42.5m superyacht adastra

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• Boat of the Week: Inside ‘Adastra,’ the Bonkers, Rule-Breaking Trimaran That Has Crisscrossed the Globe

The 140-foot "Adastra"'s triple hulls, light weight and shallow draft gives it exceptional seaworthiness and range. Plus, it looks super cool.

Miriam cain, miriam cain's most recent stories.

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Adastra , or to the stars , as the poet Virgil once said, is not your average superyacht . With its striking spaceship profile, it might look like a concept. Delivered in 2012, this 140-footer has spent nearly a decade exploring the globe.

“We have been lucky enough to spend at least three months on board every year since the build, crossing the Atlantic and Pacific Oceans, and exploring the more traditional cruising grounds of the Mediterranean and Caribbean,” the owner, requesting anonymity, told Robb Report . “ Adastra is a truly stable and safe oceangoing yacht.” It also happens to be one of the most innovative vessels on the water.

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British designer John Shuttleworth has won multiple awards, not to mention nonstop praise, for Adastra . What sets the boat apart are its unusual trio of silver hulls that resemble an outrigger canoe. “The structure is a major engineering achievement,” says Shuttleworth in a video describing the design. “Nobody had ever designed or built a boat like that.”

This one-off design maximizes interior space but has a minimal eco-footprint compared to other yachts its size.  Courtesy Burgess Yachts

Built by McConaghy Boats in Zhuhai, China, the custom design went through structural analysis, while a computer model of Adastra was tested for wave impact, slamming and the potential durability of the outriggers running through big seas. Constructed from e-glass and Kevlar, these hulls are mated to a carbon-fiber superstructure, so the boat weighs only 49 tons, or the equivalent weight of a 60-foot conventional yacht. Since weight reduction was critical to the trimaran’s performance, McConaghy custom-designed all the components—hatches, port lights, ladders and hinges—to be made of carbon fiber. This lightweight design delivers hydrodynamic efficiency, stability and performance, as well as low fuel consumption and low environmental impact. “It uses a seventh of the amount of fuel” of conventional motor yachts its size,” said Shuttleworth.

“Our hope at the time was that the design would represent consciousness of the environmental issues facing the world, while also giving impetus to changing attitudes towards reducing carbon emissions and fossil fuel consumption,” Shuttleworth told Robb Report .

Adastra has weathered 50-knot storms and boasts a vast 10,000-nautical mile range at 10 knots. Powered by a single 1,150 hp Caterpillar C18 engine, the boat’s top speed is 23 knots, with a friendly cruise of 17 knots. Adastra also has two 110-hp Yanmar outrigger engines to power the three onboard generators. For transoceanic crossings, the two 800-gph water makers keep the 730-gal. freshwater tanks full.

The design team used its curves and natural light to full effect, with the minimalist, Scandinavian-themed interior.  Courtesy Burgess Yachts

Adastra ’s 3.9-foot draft can get into shallow areas that more traditional yachts can’t access, making her ideal for shallow-water areas like the Bahamas. The yacht also has a custom anchoring system, with three anchors that deploy across the bow, stern and along the main hull.

Despite its eco credentials, Adastra is still very much a luxury yacht. With the main hull flared over the water for additional space, the exterior layout allows guests to enjoy several secluded areas and superb communal spaces. The Scandinavian-influenced interior by Jepsen Designs, is minimalist and dominated by the natural light flowing in from curved, wraparound windows and skylights, highlighting the honey-colored woods and neutral color palette of the open-plan living areas. Adastra was designed for nine guests and up to six crew. The full-beam master cabin is aft, connected directly to the main salon, while two guest cabins and the galley are located near the engine compartment.

Adastra ’s 52.5-foot beam features a spacious aft deck with lounges and a sheltered alfresco dining area, while forward of the main salon, guests can relax on the roomy foredeck, with its large sunbed. The yacht’s garage door folds out to create a diving platform.

The open plan gives the sense of being outdoors, especially with the skylights.  Courtesy Burgess Yachts

Adastra is currently listed through Burgess Yachts for $10 million. Here are more images.

