are much faster and more efficient.

Catamaran boats offer superior stability, which makes them ideal for activities where you need to remain steady, such as fishing and water skiing.

For those who want to take it a step further, catamarans are also great for racing, due to their speed and maneuverability.

In terms of luxury and comfort, catamarans are a great choice.

They offer a larger interior space than a traditional monohull boat, meaning you can fit more people and amenities on board.

Catamarans also offer more living space in the form of a larger deck and greater headroom.

This makes them perfect for entertaining and relaxing, as well as providing plenty of space for fishing and other activities.

Catamarans are also becoming increasingly popular for commercial purposes.

They are great for ferrying passengers and cargo, due to their larger capacity and greater stability.

This makes them perfect for island transport and other commercial applications.

Catamarans are also becoming popular for eco-tourism, as they offer a quieter, more eco-friendly way to explore.

Overall, catamaran boats are a great choice for those who want to enjoy recreational activities, entertain, or transport passengers and cargo.

They offer superior stability and comfort, as well as greater speed and efficiency than traditional monohull boats.

Whether youre looking for a recreational boat or a commercial vessel, a catamaran is an excellent choice.

Final Thoughts

Catamaran boats are an increasingly popular choice for leisure and commercial activities due to their stability, speed, and comfort.

There are a variety of catamaran boats to choose from, each offering their own unique advantages and disadvantages.

To make sure you select the right catamaran boat for your needs, its important to consider all factors, such as size, cost, and maintenance.

With proper care and maintenance, catamarans can provide years of reliable and enjoyable service.

Now that you know the basics of what a catamaran boat is, why not take a look at the different types and find the perfect one for your next sailing adventure?.

James Frami

At the age of 15, he and four other friends from his neighborhood constructed their first boat. He has been sailing for almost 30 years and has a wealth of knowledge that he wants to share with others.

Recent Posts

When Was Banana Boat Song Released? (HISTORICAL INSIGHTS)

The "Banana Boat Song" was released in 1956 by Harry Belafonte. This calypso-style song, also known as "Day-O," became a huge hit and remains popular to this day for its catchy tune and upbeat...

How to Make Banana Boat Smoothie King? (DELICIOUS RECIPE REVEALED)

To make a Banana Boat Smoothie King smoothie at home, start by gathering the ingredients: a ripe banana, peanut butter, chocolate protein powder, almond milk, and ice. Blend the banana, a scoop of...

  • Daily Crossword
  • Word Puzzle
  • Word Finder
  • Word of the Day
  • Synonym of the Day
  • Word of the Year
  • Language stories
  • All featured
  • Gender and sexuality
  • All pop culture
  • Writing hub
  • Grammar essentials
  • Commonly confused
  • All writing tips
  • Pop culture
  • Writing tips

Advertisement

[ kat- uh -m uh - ran , kat - uh -m uh -ran ]

  • a vessel, usually propelled by sail, formed of two hulls or floats held side by side by a frame above them. Compare trimaran .
  • a float or sailing raft formed of a number of logs lashed together, used in certain parts of India, South America, etc.
  • Canadian Dialect. a wooden sled.

/ ˌkætəməˈræn /

  • a sailing, or sometimes motored, vessel with twin hulls held parallel by a rigid framework
  • a primitive raft made of logs lashed together
  • old-fashioned. a quarrelsome woman

Word History and Origins

Origin of catamaran 1

Example Sentences

It involved a private island tour, catamaran cruise, visiting Rihanna’s childhood home and more.

We were about to sail back to Puerto Vallarta, but the catamaran barely moved.

I think the crew just didn’t know how to maneuver the catamaran very well, the sea was not very rough nor was it too windy.

I can paddle my catamaran against both wind and tide; why cannot you do the same?

They never tired, I think, of seeing me handle my giant “catamaran” and the (to them) mysterious harpoon.

We also started building a catamaran, with which to navigate the river when the floods had subsided.

She had easily forced a way for the catamaran through the branches, and once past, had drawn them together again.

Yamba cried out to me to lie flat on the catamaran, and hold on as tightly as I could until we reached smooth water again.

Related Words

Cambridge Dictionary

  • Cambridge Dictionary +Plus

Meaning of catamaran in English

Your browser doesn't support HTML5 audio

  • cabin cruiser
  • dragon boat
  • As soon as the boat anchored, a catamaran put out, and brought Charlie and his followers to shore.  
  • Next morning we were visited by a party of natives from the neighbouring island, consisting of six men in a canoe, and one on a catamaran or raft.  
  • Soon we were surrounded with catamarans and canoes, with three or four natives in each.  
  • The horses and cows were taken on a species of catamaran, or large raft, that is much used in those mild seas, and which sail reasonably well a little off the wind, and not very badly on.  
  • When we reached the lagoon, a catamaran with three natives on it came off to us.  

Examples of catamaran

Translations of catamaran.

Get a quick, free translation!

{{randomImageQuizHook.quizId}}

Word of the Day

24 hours a day, seven days a week: all the time

It’s as clear as mud! (Words and expressions that mean ‘difficult to understand’)

It’s as clear as mud! (Words and expressions that mean ‘difficult to understand’)

catamaran boat definition

Learn more with +Plus

  • Recent and Recommended {{#preferredDictionaries}} {{name}} {{/preferredDictionaries}}
  • Definitions Clear explanations of natural written and spoken English English Learner’s Dictionary Essential British English Essential American English
  • Grammar and thesaurus Usage explanations of natural written and spoken English Grammar Thesaurus
  • Pronunciation British and American pronunciations with audio English Pronunciation
  • English–Chinese (Simplified) Chinese (Simplified)–English
  • English–Chinese (Traditional) Chinese (Traditional)–English
  • English–Dutch Dutch–English
  • English–French French–English
  • English–German German–English
  • English–Indonesian Indonesian–English
  • English–Italian Italian–English
  • English–Japanese Japanese–English
  • English–Norwegian Norwegian–English
  • English–Polish Polish–English
  • English–Portuguese Portuguese–English
  • English–Spanish Spanish–English
  • English–Swedish Swedish–English
  • Dictionary +Plus Word Lists
  • English    Noun
  • Translations
  • All translations

To add catamaran to a word list please sign up or log in.

Add catamaran to one of your lists below, or create a new one.

{{message}}

Something went wrong.

There was a problem sending your report.

catamaran boat definition

A catamaran (from Tamil kattumaram ) [1] is a type of multihulled boat or ship consisting of two hulls, or Vakas , joined by a frame, formed of Akas. Catamarans can be sail- or engine-powered. The catamaran was first discovered being used by the paravas, a fishing community in the southern coast of Tamil Nadu, India . Catamarans were used by the ancient Tamil Chola dynasty as early as the fifth century C.E. to move their fleets to invade such Southeast Asian regions as Burma , Indonesia , and Malaysia .

Catamarans are a relatively recent introduction to the design of boats for both leisure and sport sailing, although they have been used for millennia in Oceania , where Polynesian catamarans and outrigger canoes allowed seafaring Polynesians to settle the world's most far-flung islands .

  • 1 Multihull component terms
  • 3.1 Pontoon Boat or Hydroairy Ship
  • 4.1 Sailing Beach Catamarans
  • 4.2 Catamarans for passenger transport
  • 4.3 Powered catamarans
  • 4.4 Cruising Sail Cats
  • 4.5 Mega catamarans
  • 7 References
  • 8 External links

In recreational sailing, catamarans and multihulls, in general, have been met by a degree of skepticism from Western sailors accustomed to more "traditional" monohull designs. [2] The main source of that skepticism was that multihulls were based on concepts that were completely alien and strange to them, with balance based on geometry rather than weight distribution. The second source of that skepticism is that catamarans work better than traditional designs, and with less weight, therefore ridiculing the traditional concepts. In the realm of fast ferries, where their powering characteristics and spacious arrangements are of value, the catamaran has become arguably the hull form of first choice.

Multihull component terms

There are three terms that describe the components of modern multihulls (catamarans and trimarans): vaka , aka , and ama . [3] The term vaka , like the related terms aka and ama , come from the Malay and Micronesian language group terms for parts of the outrigger canoe, and vaka can be roughly translated as canoe or main hull. [4]

  • Aka [4] - The aka of a multihull sailboat is a member of the framework that connects the hull to the ama(s) (outrigger). The term aka originated with the proa, but is also applied to modern trimarans.
  • Ama [4] - The term ama comes from the proa. The vaka is the main hull, the ama is the outrigger, and the aka [4] or iako (Hawaiian) is the support connecting the two (not three) hulls. The term ama and aka have been widely applied to modern trimarans.
  • Vaka [4] - A proa consists of a vaka, the main canoe-like hull; an ama, the outrigger; and akas, the poles connecting the ama to the vaka.

Semantically, the catamaran is a pair of Vaka held together by Aka , whereas the trimaran is a central Vaka , with Ama on each side, attached by Aka .

catamaran boat definition

The English adventurer and buccaneer William Dampier , traveling around the world in the 1690s in search of business opportunities, once found himself on the southeastern coast of India, in Tamil Nadu. He was the first to write in English about a kind of vessel he observed there. It was little more than a raft made of logs.

”On the coast of Coromandel," he wrote in 1697, "they call them Catamarans. These are but one Log, or two, sometimes of a sort of light Wood ... so small, that they carry but one Man, whose legs and breech are always in the Water.”

While the name came from Tamil, the modern catamaran came from the South Pacific . English visitors applied the Tamil name catamaran to the swift, stable sail and paddle boats made out of two widely separated logs and used by Polynesian natives to get from one island to another.

The design remained relatively unknown in the West for almost another 200 years, until an American, Nathanael Herreshoff, began to build catamaran boats of his own design in 1877 (US Pat. No. 189,459), namely 'Amaryllis', which immediately showed her superior performance capabilities, at her maiden regatta (The Centennial Regatta held on June 22, 1876, off the New York Yacht Club's Staten Island station [2] ). It was this same event, after being protested by the losers, where Catamarans, as a design, were barred from all the regular classes [2] and they remained barred until the 1970s.

This ban relegated the catamaran to being a mere novelty boat design until 1947. [5] In 1947, surfing legend, Woodbridge "Woody" Brown and Alfred Kumalae designed and built the first modern ocean-going catamaran, Manu Kai, in Hawaii . Their young assistant was Rudy Choy, who later founded the design firm Choy/Seaman/Kumalae (C/S/K, 1957) and became a fountainhead for the catamaran movement. The Prout Brothers, Roland and Francis, experimented with catamarans in 1949 and converted their 1935 boat factory in Canvey Island, Essex (England) to catamaran production in 1954. Their Shearwater catamarans won races easily against the single hulled yachts.

The speed and stability of these catamarans soon made them a popular pleasure craft, with their popularity really taking off in Europe, and was followed soon thereafter in America. Currently, most individually owned catamarans are built in France , South Africa , and Australia .

In the mid-twentieth century, the catamaran inspired an even more popular sailboat, the Beach Cat . In California, a maker of surfboards, Hobie Alter produced (in 1967) the 250-pound Hobie Cat 14, and two years later the larger and even more successful Hobie 16. That boat remains in production, with more than 100,000 made in the past three decades.

The Tornado catamaran is an Olympic class sailing catamaran, with a crew of two. It has been in the Olympic Games since 1976. It was designed in 1967 by Rodney March of Brightlingsea, England, with help from Terry Pierce, and Reg White, specifically for the purpose of becoming the Olympic catamaran. At the IYRU Olympic Catamaran Trials, it easily defeated the other challengers.

The normal catamaran multihull, powered or not, consists of two Amas separated by two Akas, which may suspend a platform or trampoline between them. They can be of various sizes and recently, they have become very large.

Pontoon Boat or Hydroairy Ship

catamaran boat definition

The hydroairy ship appears to be nothing more than an upgraded and enlarged pontoon boat with a formed and shaped underplatform. The general architecture is identical, consisting of two flotation chambers, for the Amas, joined by a load carrying platform, which carries the superstructure.

In 1952, Minnesota farmer Ambrose Weeres had an idea that if you put a wooden deck on top of two columns of steel barrels welded together end to end, you would have a sturdy deck that would be more stable on a lake than a conventional boat. [6] Weeres was walking the same idea paths as the early Polynesians, while proving that the ideas behind the multihull are not all that counterintuitive.

These sorts of boats are cheap and easy to make, require no ballast, and thus have good performance. Although, this design is almost exclusively restricted to power boats. It is still, essentially, a catamaran. No displacement is lost towards ballast, therefore yielding huge operational efficiencies.

catamaran boat definition

The Small Waterplane Area Twin Hull (SWATH) is a hull form used for vessels that require a ship of a certain size to handle in rough seas as well as a much larger vessel. An added benefit is a high proportion of deck area for their displacement—in other words, large without being heavy. The SWATH form was invented by Canadian Frederick G. Creed, who presented his idea in 1938 and was later awarded a British patent for it in 1946. It was first used in the 1960s and 1970s as an evolution of catamaran design for use as oceanographic research vessels or submarine rescue ships.

catamaran boat definition

Catamarans provide large, broad decks, but have much higher water resistance than monohulls of comparable size. To reduce some of that resistance (the part that generates waves), as much displacement volume as possible is moved to the lower hull and the waterline cross-section is narrowed sharply, creating the distinctive pair of bulbous hulls below the waterline and the narrow struts supporting the upper hull. This design means that the ship's flotation runs mostly under the waves, like a submarine (the smooth ride of a sub was the inspiration for the design). The result is that a fairly small ship can run very steady in rough seas. A 50-meter ship can operate at near full power in nearly any direction in waves as high as 12 meters

The S.W.A.T.H. theory was further developed by Dr Thomas G. Lang, inventor of improvements to the semi-submerged ship (S3) in about 1968. Basically, a SWATH vessel consists of two parallel torpedo like hulls attached to which are two or more streamlined struts which pierce the water surface and support an above water platform. The US Navy commissioned the construction of a SWATH ship called the 'Kaimalino' to prove the theory as part of their ship research program. The Kaimalino has been operating successfully in the rough seas off the Hawaiian islands since 1975.

Usage and Application

Sailing beach catamarans.

catamaran boat definition

Although the principles of sailing are the same for both catamarans and monohulls, there are some "peculiarities” to sailing catamarans. For example:

  • Catamarans can be harder to tack if they don't have dagger boards or centre boards. All sailboats must resist lateral movement in order to sail in directions other than downwind and they do this by either the hull itself or else dagger boards or centre boards. Also, because catamarans are lighter in proportion to their sail size, they have less momentum to carry them through the turn when they are head to wind. Correct use of the jib sail (back-filling the jib to pull the bow around) is often essential in successfully completing a tack without ending up stuck in irons (pointing dead into the wind and sailing backwards, see: No-Go Zone).
  • They have a higher speed than other sailboats of the same size. This is because they can have a much larger sail area due to the larger righting moment. They can reach over 1.5 times the speed of the wind.
  • Catamarans are less likely to capsize in the classic 'beam-wise' manner but often have a tendency to pitchpole instead—where the leeward (downwind) bow sinks into the water and the boat 'trips' over forward, leading to a capsize.

Teaching for new sailors is usually carried out in monohulls as they are thought easier to learn to sail, a mixture of all the differences mentioned probably contributes to this.

Catamarans, and multihulls in general, are normally faster than single-hull boats for three reasons:

  • catamarans are lighter due to the fact there is no keel counterweight;
  • catamarans have a wider beam (the distance from one side of the boat to the other), which makes them more stable and therefore able to carry more sail area per unit of length than an equivalent monohull; and
  • the greater stability means that the sail is more likely to stay upright in a gust, drawing more power than a monohull's sail which is more likely to heel (lean) over.

A catamaran is most likely to achieve its maximum speed when its forward motion is not unduly disturbed by wave action. This is achieved in waters where the wavelength of the waves is somewhat greater than the waterline length of the hulls, or it is achieved by the design piercing the waves. In either case pitching (rocking horse-like motion) is reduced. This has led to it being said that catamarans are especially favorable in coastal waters, where the often sheltered waters permit the boat to reach and maintain its maximum speed.

Catamarans make good cruising and long distance boats: The Race (around the world, in 2001) was won by the giant catamaran Club Med skippered by Grant Dalton. It went round the earth in 62 days at an average speed of eighteen knots.

Catamarans for passenger transport

catamaran boat definition

An increasing trend is the deployment of a catamaran as a high speed ferry. The use of catamaran for high speed passenger transport was pioneered by Westermoen Hydrofoil in Mandal, Norway , who launched the Westamaran design in 1973. The Westamarans, and later design, some of them consisting of a catamaran hull resting on an air cushion between the hulls, became dominant for all high speed connections along the Norwegian coast. They could achieve speeds comparable to the hydrofoils that it replaced, and was much more tolerant to foul water and wave conditions.

Powered catamarans

A recent development in catamaran design has been the introduction of the power catamaran. The 'power' version incorporates the best features of a motor yacht and combines it with the characteristics of a multihull.

Usually, the power catamaran is devoid of any sailing apparatus as demonstrated by one of the top-selling models in the United States, the Lagoon Power 43. This vessel has now been introduced to a number of charter fleets in the Caribbean and the Mediterranean and is becoming an increasingly common sight.

Smaller powered catamarans are becoming quite common in the United States with several manufacturers producing quality boats. A small "cat" will almost certainly have two engines while a similar sized mono-hull would only one engine. All mid-size and larger cats will have two engines.

catamaran boat definition

Cruising Sail Cats

Below a minimum size, about eight meters (24 ft.), the catamaran's hulls do not have enough volume to allow them to be used as living space. At the same time, the bridgedeck area isn't sufficiently sized to make effective live-aboard space either. This limits their use to beachcats and day sailors. However, once one gets above that, both the bridgedeck area and the hulls gain sufficient size for use as compartments and navigation decks. These are the cruising catamarans that are being seen more often at yacht clubs that host circumnavigators.

While more popular in the EU, they are gaining popularity in the US as well due to their superior comfort, stability, safety, and speed, over monohulls. These boats can maintain a comfortable 300 nmpd (nautical miles per day) passage, with the racing versions recording well over 400 nmpd, and they do this while being unsinkable. This is extremely desirable, for circumnavigating the world. In addition, they don't heel more than 10-12 degrees, even at full speed on a reach.

Even without the actual need to circumnavigate, these catamaran megayachts allow a level of comfort and life-style not possible on a monohull sailboat and only previously possible on large power cruisers. This is their attraction.

Due to the perceived need to retain single-handed sail handling, 45 m is expected to remain the upper limit for this class of yacht.

Mega catamarans

catamaran boat definition

One of the biggest developments over the last decade in the yachting arena has been the rise of the super catamaran: a multihull over 100 feet in length, in semi-custom and custom designs.

Various international manufacturers are leading the way in this area including Blubay, Yapluka, Sunreef, Lagoon and Privilege. A catamaran 150 feet in length is under construction at Derektor shipyards in Bridgeport, Connecticut .

catamaran boat definition

The emergence of the super or mega catamaran is a relatively new event which is akin to the rise of the mega or super yacht which was used to describe the huge growth in luxury, large motor yachts in the French Riviera and Floridian Coast.

One of the reasons for increased mega catamaran construction was The Race , a circumnavigation challenge that departed from Barcelona, Spain , on New Year's Eve, 2000. Due to the prize money and prestige associated with this event, four new catamarans (and two highly modified ones) over 100 feet in length were built to compete. The largest, "PlayStation", owned by Steve Fossett, was 125 feet long and had a mast which was 147 feet above the water. Virtually all of the new mega cats were built of pre-preg carbon fiber for strength and the lowest possible weight. Top speeds of these boats can approach 50 knots.

Types of sailing vessels and rigs
Barque ·Barquentine ·Bermuda rig ·Bilander ·Brig ·Brigantine ·Caravel ·Carrack · ·Catboat ·Clipper ·Dutch Clipper ·Cog ·Corvette ·Cutter ·Dhow ·Fifie ·Fluyt ·Fore & Aft Rig · ·Full Rigged Ship ·Gaff Rig ·Galeas ·Galiot ·Galleon ·Gunter Rig ·Hermaphrodite Brig ·Jackass-barque · ·Ketch ·Longship ·Lugger ·Mast Aft Rig ·Mersey Flat ·Multihull ·Nao ·Norfolk Wherry ·Pink ·Pocket Cruiser ·Polacca ·Pram ·Proa ·Sailing hydrofoil ·Schooner ·Ship of the Line ·Sixareen ·Sloop ·Smack ·Snow ·Square Rig ·Tall Ship ·Thames Sailing Barge ·Trimaran ·Vinta ·Wherry ·Windjammer ·Windsurfer ·Xebec ·Yacht ·Yawl ·Yoal
  • ↑ Catamaran Online Etymology Dictionary. Retrieved June 17, 2008.
  • ↑ 2.0 2.1 2.2 L. Francis Herreshoff, The Spirit of the Times, November 24, 1877 (reprint). Marine Publishing Co., Camden, ME. Retrieved June 17, 2008.
  • ↑ The Tridarka Raider Tridarkaraider. Retrieved June 17, 2008.
  • ↑ 4.0 4.1 4.2 4.3 4.4 A primer on proas Proafile. Retrieved June 17, 2008.
  • ↑ The UCI later created this same sort of ban, in 1934, when it invalidated Faure's record of 45 km in one hour, in July 7, 1933, on a Recumbent bicycle, with rule changes specifically designed to exclude the Recumbent bicycle, where Recumbent bicycle technology was similarly repressed.
  • ↑ WEERES History Retrieved June 25, 2008.

References ISBN links support NWE through referral fees

  • Berman, Phil, and Bradford Scott. 1999. Catamaran Sailing: From Start to Finish . New York, NY: W. W. Norton & Co. ISBN 9780393318807
  • Marchaj, C. A. 1980. Aero-Hydrodynamics of Sailing . New York, NY: Dodd, Mead. ISBN 9780396077398
  • ———. 2003. Sail Performance: Techniques to Maximize Sail Power . London, UK: Adlard Coles Nautical. ISBN 9780713664072
  • ———. 1986. Seaworthiness: The Forgotten Factor . Camden, ME: International Marine Pub. Co. ISBN 9780877422273
  • Tarjan, Gregor. 2007. Catamarans . Camden, MI: International Marine. ISBN 0071498850

External links

All links retrieved November 30, 2023.

  • Catamaran Sailing at TheBeachcats.com Site devoted to all types of small catamarans known as beachcats.

New World Encyclopedia writers and editors rewrote and completed the Wikipedia article in accordance with New World Encyclopedia standards . This article abides by terms of the Creative Commons CC-by-sa 3.0 License (CC-by-sa), which may be used and disseminated with proper attribution. Credit is due under the terms of this license that can reference both the New World Encyclopedia contributors and the selfless volunteer contributors of the Wikimedia Foundation. To cite this article click here for a list of acceptable citing formats.The history of earlier contributions by wikipedians is accessible to researchers here:

  • Catamaran   history

The history of this article since it was imported to New World Encyclopedia :

  • History of "Catamaran"

Note: Some restrictions may apply to use of individual images which are separately licensed.

  • Physical sciences
  • Transportation technology
  • Pages using ISBN magic links

Copyright Logo

catamaran boat definition

A Complete Catamaran Guide

  • Post Written By: Boater Jer
  • Published: January 26, 2020
  • Updated: November 27, 2020

A family enjoys some leisure time in the waters behind their luxury catamaran.

Disclaimer: You might notice that we recommend products in some articles. We may earn a commission for referring you if you click the link and buy a product.

We only recommend products we’ve tried/tested/own (that’s why you won’t find thousands of affiliate links on my site). If you have experience with one of the products we’ve mentioned, please share your experiences in the comments at the end.

There you are, out on the water when a strange craft approaches.  Is it a sailboat? It sure looks like one until it turns to face you.  That’s when you notice this boat doesn’t have just one hull. It has two hulls and it’s called a catamaran.

Catamarans are unique, and highly stable watercraft.  We’ll explore all the ins and outs of sailing the waters in one of these weird, and awesome multi-hulled craft.  Join me as we explore the wild world of sailing catamarans.

A small sailing catamaran sits on a beach.

A History Of The Catamaran

It is believed that the first people to use a catamaran design were those living in Australasia.

A map showing the region where the catamaran originated.

The succession of boat design in this region was actually very interesting.  The beginning of boats in the area was simple, albeit conventional rafts. These were fashioned from logs strewn together with plant fiber lashings such as those formed using bamboo fiber.  

Catamaran Evolution

An info graphic showing the progression of the evolution of the catamaran.

The conventional raft gave way to a minimal raft.  This design was basically a conventional raft with two cross beams added in the form of logs.  These would be eventually hollowed out to improve buoyancy.

The next step in the evolution of boats in the Australasian region was the double canoe.  This proved to be the first real catamarans.  

After some time, the form evolved further into the asymmetrical double canoe design.  In this design, one canoe was large and the other attached canoe was smaller.

The asymmetrical design quickly evolved into the single-outrigger boat like the one shown in the photo below.

A monohull canoe with an attached exterior outrigger is shown in this file photo.

The final stage of the evolution of the catamaran in the region was to gain a second outrigger.  This in effect created the trimaran with the single central hull and dual outriggers.

Eye Witness Accounts Of Catamarans

In 1697, William Dampier wrote of witnessing a type of seafaring vessel off the coast of Coromandel.  He noted how the locals called the type of boat a catamaran. He also noted that it had multiple hulls (logs) and that they were small vessels that the person operating would have to hang partway into the water, straddling the hull (log).

The name catamaran came from the Tamil.  And yet, it was easily applied by the European visitors to the two hulled sailing vessels that sped across the water in the region.

Although Dampier may have described the catamaran in the 1690s, the type of boat was actually used as early as the 5th century by the Tamil Chola dynasty.  They used boats to move their troops from one island to another. Using this design of boat allowed them to travel heavy, travel quickly and was partially responsible for the conquering of neighboring Burma, Malaysia, and Indonesia.

Building A Boat – Basics Of Catamaran Construction

A boat is usually thought of as being a single-hulled vessel that travels along the surface of the water.  It can have multiple types, shapes, and designs of the hull. However, it is often only thought of as having a single hull.  But, what if it had two hulls? Would that be like taking two separate boats, and making a raft over both of them? In essence, that is exactly what a catamaran is:  two boats made into one.

Advantages Of Multiple Hulls

  • More stability than a monohull
  • Wide supporting base allows for larger sails than monohull craft of the same length
  • Hull does not require the deep-running keel of a standard monohull sailboat
  • Less hull drag in the water than a monohull
  • Less power required to drive a catamaran forward than a monohull boat

Disadvantages Of Multiple Hulls 

  • Due to multiple hulls, construction is more expensive than a monohull design
  • Catamaran speed relies on lightweight materials to make a lightweight craft.  This also drives up the cost of construction.
  • Extra engineering requirements for multi-hull craft also increase the cost of construction.

Conclusion?  Well, it looks to me like everything about catamarans points towards superiority over monohulls in nearly every way.  But, you get what you pay for. I think the same thing likely applies to cars too. For instance, I have a performance car that cost me about 10k more than the equivalent non-sports car within the same class. 

Yet to drive the vehicle, it performs so much better than the normal version of the car, it really speaks volumes to the difference between a common vehicle, and a performance one.

Speaking of performance vehicles, let’s take a look now at the different kinds and uses of a catamaran.

Catamaran Types

Commercial catamarans – ferries.

Catamarans are often used as a ferry to transport people and vehicles across bodies of water as shown in this photo.

One of the most common uses for a catamaran is the commercial use of the vehicle design when it comes to ferries.  This is likely due to the wide, flat deck possibilities of a catamaran versus a monohulled boat. Not only that, but the catamaran is also a much more stable bodied vessel.  This again makes it a superior design for transporting larger land vessels like trucks and so forth. They can easily drive on the ferry without fear of the ferry tipping over.

Some ferries are designed for taking vehicles, like the one you might find in the city of Toronto.  Where it transports cars from the mainland to Toronto Island. Others are designed specifically with the sole purpose of transporting people. I took a look at one such ferry that operates in Germany.  Take a look at the following case study.

Commercial Use Case Study – The Ferry

The FRS Helgoline is a ferry catamaran operating out of Flensburg, Germany, close to the Danish border.

A map showing Northern Germany, Denmark and Poland.

According to the ferry company’s website, the ferry runs using four main engines which are run to a capacity of 12,182 hp combined.  This blasts this ferry at a speed of 35 knots or 65 km/hour. This is equivalent to 40 miles per hour. That’s pretty good considering the size and weight of the ship body this catamaran can carry.

Speaking of capacity, the ship can carry 680 passengers. At 56.4 meters long (185 feet) by 14 meters wide (45.9 feet), that’s a decent passenger capacity. 

Catamaran Passenger Capacity Versus Monohull Boat Passenger Capacity 

The general rule for calculating passenger capacity for a boat is as follows.

Length x Width / 15 = Passenger Capacity

Therefore, the FRS Helgoline should have a calculated capacity calculated as follows.

185 x 45.9 / 15 = 566  

But it actually has a capacity of 680 which is a 20% increase in capacity over a standard monohull.

For comparison, let’s look at a superyacht.  A 48.5m (159 feet) long by 10.7m (35 feet) beam (width of the boat) Palmer Johnson Supersport 48 (valued at about $28.5 million dollars) should have a capacity calculated as follows.

159 x 35 / 15 = 371

In short, 26 feet of difference in length equates to 309 fewer passengers.  It is almost half of the capacity of the catamaran at 26 feet longer length.

A super yacht sits like a golden blade floating in the water.

Photo courtesy of https://sysyachtsales.com/

Commercial Catamarans – Service Vehicles

In port in Australia, a service catamaran sits docked in this photo.

Although Catamarans are typically used as ferries due to their stability and ability to carry wide loads on their flat decks, there are many different service catamarans out there as well.  From a support vessel to a crew transfer or search and rescue, catamarans are a solid and stable platform to build a ship on.

This is the Ardea which is a 20 meter (65.6 feet) catamaran to be used for crew transport and as a support ship.  This ship was built by the Echo Marine Group and delivered to Western Australia in early 2019. This particular vessel is in the service of the Cape Preston Sino Iron Project.  

Catamarans are used all around the world, for a variety of tasks, not just ferries or support craft.

Commercial Catamarans – Cruise Lines

A large red and white catamaran cruise ship sits idle in the waters in front of a bustling metropolis in this photo.

Now these are the catamarans we all want to be aboard, aren’t they?  Due to the wide stance, these ships can feature massive halls and wide-open interior areas.  These ships are stable, and some would say even more stable and safer than monohull design ships.  

There are many cruise ship catamarans in use today around the world.  Some of the more ‘famous’ catamaran cruises are those which investigate the Galapagos Islands.  There are several high-end, small fleet, cruise lines operating to the Galapagos which utilize catamaran design vessels as their primary ship type. 

These ships can be extremely comfortable and stable and often offer some reprieve to those who may otherwise feel seasick. It won’t stop the feeling, but the more stable the hull, the less the boat rocks around.

Military Catamarans

The USNS Spearhead races forward along the water in this file photo.

Catamarans make excellent military transport vessels.  They are stable and the potential to have a large, flat and wide deck for transporting land craft, troops or acting as a landing pad for vertical take-off aerial craft.  The stability of the two hulls makes the vessel an excellent candidate for military use, and thus it is used for said purpose.

A photo of the rear of the USNS Spearhead - a military catamaran.

As you can clearly see in the image of the USNS Spearhead, the rear of the vessel has a moveable ramp that can be used for loading and unloading land vehicles.  The interior bay of the craft is visible in the image as well, a large area for storage of vehicles, supplies and more. The crane arm on the back of the ship also shows how it is a versatile craft, set up to act as an excellent support craft with a helicopter landing pad and ample storage and freight capacity.

Recreational Catamarans

Siting on a beach, a small catamaran sail is set against the wind swept clouds and blue sky.

Catamaran Personal WatercraftThe wind is in your hair, the warm spray from the hull cutting over the edge of each wave as you skip over the water.  That is life, let me tell you. Personal watercraft have come a long way over the years and the small one, two, three and four-person catamarans have come a long way as well. 

This image shows a homemade catamaran.

Depending on the options, you can get a small one or two-person catamaran for as little as $1500 new.  That might be an inflatable though. There are some very nice, rigid hull designed catamarans for 1-4 people that range from $3500 to $15000.  And these are basically open, personal watercraft like that shown in the image below.

Using a small catamaran can be quite challenging to learn at first.  Sailing is not for the faint of heart. It requires skill, technique, knowledge of the wind and sea, and a bit of hard work.  But it can be fun, rewarding and a great way to catch some sun and fresh air out on the water. It’s a relatively GREEN sport as well.   Given the use of sails over gas-powered motors that is.

‘Sailing Cats’ – Sailing Catamarans – Yacht & Luxury Class

This photo shows a luxury sailing catamaran yacht.

Here’s where we get into the dreamy boats of the rich and famous.  I priced out a small 43’ luxury Leopard 40 sailing catamaran. Even before I added any extras at all, the base price was $399,000 USD.  I imagine if I added a few of the multiple extras available, and some tax, freight and that sort of thing, I’m easily in half a million dollars.  And that’s the smallest base model.

There are all kinds of luxury catamaran shipbuilders across the world.  From Asia to Europe and The Americas, it seems any major boating country has at least one company building luxury catamarans.  It’s weird that you don’t see more of them on the water though, don’t you think?

Being sailing vessels, these luxury cats require some training in sailing before you get behind the wheel.  And considering the price point, I would definitely want to be at least a semi-decent sailor with some good few years experience under my belt before I would comfortable at the helm of a half-million-dollar sailing cat.  It’s all relative I suppose. I imagine a billionaire might bat an eye at the prospect of wrecking a half-million-dollar boat. But to me, and most of you reading this, that’s likely a lot of money.

‘Power Cats’ – Powered Catamarans

A powered catamaran is shown in this file photo.

The powered catamaran is one of my favorite boats.  They have sort of a muscle car appearance with the wide and often tall front end of the boats.  I find it to be reminiscent of a large air intake on the front hood of a rally race car like the Subaru WRX, for instance.  These boats are fast, they are stable and handle very well. Catamarans are often considered the boat of choice for long sea voyages due to their stability.  

A powered catamaran will definitely cost more than a powered monohull boat of the same length.  Why? Well, the powered catamaran has one crucial downside. That is, it needs two engines. One for each of the two hulls.  Otherwise, it’s off balance for propulsion. These two engines or motors have to be in sync with each other or again, the propulsion will be off-balance.  Because they have two motors, they have double the maintenance when it comes to maintaining the propulsion system.

More components also means a greater chance of things breaking down.  In essence, it doubles the chances of the ship having a motor break down. The saving grace is that should one motor break, they have a backup, even if it does mean very unbalanced propulsion.  In contrast, a monohull vessel of the same length may only have half the chance of motor failure due to only having one motor, but if that one motor breaks, then what? Call for help, that’s what.  A cat would have a struggling chance to get itself back to port. A monohull would be dead in the water unless it was carrying spare parts or another motor onboard somewhere.

Catamaran Frequently Asked Questions

What is a catamaran cruise.

catamaran boat definition

A catamaran cruise is simply a cruise on a dual hull design boat.  Often used for river cruises, the catamaran which is used as cruise ships are often considerably smaller than their giant monohulled counterparts.

What is the purpose of a catamaran?

A catamaran is a design for a boat that utilizes two hulls.  Due to the flat, platform-like-potential for the deck of the boat, the catamaran is often purposed with transporting materials, vehicles, and people.  For instance, catamarans are quite often used as ferries.

Is catamaran safe?

Catamaran are very safe water craft.   The design of riding on two hulls separated by a gap in between, in essence is like giving a car a double-wide wheel base.  The wider the stance, the more stable the craft, from side to side anyway. And if the length of the boat is proportional to the width, then it becomes an extremely stable craft.  That is why catamarans are often considered the best to be used for long voyages. Yes, catamaran are safe.

What is the difference between a catamaran and a sailboat?

A traditional sailboat is a deep, monohull vessel that has at least one mast extending high into the air above the deck to hold sails.  A catamaran refers to the design of a dual-hull boat and really has nothing to do with sails. Although, catamaran do make excellent sailing boats as well, they are quite capable of acting as power boats and do not require sails if they have the correct amount of powered motors to propel them.  Sailboats, although also able to be powered if a motor is provided, are traditionally monohull and wind-powered exclusively.

Do catamarans have small interiors?

The size of an interior cabin on a boat is typically proportional to the size of the boat itself.  If a catamaran has above-deck cabins, they will likely be able to be of a larger design than those you would find on deck of a monohull boat.  This is because a catamaran has a much wider footprint than a monohull boat of the same length. This extra width would allow for larger on deck cabins.  

How much does a catamaran cost?

A personal watercraft (1-2 person) inflatable catamaran will run you anywhere from $1500-$12000 USD, depending on the quality and features.  The rigid hull catamarans of the same size start at about $4500 USD.

A small cabin cruiser type of catamaran will typically start at about $60000 for a small base model and the price just goes up and up depending on size and features.

For Instance, a 40’, 3 cabin with 1 washroom cat will cost you about $500,000 USD for the base model.  They are considerably more expensive that a monohull of the same length. However, the trade-off is greater stability and a smoother, more comfortable ride.

Is a catamaran more work to maintain?

Technically yes.  Due to having two hulls and if powered, two motors and likely also water jets, this means you have double the oil changes of a boat that would have a single motor.  Once you get past the basic engine and hull maintenance, a catamaran is not that much more work than a monohull ship of the same length.  

The trouble with catamarans in terms of maintenance, is that once they reach a certain length, the width becomes more than a standard lane on the road.  That being said, if you ever need to transport the boat via land, it can be quite the challenge. Especially if you need to pay to have a police escort for an extra-wide trailer.  And special licensing might be involved as well.

What is the difference between a catamaran and a trimaran?

A trimaran is shown in this photo.

A catamaran is a dual hull boat.  In other words, it has two hulls. A trimaran has three hulls.  

Is a catamaran considered a yacht?

According to Oxford dictionary, a yacht is a medium-sized sailboat equipped for cruising or racing.  A catamaran, on the other hand, is a boat with two hulls. Therefore, a catamaran can most certainly also be a yacht.  And likewise, if a yacht has two hulls, then it is a catamaran as well.

Can you get seasick on a catamaran?

Seasickness occurs when a person feels nauseous from the swaying motion of a rocking ship.  These feelings may be lessened on a catamaran, due to their extra stability. However, a catamaran may be slightly more stable than a monohull of the same length, but it is still a boat.  And it will still make someone who experiences seasickness continue to feel the ill effects.

Are catamarans more stable in rough seas?

Catamarans are known to be more stable than monohull ships of the same length.  This is why catamarans are often the ship type of choice for long sea voyages due to their stability.

Why do catamarans capsize?

Catamarans are not known for capsizing.  The larger vessels that is anyway. But, it does happen from time to time.  Catamarans are known for their stability, so typically if a capsize event should occur, it is typical for them to be extreme circumstances.  

Personal watercraft catamarans are a different story though.  These are in fact known for tipping over. Not because they are less stable than their monohull counterparts of the same length.  But instead, because they are able to go considerably faster than monohull personal watercraft of the same length (not including powered craft though).  This is due to the sailing cats being able to have a larger sail than a small monohull sailboat of the same length.

Due to the extra sail, they are able to travel faster than monohull sailboats of the same length.  This allows them to whip around on the water and at higher speeds, whipping your cat about quick can easily send it over sideways. Extra speed means fast turns carry momentum in the direction of travel and that extra speed equates to tipping over if turned too fast.  To sum up, they capsize due to user error or extreme events.

Which is safer, a catamaran or a monohull?

Due to the extra stability of having a wider footprint than a monohull, a catamaran of the same length is the safer vessel.

Are catamarans safer than sailboats?

The same rule applies to stability versus the length of the hull.  A cat will always be the more stable length for length. However, due to their ability to go much faster than a monohull sailboat, this kind of cancels out some of the added safety due to stability.  With that in mind, they may just be about the same but there is one generalization we can make when comparing the safety of catamarans vs sailboats: At the same speed, and of equal length, sailing or power catamaran will be safer than a monohull sailboat.

How fast can catamarans go?

The speed a catamaran can go is entirely dependent upon the hull design, weight of the vessel, the strength of propulsion (be it wind or powered) and so on.  The general rule is that in terms of sailing cats vs monohull sailboats, a cat of equal length can typically go faster than a sailboat.  

In terms of powered cats vs powerboats, a powered catamaran will typically require less energy to move forward than a monohull of the same sort of hull design (but monohull of course) and thus a cat should, in theory, be able to go faster than a monohull when both are using propulsion that is equal in power.

Bibliography

  • Wikipedia – Catamarans
  • Mahdi, Waruno (1999). “The Dispersal of Austronesian boat forms in the Indian Ocean”. In Blench, Roger; Spriggs, Matthew (eds.). Archaeology and Language III: Artefacts languages, and texts . One World Archaeology. 34 . Routledge. pp. 144–179. ISBN 0415100542 .
  • Wikipedia – Spearhead -class expeditionary fast transport
  • https://www.tiki-toki.com/timeline/entry/169516/Origin-of-the-catamaran/#vars!panel=1620923!
  • https://www.austal.com/ships/passenger-express-56
  • https://www.adventure-life.com/galapagos/galapagos-catamaran-cruises

Boating Gear

Take a look at our Recommended page for a variety of items. Here are some of the things you can expect:

  • GPS And Fish Trackers
  • Hitch And Trailer Supplies
  • Lifejackets And Specialty Clothing
  • Boating Books And More!

More From Boating Guide Magazine

Pontoon boat basics.

  • The Complete Runabout Boat & Trailer Towing Guide
  • Winterizing Your Boat
  • Boating Gear Requirements For Canada And USA Waters
  • Aluminum vs. Fiberglass Bass Boats
  • Better Boating At Night & How To Survive The Darkness
  • Staying Safe On A Catamaran: 24 Essential Tips
  • Can A Catamaran Capsize?
  • 4 Common Types Of Propulsion For Boats

Return To Home * About Boating Guide * About The Author

fakewatches.is

Share this post with your friends.

  • Tags: boat type , catamaran , catamaran basics , catamaran essentials , sailing

Subscribe to our Newsletter

Join us in our love for all things water. And Adventure.

A deck mounted custom outhouse is shown in this file photo.

Do Catamarans Have Bathrooms?

Heading out on the water for the weekend has its benefits, especially if you’re cruising in style on a catamaran. If you’re anything like me, you get excited about the adventure and sometimes forget to think of the obvious. Well, if you’re a man and you’re about to take your wife out on a catamaran for the first time, I bet one of the first questions she’ll ask is, ‘Does it have a washroom?”. And that is a perfectly reasonable question, especially if you intend to spend some decent time out on the water.

Boat Propeller Anti-Fouling Paint, Grease, And Tips by Boating.Guide

Boat Propeller Anti-Fouling Paint, Grease, And Awesome Tips

Boat Propeller Anti-Fouling Paint questions? You’re in the right place. Boat propellers often develop subaquatic organisms, hindering their performance and degrading their longevity. Antifoul paints and grease slow down the growth or detach these organisms. These products are available commercially, and their application is effortless. However, most people still ask for the best tips to

catamaran boat definition

When Is A Boat Called A Yacht? (Find Out Here – FAST)

When is a boat called a yacht? Let’s find out. The marine community interchangeably uses boats, ships, and yachts. Even though these watercraft mostly sound the same, there are distinct differences among the three. Boats can refer to watercraft ranging from personal vessels to something that can carry one or more passengers. Yachts sound more

Pontoon Boating Fun

Heading out to the lake? Well, there’s no better way to enjoy the day than from your pontoon boat. Imagine the fun you’ll have with family and friends cruising around in the sunshine. Even if you’re a novice, a pontoon boat is easy enough to maneuver.

A Snapshop Guide To Boat Buying

A Guide to Buying Boats for a Smooth Sailing Adventure Looking for the ideal boat can feel like an arduous adventure. To begin your boating journey, a boat must be suitable for your requirements in terms of the quantity and quality of its lodgings, speed, maneuverability, overall look, and affordability based on your budget.  Assuming

Catamaran vs. motor yacht explained at Boating.guide.

Catamaran Vs. Motor Yacht (4 Powerful Differences Explained)

The Catamaran Vs. motor yacht, a comparison that has lasted for ages, is one we will finally put to rest in this article. We promise to make spotting their differences easy.  Differences Distinguishing the Catamaran Vs. Motor Yacht At the end of this section, everything that distinguishes these two sailing boats from each other will

catamaran boat definition

Boat Information By Type

© 2023 Boating.Guide, A Hyperwave Media Group Ltd. Publication.

Privacy Overview

catamaran boat definition

What Is A Catamaran? Does It Have Engines Or Can It Only Sail?

catamaran boat definition

Catamarans are a type of boat that has two hulls connected by a platform. They offer many advantages over traditional monohull boats, including increased stability and improved speed. This article will explore what exactly catamarans are and how they can be powered. We’ll also look at the differences between sailing and motor-powered catamarans to help you decide which one is right for you.

What Is A Catamaran?

A catamaran is a type of boat with two hulls connected by beams. It is usually powered by sails, although all modern catamarans come with inboard motors for propulsion. Catamarans are traditionally used for sailing, fishing, and leisure activities . They can be used in both fresh and salt water, and their light weight allows them to travel at high speeds without using much fuel.

Catamarans are known for their stability and durability due to their wide beam and shallow draft. This makes them ideal for traversing shallow waters or areas where the sea is choppy and unpredictable. They also have the advantage of being able to turn quickly and maneuver easily in tight spaces. Additionally, they provide a smooth ride despite rough seas since the two hulls help to reduce wave impact on the boat itself.

Advantages Of Catamarans

Catamarans offer many advantages to sailors and other seafaring travelers. The primary benefit of catamarans is their stability, due to the fact that they have two hulls that are connected by a platform. This design makes them much more resistant to waves than monohull vessels, which makes them ideal for activities such as fishing or leisurely cruises near shore. Catamarans also tend to be lighter, faster and more fuel efficient than monohulls, making them an attractive choice for sportier outings such as racing or overnight trips. In addition, catamarans can either be powered by engines or sails, giving you the flexibility to choose whatever type of propulsion suits your needs best.

Types Of Catamarans

Catamarans come in a variety of shapes and sizes, from luxurious yachts to fast-moving racing boats. They offer a unique sailing experience, with their twin hulls providing stability and comfort while still able to reach high speeds. Catamarans can be powered by engines or sail, enabling them to move swiftly through the water. Some are designed for serious racing, while others are equipped for leisurely cruising on the open waters. With so many options available, there is sure to be a catamaran that will fit any sailor’s needs. Whether it’s speed or comfort that you’re after, a catamaran can provide an unforgettable experience on the seas.

Sailing Vs. Motor-Powered Catamarans

Catamarans offer many advantages over monohulls and have become a popular choice for many reasons.. They are lightweight, stable, and provide ample space onboard. However, there is one major decision to make when purchasing a catamaran: whether to choose a sailing or motor-powered version.

Sailing catamarans have the traditional look of a boat with two hulls and tall sails, while motor-powered catamarans come equipped with engines and resemble more of a powerboat. Both types of catamarans offer their own unique benefits and drawbacks. Sailing versions are cheaper to purchase but require the sailor to be knowledgeable in sailing tactics in order to navigate easily. Motor-powered versions are more expensive but can be easier to operate in certain conditions due to their greater speed and maneuverability. In the end, it comes down to personal preference as both types can provide an enjoyable experience on the water.

Benefits Of Chartering A Catamaran

Catamarans are a type of sailing vessel with two hulls that are connected with a frame. They are typically very stable and have plenty of deck space for passengers and amenities. Catamarans also come equipped with two engines, so they can travel in calm waters even when there’s no wind to power the sails. The engine also allows them to get back quickly against strong winds or tides, making them great for long trips and passages.

The major benefit of chartering a catamaran is the amount of space it provides compared to traditional monohulls (a boat with one hull). This makes them ideal for larger groups, as they can accommodate more people without feeling cramped. Additionally, catamarans offer great stability in the water – even in choppy conditions – allowing you to feel safe and secure while onboard. Plus, since they don’t require as much maintenance as other boats, they’re perfect for longer periods of time on the water. All these factors make catamarans a great choice for any travel vacation with friends and family.

Frequently Asked Questions

Are catamarans suitable for excursions.

Catamarans are a popular choice for those looking to charter one for an excursion due to their spaciousness and stability. They provide more than enough room for comfortable traveling as well as plenty of storage space, making them an ideal option for extended cruising. Additionally, all catamarans are equipped with engines, allowing for easy navigation and maneuverability when needed. All in all, catamarans make great vessels for vacations and traveling and can be a great way to explore the waters.

What Is The Best Type Of Catamaran For Ocean Voyaging?

When it comes to ocean voyaging, the best type of catamaran is a modern performance cruiser. These vessels are designed to combine speed and comfort, with a shallow draft for navigating in and out of shallow waters. Modern performance cruising catamarans feature two hulls connected by an open deck, often with engines that give them greater maneuverability. They also generally have larger living spaces than traditional monohulls, so they can provide more comfortable accommodations during long voyages.

How Many People Can Typically Fit On A Catamaran?

A catamaran is a type of boat with two parallel hulls. Depending on the size, it can typically fit anywhere from 4-12 people plus crew. It’s important to note that the number of passengers will depend on the size and design of the boat, so it’s best to check with a manufacturer for more specific details.

A catamaran is a great choice for those looking to explore the ocean in style. They’re spacious and versatile, making them suitable for all sorts of travel plans and excursions. Plus, they can be powered by either engines and/or sails, so you can decide which works best for your needs. Charter prices can vary depending on your vacation needs. All in all, a catamaran is an excellent choice for anyone wanting to explore the open seas!

If you’re considering renting a catamaran, it’s important to do some research first. There are many different kinds to choose from depending on what your entire party has on their travel wish list – and make sure that you have a safe and fun voyage!

Get a Quote

Are you ready to let us show you what we can do for you? We can’t wait! This is as exciting for us as it is for you. We began this business because we love putting the perfect yacht charter together for our clients and getting the best of the best at the right price point thanks to our contacts and experience. 

Use our quick contact form to give us the basics about what you’re looking for and we’ll send you ideas and pricing. Don’t worry if it’s not grand enough or should be scaled back; we’ll take care of that too. When you love the plan, we put it into action. All you have to do is show up and enjoy.

More Vacation Tips

catamaran boat definition

Why Canvas Yacht Charters is the Ultimate Way to Explore the Virgin Islands

catamaran boat definition

Vacation Better with Canvas Yacht Charters: Unlock the Ultimate Yachting Experience

catamaran boat definition

Top 5 Reasons to Choose a Yacht Charter in the Virgin Islands for Your Next Vacation

  • Dictionaries home
  • American English
  • Collocations
  • German-English
  • Grammar home
  • Practical English Usage
  • Learn & Practise Grammar (Beta)
  • Word Lists home
  • My Word Lists
  • Recent additions
  • Resources home
  • Text Checker

Definition of catamaran noun from the Oxford Advanced Learner's Dictionary

catamaran boat definition

What Is a Catamaran?

If you’re thinking of chartering a catamaran on your next trip, read through our guide and get up to speed on two hulled yachts! We offer Catamarans for charter in over 60 countries and the entire selection can be seen on our Catamaran charter page.

A Catamaran is a sail or engine-powered boat with a double hull, a distinct feature that makes it immediately recognizable once you're aware of the design. People often question whether a catamaran is a yacht, and due to the sleek style, versatility, speed capabilities, and comfort, a catamaran definitely earns the yacht stamp of approval. Due to these same characteristics, catamarans are becoming an increasingly popular choice among avid leisure and sport sailors.

The elegant and unique catamaran style isn't a new development - it's actually a centuries-old design that's been modified and built upon to become what it is today.

The first Catamaran was created in India, borrowing its modern name from the original Tamil word kattumaram, meaning "logs bound together". The first design was simply a raft made of tree trunks, built in the fishing communities of Tamil Nadu in southern India and used to invade several Southeast Asian countries as early as the 5th century. The kattumaram quickly became the favoured vessel style throughout Polynesia and Micronesia.

Evolved by American Nathanael Herreshoff in the 1870s and further developed in the 1950s, the catamaran concept really took off in the 20th century. It was soon functioning as a full-fledged yacht, able to compete in the racing arena with mono-hulled boats without compromising luxury. Nowadays, catamarans attract both sport and leisure boaters with its versatility, speed, and comfort.

catamaran boat definition

What are the Characteristics of a Catamaran Hull?

The most obvious characteristic of a catamaran is the twin hull, but there are more benefits to the cleverly crafted underside. When compared to a monohull yacht of the same size, the catamaran hull has several big advantages. Catamaran hulls are noted for having less volume, lighter displacement, and shallower draft (ie less of the boat is below water) when compared to monohull vessels. The shallow draft is especially appealing, allowing for use in shallow water and giving the captain the option to pull the boat right up to shore without worry.

Additionally, because of the hull design, catamarans boast a smaller hydrodynamic resistance, ultimately making them more economic since they don't need as much fuel to propel them forward. And for those sailors still strengthening their sea legs, the double hull increases the catamaran's overall balance and stability by reducing the amount of wave-induced motion. So long seasickness!

Catamarans have a lot of space. The living area in between the two hulls offers a dining and lounging area as well as a spacious kitchen. You also find outside lounging areas at the back and in the front of the yacht. The various places to relax mean a lot of privacy on board. The two hulls further increase the privacy aspect because the cabins are separated by the central living area and each hull has their separate entrance in most cases. This makes the Catamaran the ideal yacht to charter for two couples, two families, a group of friends or a large family. The cabins in the hulls are spacious and comfortable and their sizes vary with the exact Catamaran model.

So in summary, catamarans:

  • have two hulls, usually connected by a bridgedeck
  • can be sailed in shallow water
  • use less fuel, because they have low hydrodynamic resistance
  • tend to be very stable
  • have a lot of space for dining and lounging and preparing food
  • offer greater privacy than monohull yachts

To give you an idea of the space and amenities on board a Catamaran, do have a look at the many pictures of our Fountain Pajot Alegria 67 for charter in the British Virgin Islands .

How to Sail a Catamaran

You're sold on the idea of a catamaran, but now comes the question, how hard is it to sail a catamaran? Learning how to sail a catamaran is relatively straight forward if you're already trained in the basics of sailing. Although it does differ from monohull vessels, the idea is the same. Be prepared to tweak your sail trimming skills and get used to the difference in motion (or lack thereof) with the catamaran.

The catamaran is gaining popularity because the better-balanced hull and twin engines make it arguably easier to operate than a monohull yacht. Fluid maneuverability means that even one person can sail a catamaran as long as they've built up enough sail experience. Still, it's never a bad idea to get some formal training; the ASA and RYA both offer catamaran sailing courses to help enhance your skills.

How Fast Can a Catamaran Sail?

Catamaran's can cruise! Their speed is just another reason why the boat has become so sought-after in recent years. A sailing catamaran can typically perform 25% - 30% faster than a monohull of the same size.

So just how fast can they go? Cats average about 10 knots with top speeds reaching around 15 knots. Just keep your weight in mind - catamarans respond sensitively to heavy loads and will perform slower if overweight.

catamaran boat definition

Why Charter a Catamaran?

When compared to a monohull boat of the same size, a catamaran has a tendency to be a bit more expensive to charter. However, your trip itinerary might require certain criteria that make spending a bit more worth it. For example, the flat plane and stability of a catamaran are ideally suited for a family to enjoy their holidays in a lot of comfort. It is also ideal for a scuba diving holiday , allowing divers to gear up and enter/exit the water with ease. Additionally, big parties usually find catamarans better suited for their needs in terms of deck space and overall comfort.

A Catamaran is the ideal yacht for a relaxing vacation as it boasts a lot of space, stability and living spaces - it truly is your floating hotel. But note that a catamaran holiday does not need to break the bank and is very affordable in comparison to a vacation in a hotel or a villa depending on the type and size of a catamaran you decide to go for. 

***************************

Catamarans are a fun alternative to the traditional sailing yacht and the value for money is unrivalled for a yacht holiay. They provide comfort, flexibility and a lot of space to spend your time on the sea. You can also check out this Comprehensive guide to chartering a yacht for more information.

Curious? Check out Boataffair's huge choice of catamarans to charter in the world's most sought after destinations.

  • Frequently asked questions
  • Yachts for Charter
  • Experiences
  • E-Gift cerificates
  • Browse yachts by type
  • Terms of Use
  • Privacy Policy
  • Terms of Use E-Gift Card
  • Boataffair AG
  • Schuetzenstrasse 43
  • 5454 Bellikon
  • Switzerland
  • Send a message
  • [email protected]
  • +41 78 612 29 19
  • Rating: 5.0 / 5.0 Average from 180 reviews
  • See our customer reviews

CYBA

What is a sailing Catamaran and its advantages in navigation

What is a catamaran and how has it revolutionized the sailing experience? Catamarans, boats with two parallel hulls, have transformed sailing with their numerous advantages. Thanks to their design, they provide a more stable and safe navigation in various maritime conditions. These types of vessels stand out for being more efficient, consuming less fuel due to their aerodynamic structure. Furthermore, their spacious interior and greater height offer unparalleled comfort to passengers. With a reduced draft, catamarans have the ability to venture into shallow waters, expanding exploration possibilities. Their extensive flotation surface facilitates maneuvers, and their prolonged lifespan, combined with their commitment to the environment, has cemented their popularity in recent times. Now that you know what a catamaran is, let’s look at its advantages.

Advantages of the catamaran in sailing

Stability and safety at sea.

Catamarans guarantee extraordinarily stable and safe navigation thanks to their two parallel hulls. This unique structure allows them to remain firm in the water, ensuring a smooth journey, even when the sea becomes stormy. Both hulls work in harmony to balance the weight of the vessel, minimizing the chances of capsizing and abrupt movements. This additional stability is a hallmark for sailors, whether on extended voyages or maneuvers in ports.

Efficiency and reduced fuel consumption

The efficiency of catamarans in sailing is undeniable. Their twin-hull design minimizes water resistance, maximizing aerodynamics. This allows the vessel to harness more wind energy, translating into significantly lower fuel consumption compared to single-hull boats. This efficiency is not only beneficial for the wallet but is also an ecological advantage by reducing harmful gas emissions.

Spacious living space on board

Catamarans are synonymous with space and comfort. Their twin-hull design provides larger interiors compared to single-hulls, offering more spacious resting areas, cabins, and salons. This translates into a more pleasant and comfortable sailing experience during extended voyages. Additionally, the extra height in the design offers a feeling of openness, creating brighter and more airy environments.

Design features and flotation of a catamaran

A catamaran’s design is characterized by having two parallel hulls, which provides a series of distinctive advantages in terms of flotation and stability compared to traditional single-hulls. Next, we’ll highlight the main features of this innovative design.

Two parallel hulls design

The revolutionary design of the catamaran with two parallel hulls offers unique advantages in terms of flotation and stability. This structure allows for more balanced navigation, preventing abrupt movements and providing a more pleasant journey. Moreover, their reduced draft allows access to shallow water areas, opening a range of exploration possibilities. The extensive flotation surface facilitates maneuvers, allowing precise turns even in adverse conditions.

Reduced draft and access to shallow waters

Traveling on a catamaran is an unparalleled experience. The feeling of space, breadth, and comfort surpasses that of any conventional vessel. This comfort extends from the spacious lounges to the cabins, providing a perfect environment to relax and enjoy the journey. Additionally, the robustness of their design ensures a longer lifespan and superior resistance to ocean forces.

Flotation surface and ease of maneuvering

Catamarans are equipped with a larger flotation surface compared to single-hulls. This feature translates into greater stability and maneuverability, making navigation in confined spaces, such as narrow ports or docks, easier. Additionally, the distribution of flotation across the two hulls provides a greater sense of balance and control during navigation. Catamarans are agile and can make more precise turns, proving especially useful when maneuvering in adverse wind or current conditions.

Sailing experience on a sailing catamaran

Comfort and spacious interior ambiance.

One of the main advantages of sailing on a catamaran is the extensive comfort and spacious ambiance it offers inside. Thanks to their design with two parallel hulls, catamarans provide a much larger living space compared to traditional single-hulls. Passengers can enjoy a feeling of spaciousness and freedom, with more room to move and relax during the voyage.

Moreover, the greater free height inside the catamaran creates a more open and bright environment, providing a more comfortable sailing experience for all crew members. Whether you’re enjoying the living room, preparing a delicious meal in the kitchen, or resting in the cabins, there’s more space available to enjoy on board.

Longer lifespan and structural resistance

Sailing catamarans offer a longer lifespan compared to other vessels due to their structural design. Having two hulls separated by a rigid platform reduces the risk of long-term structural damage. This means that catamarans can better withstand the forces of the sea and maintain their integrity over a longer period.

In addition, the design of catamarans allows them to “cut” through waves rather than “dance” over them, reducing wear on the hull and propulsion systems. This, combined with robust construction and high-quality materials, contributes to greater resistance and durability in the water.

Respect for the environment and growing popularity

The popularity of catamarans has grown in part due to their sustainable design. Being more efficient and consuming less fuel, they have a lower environmental impact, making them the perfect choice for those environmentally conscious. The growing concern for the health of our oceans has led to increased demand for vessels like the catamaran, which combines a superior sailing experience with ecological commitment.

Furthermore, the rising awareness of the importance of preserving the oceans and reducing the ecological footprint has generated greater interest in environmentally-friendly vessels, such as sailing catamarans. More and more people are looking to enjoy sailing without compromising the health of our marine ecosystems, leading to a surge in the popularity and demand for sailing catamarans worldwide.

Now that we’ve told you everything you need to know about this incredible vessel, it’s worth noting that we have two catamarans. Following historical tradition, they each have their own names, “Attraction” and “Inspiration”. Come and meet them in Palma de Mallorca.

[email protected]

  • Legal notice and privacy policy
  • Cookies policy
  • General terms and conditions

catamaran boat definition

LAST DAYS, LIMITED OFFER

10% off on sea day & sunset.

Muelle Office Avda. Gabriel Roca, 13 bajos Palma de Mallorca (07014) Balearic Islands, Spain

Opening At 9:00 to 20:00 hours

Phone +34 971 746 101 +34 675 263 206

Email [email protected]

catamaran boat definition

Catamaran vs. Trimaran: The Differences Explained

catamaran boat definition

As an Amazon Associate, we earn from qualifying purchases. We may also earn commissions if you purchase products from other retailers after clicking on a link from our site.

Most boat lovers know the differences between a catamaran and a monohull. But when it comes to differentiating between a catamaran and a trimaran, things can get tricky because it’s not always clear how much difference the extra hull of a trimaran makes in performance, safety, comfort, and handling. If you’re trying to choose between the two, this is a post you’ll want to read before making a decision.

Besides the number of hulls catamarans(two) and trimarans(three) differ in speed, safety, accommodation, helming, and anchoring. Generally, catamarans are more manageable in a marina and provide better accommodation and comfort. Trimarans, on the other hand, are faster and more fun to helm.

In this post, we’ll cover these differences in greater detail to make it easier for you to choose between a catamaran and a trimaran. First, let’s quickly review each multihull type.

Table of Contents

The Lowdown on Catamarans

Informally dubbed a “cat,” a catamaran is a type of multi-hulled sailing craft with two equal-sized parallel hulls. Cats are typically geometry-stabilized, leveraging their wide beams for stability. That’s unlike monohull boats, which use ballasted keels for stability. Catamarans also have a smaller displacement, lower hull volume, and a much shallower draught ( draft ) than similarly sized monohulls.

The earliest forms of catamarans can be traced way back to the 17th century. They were primarily used for fishing by the Pavaras community in Tamil Nadu, who preferred them over other fishing vessels due to the extra balance and stability provided by the twin hulls. Later on, the British adopted the concept of twin-hulled boats and popularized it worldwide.

Modern catamarans are much more sophisticated than their ancestors. They’ve evolved in terms of the usage versatility, construction, and design, giving rise to two primary configurations:

  • Small-Waterplane-Area Twin Hull (SWATH)
  • Wave-piercing catamarans

The hulls in a catamaran with a SWATH configuration are typically submerged. That means they’re less affected by ocean waves , which is great for stability when sailing in rough waters. In the recent past, SWATH configurations have been used on research vessels and rescue ships. 

Their wave-piercing counterparts, on the other hand, have low-buoyancy bows fitted on the twin hulls. The bows allow the hulls to puncture ocean waves instead of riding over them, making catamarans with such a design faster on rough waters than SWATH cats. In the recent past, wave-piercing cat designs have been used on passenger ferries, military vessels, and yachts.

catamaran boat definition

The Lowdown on Trimarans

Also known as a double-outrigger, a trimaran is a type of multihull boat with one main hull flanked by two smaller “floats” (technically known as outrigger hulls) connected to the larger hull by lateral beams. Such a design makes trimarans incredibly stable, meaning they’re hard to capsize even in the roughest of waters. 

The earliest forms of trimarans can be traced to the Austronesian people and are still the most common hull design you’ll find on traditional fishing boats in Maritime Southeast Asia. The majority of today’s double outriggers are yachts meant for racing and recreation, but some warships and ferries have this design.

catamaran boat definition

The Differences Between Catamarans and Trimarans 

The most apparent physical distinction between a catamaran and a trimaran is that it has three hulls instead of two. 

But other than that, are there other differences between the two vessel types you need to know? Do those differences make one type better than the other?

To find out, let’s compare the two types of multihulls based on the following merits:

Comfort and Accommodation

A Cat’s geometry is ideal for comfort and accommodation. The two load-bearing hulls provide additional habitable space, and you can always create a sizable nacelle between them. Connected to this central living space is a large cockpit, and there are cabins on either end of the hulls. This arrangement is perfect when you’re looking to relax a bit as the party rages on in the saloon because it gives you a bit of privacy. 

And with flybridges virtually standard on modern catamarans, you have extra space for entertainment and lounging. The deck area is safe for kids, and the fact that catamarans don’t heel much means that you can do things like cooking at ease. Also worth mentioning is that cats can carry a decent load, meaning you can stock up on food and gear when going away for an extended period.

While trimarans do provide a decent degree of livability, they fall short of catamarans in two regards. First, they heel more than cats, making it difficult to do things like cooking on board. Second, they support much less load than catamarans. To put things into perspective, some 45 feet (14 meters). Cats can carry nearly three tons of payloads, whereas similarly sized trimarans can barely support half that load.

Overall, catamarans provide better, more comfortable accommodation than trimarans.

catamaran boat definition

One of the main concerns when choosing any water vessel is how easy it’ll capsize in the event of a storm. If you’re looking to spend more than just a couple of hours on the water, you want to sail on something that won’t capsize/sink easily because sea conditions can sometimes fluctuate within a short period.

When it comes to safety, three hulls are better than two. Having one main hull and two overhangs on each side makes a trimaran more stable because of two reasons. First, the side overhangs widen the beam of the vessel, which minimizes the chances of the boat flipping over when hit by a large breaking wave from the side. Second, trimarans are typically designed with the weight centered on the main hull, further enhancing stability. 

Multihull stability is a complex topic and should be understood in detail if you want to stay safe at sea!

  • Why do catamarans capsize?

On the rare occasion that a trimaran flips over, it’ll stay afloat. That means if the worst happens, a capsized trimaran will turn into a potential life-saving raft that’s easier to spot from a helicopter. That’s because almost all trimarans designed in the last decade or so come with closed-cell foam distributed throughout the various parts of the boat to provide reserve buoyancy. 

Thanks to this kind of construction, you could cut most trimarans into pieces, and each would still stay afloat.

While catamarans are typically more stable than monohulls, they’re no match for a trimaran in this regard. Hypothetically speaking, it would be easier to tip over a catamaran than a trimaran if both boat types were subjected to equal magnitude storms. That, however, doesn’t mean that catamarans aren’t safe. They’re still harder to flip over than monohulls and will stay afloat when that happens because they come with the same closed-cell foam found in a trimaran.

While on the subject of safety, it’s worth mentioning that trimarans require less vigilance as far as reefing is concerned . Since catamarans heel less, most of the extra wind force translates to more “push” on the rig, increasing speed. But because the pressure exerted on the sail nearly quadruples when the wind speed doubles, you need to be extremely careful when timing your reef to keep a cat sailing flat. 

The same goes for reefing a trimaran, except that the slight heel gives you more room for error in terms of the timing.

catamaran boat definition

Most people who’ve ever steered both a trimaran and catamaran will agree that the former is more fun to sail. Most light trimarans, especially tiller-steered ones, have a terrific response to the helm. They have a slight heel that somewhat feels like a monohull, but the angle is a bit limited.

A catamaran is stable, but it doesn’t heel. While heeling may be frowned upon by people who prioritize comfort and accommodation in a boat, it’s one of the most exciting parts of sailing. With three hulls to ensure stability, trimarans combine the heel of a monohull with a catamaran’s stability to deliver the best sailing elements of monohulls and multihulls in a single package.  

Considering that trimarans are more stable, you may be better off with one if you’re looking to have some fun as you perfect your helming skills.

Speed is another area where trimarans outperform their twin-hulled counterparts. Typically lighter than catamarans, trimarans need less sail distance to hit double-digit speed averages. A trimaran can maintain a formidable course up-wind when fitted with centerboards/daggerboards (as is often the case for modern models).

While a catamaran is still faster than a monohull of identical size, it falls short of the trimaran in terms of sheer speed. Understand that this doesn’t make catamarans slow boats; it’s just that tris are typically designed with more emphasis on performance.

Why are Trimarans Faster Than Catamarans?

Trimarans are easier to anchor than catamarans because they allow you to keep the ground tackle in and deploy it from the main hull. 

However, catamarans are more maneuverable and manageable in a marina. They also handle docking lines more conveniently.

Catamarans vs. Trimaran: The Verdict

In summary, here’s what the differences between a cat and tri mean for anyone trying to choose between the two: A catamaran is a better choice if you’re looking to accommodate many people on board for something like a party because it’s more spacious and comfortable than a trimaran. On the other hand, a trimaran is an ideal choice for speed junkies and individuals looking to push their sailing skills to the next level on every stable platform.

Hopefully, that has cleared the air and made it easier for you to pick a more suitable option for your sailing needs.

  • ResearchGate: A comparison of the motions of trimarans, catamarans and monohulls | Request PDF
  • Why are trimarans faster than catamarans?

Owner of CatamaranFreedom.com. A minimalist that has lived in a caravan in Sweden, 35ft Monohull in the Bahamas, and right now in his self-built Van. He just started the next adventure, to circumnavigate the world on a Catamaran!

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Save my name and email in this browser for the next time I comment.

Recent Posts

Must-Have Boat Gear for Catamaran Sailors!

Sailing is probably the most gear-intensive activity I've ever done; there are so many decisions to be made about what gear to buy now, for tomorrow, and what to definitely never buy. The gear on...

6 Best Trailerable Trimarans For Bluewater and Coastal Sailing

Having a boat costs a lot of money, even when you are not using it, marina fees, etc. And once it is in the water most sailors never go very far from their "home marina" and sailing will be somewhat...

Catamaran Definition and Examples

catamaran boat definition

Get the worlds most accurate marine weather forecasts.

1M+ USERS / 8K RATINGS

PredictWind App

Accurate marine forecasts for free.

Over 1 million marine users trust PredictWind to deliver accurate and reliable weather forecasts. Get started for free to experience the difference.

local knowledge on phone

IMAGES

  1. Catamaran

    catamaran boat definition

  2. Catamaran Boats

    catamaran boat definition

  3. What is yacht and what is a catamaran?

    catamaran boat definition

  4. Yacht Sunreef 88DD, Sunreef Luxury Catamaran

    catamaran boat definition

  5. Types Of Catamaran Sailboats

    catamaran boat definition

  6. What is a Catamaran Boat and What are the Benefits?

    catamaran boat definition

VIDEO

  1. fast catamaran boat

  2. How to Pronounce catamaran

  3. 10m Catamaran Cabin Boat #catamaran #america #cat #seaboat #ocean #boats #boatforsale #aluminumboat

  4. 🎥 Ep. 9 Buying a Catamaran May Have Been A Huge Mistake

  5. Masoola boat Meaning

  6. Catamaran Boat Riding @Santorini Island(Greece) last part with audio

COMMENTS

  1. Catamaran

    A catamaran (/ ˌkætəməˈræn /) (informally, a "cat") is a watercraft with two parallel hulls of equal size. The distance between a catamaran's hulls imparts resistance to rolling and overturning. Catamarans typically have less hull volume, smaller displacement, and shallower draft (draught) than monohulls of comparable length.

  2. Catamaran Definition & Meaning

    The meaning of CATAMARAN is a vessel (such as a sailboat) with twin hulls and usually a deck or superstructure connecting the hulls.

  3. What Is A Catamaran? Definition, Types, Advantages, And Uses

    Definition of a Catamaran Dual Hull Design. A catamaran is a type of boat that features a dual hull design. Unlike traditional boats that have a single hull, a catamaran consists of two parallel hulls that are connected by a deck or platform. This unique design offers several over monohull boats, including increased stability, speed, and ...

  4. Catamaran

    catamaran, twin-hulled sailing and powered boat developed for sport and recreation in the second half of the 20th century. Its design is based on a raft of two logs bridged by planks that had earlier been used by peoples in the Indonesian archipelago and throughout Polynesia and Micronesia. Early catamarans were up to 21.3 metres (70 feet) long ...

  5. Catamarans: A Complete Guide to Multihull Boats

    Catamarans are known for their unique design, which features two parallel hulls connected by a deck. This design provides several advantages over traditional monohull boats, such as stability and speed. With their wide beam, catamarans have a reduced risk of capsizing and can access shallow waters due to their shallow drafts 1.

  6. What Is A Catamaran Sailboat? (And What It Looks Like)

    A catamaran is a twin-hull boat with two equally-sized hulls placed side by side. They're powered by engines, sails, or both—and they're known for efficiency and speed. Catamarans are the most common kind of multihull boat. In this article, we'll go over the characteristics of catamarans and how to differentiate them from other types of ...

  7. What Is A Catamaran Boat? (A Comprehensive Guide)

    A catamaran boat is a type of vessel with two parallel hulls of equal size. It is typically used for leisure, sport and racing. Catamarans are known for their stability and speed in a variety of water conditions. They are also known for their shallow draft, making them a great choice for cruising in shallow waters.

  8. CATAMARAN Definition & Meaning

    Catamaran definition: a vessel, usually propelled by sail, formed of two hulls or floats held side by side by a frame above them.. See examples of CATAMARAN used in a sentence.

  9. CATAMARAN

    CATAMARAN definition: 1. a sailing boat that has two parallel hulls (= floating parts) held together by a single deck…. Learn more.

  10. CATAMARAN

    CATAMARAN meaning: 1. a sailing boat that has two parallel hulls (= floating parts) held together by a single deck…. Learn more.

  11. Catamaran

    A catamaran (from Tamil kattumaram) is a type of multihulled boat or ship consisting of two hulls, or Vakas, joined by a frame, formed of Akas.Catamarans can be sail- or engine-powered. The catamaran was first discovered being used by the paravas, a fishing community in the southern coast of Tamil Nadu, India.Catamarans were used by the ancient Tamil Chola dynasty as early as the fifth century ...

  12. A Complete Catamaran Guide

    A catamaran is a design for a boat that utilizes two hulls. Due to the flat, platform-like-potential for the deck of the boat, the catamaran is often purposed with transporting materials, vehicles, and people. For instance, catamarans are quite often used as ferries.

  13. What Is A Catamaran? Does It Have Engines Or Can It Only Sail?

    A catamaran is a type of boat with two parallel hulls. Depending on the size, it can typically fit anywhere from 4-12 people plus crew. It's important to note that the number of passengers will depend on the size and design of the boat, so it's best to check with a manufacturer for more specific details.

  14. What Are Catamarans And Their History?

    Catamarans are boats with two connected hulls that are joined by a bridge. Because they are faster, more stable, and capable of carrying larger cargo than their monohull counterparts, catamarans are growing in popularity. Contents show As a result, designers and owners have greater freedom to accommodate space needs in terms of size and ...

  15. Guide To Catamaran Boats: Cruising The Seas In Splendor!

    A catamaran boat is a type of watercraft that features two parallel hulls connected by a deck or platform. This design provides stability, speed, and efficiency on the water, making it a popular choice for various purposes such as leisure cruising, racing, fishing, or even luxury yachting. Catamarans have been around for centuries but have ...

  16. Catamaran

    A catamaran is a type of sailboat with two hulls that are parallel to each other and are joined by the deck.

  17. catamaran noun

    Definition of catamaran noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. ... a fast sailing boat with two hulls compare trimaran Topics Transport by water c2, Sports: water sports c2. Word Origin early 17th cent.: ...

  18. What is a Catamaran?

    A Catamaran is a sail or engine-powered boat with a double hull, a distinct feature that makes it immediately recognizable once you're aware of the design. People often question whether a catamaran is a yacht, and due to the sleek style, versatility, speed capabilities, and comfort, a catamaran definitely earns the yacht stamp of approval.

  19. What is a sailing Catamaran and its advantages in navigation

    Catamarans are agile and can make more precise turns, proving especially useful when maneuvering in adverse wind or current conditions. Sailing experience on a sailing catamaran Comfort and spacious interior ambiance. One of the main advantages of sailing on a catamaran is the extensive comfort and spacious ambiance it offers inside.

  20. Catamarans Guide: The ABCs of Multihull Boats

    Some people think of any multihull boat as a catamaran, but in strict terms a catamaran is a boat with two hulls. A boat with one hull is a monohull and a boat with three hulls is a trimaran. Pontoon boats can be either catamarans or trimarans (sometimes called tri-toons), but can be differentiated from most other multihulls in that their hulls ...

  21. Catamaran Definition & Meaning

    catamaran (noun) catamaran /ˌkætəmə ˈ ræn/ noun. plural catamarans. Britannica Dictionary definition of CATAMARAN. [count] : a boat with two hulls — see picture at boat. About Us & Legal Info. Partner Program.

  22. Catamaran vs. Trimaran: The Differences Explained

    First, they heel more than cats, making it difficult to do things like cooking on board. Second, they support much less load than catamarans. To put things into perspective, some 45 feet (14 meters). Cats can carry nearly three tons of payloads, whereas similarly sized trimarans can barely support half that load.

  23. Catamaran Definition and Examples

    Understanding Catamarans: Cost, Purpose, Design, and Amenities ... Catamaran Definition and Examples. Understanding Catamarans: Cost, Purpose, Design, and Amenities. Table of Contents. What Are Catamarans and How Much Do They Cost? ... [kat-uh-muh-ran] A type of boat with two parallel hulls of equal size. Understanding the Hull: The Heart of ...