Courtesy Burgess Yachts

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The future of superyachts is here with Adastra

Look at 42.5m trimaran superyacht Adastra by McConaghy Boats and you see the future – not only of yacht design but also of the industry itself. Her performance and development have global aspects: she has a range of 10,000 nautical miles and was designed in Britain for expatriate owners, who live in Hong Kong, to cruise Indonesia and the world. The interior was designed by a Dane who happens to be the first female commodore of the Royal Hong Kong Yacht Club, and the entire vessel was built in China at a yard owned and managed by Australians. Yet Adastra is not extreme for extreme’s sake.

Her owner, Anto Marden, spent many years in the shipping business and has sailed all over Southeast Asia in his 13.7 metre trimaran Mazinga, designed by John Shuttleworth . He has extensive knowledge of these boats and the stability of their form, and has known Shuttleworth for some 30 years.

About eight years ago, Marden began thinking of a larger yacht with global range. For such a journey he wanted something faster than a sailing boat, and sought an oceangoing powerboat capable of a steady 16 to 18 knots in the open sea and a range of 4,000 nautical miles at 17 knots.

‘The owner had four key requirements for the design of his large power trimaran,’ Shuttleworth says, ‘offshore seaworthiness, comfort, economy of operation and shallow draught.’ The interior was to complement the modern exterior shape and reflect the family’s Asian home. Primarily, it would cruise with just the Mardens aboard plus crew, but two additional cabins were planned to accommodate occasional guests. ‘He clearly wanted a sexy boat with wow factor.’

Focusing on economical range, it would have to be as light and easily driven as possible. Both aerodynamics and hydrodynamics had to be considered, and the exterior would have to be smooth to reduce friction from water passing over the structure. As Shuttleworth, now assisted by his two sons, Orion and Sky, developed ideas, they became convinced that to meet the brief, the vessel’s skin also would have to form part of the torsional strength – a sort of monocoque approach. In the 1980s, Shuttleworth had come up with the concept of what he calls ‘integrated structure.’ This results in boats that are lighter, stiffer, stronger and less likely to twist than previous multihull designs, an arena in which Shuttleworth excels.

Unlike round-the-world speed-record boats with collapsible pipe berths, Adastra would require good load-carrying capacity to provide for luxurious accommodations. Whereas most trimaran outriggers skim the water, her outriggers were expected to be continually immersed as she cut through the waves. Although this increases drag over the skimming type by about eight per cent, it greatly decreases rolling and increases stability. The crossbeam needed to be higher above the water to reduce any impact and noise caused by slamming.

To make the structure as light as possible, the vessel would have to be built in composites, as would much of the interior, but this allowed the design of the flowing shapes that define the futuristic appearance. And to achieve very low fuel consumption, every element was scrutinised. If there was a lighter way to achieve the required function, it was sourced or built from scratch.

This kind of effort required a builder who would collaborate, and Marden and Shuttleworth turned to Mark Evans, co-owner of the Australian shipyard McConaghy Boats. McConaghy, which has been in business for 45 years, has an outstanding reputation for building performance sailing boats, including renowned maxis such as Wild Oats X and Wild Oats XI , Moneypenny and all three Alfa Romeos . The yard also has turned out Whitbread and Volvo Ocean Race racers and has great expertise in carbon fibre.

The yacht’s deck and superstructure are constructed of carbon fibre with a carbon/Nomex honeycomb core, while the hull is an e-glass/Kevlar foam sandwich. Core thickness varies from 20 to 40 millimetres. All the structures were resin infused to ensure high quality and reduce weight. The interior is oak veneer over honeycomb. The most dramatic weight savings, according to Evans, came from changing the makeup of the upper structure from foam/e-glass to carbon/Nomex. ‘It halved the weight of the core and I would guess saved us 200 to 300 kilos,’ he says. The result of all this effort, says Shuttleworth, is that Adastra displaced operates with light ship displacement of 52 tonnes.

‘Throughout the design process, we gave careful consideration to ergonomics and how the boat would be used by the owner and her crew,’ says Orion Shuttleworth. ‘What was particularly challenging was this design was the first of her kind. We had to anticipate problems and find practical solutions.’ This creative approach was recognised at the 2013 World Superyacht Awards, where Adastra won the Most Innovative Yacht prize, and at the ShowBoats Design Awards with an award for naval architecture and a judges’ commendation for exterior styling.

‘The fantastically low weight, along with her easily driven exterior, has resulted in one of the, if not the, most fuel-efficient superyachts ever,’ says Shuttleworth. At light load, the yacht burns 4.5 gallons of fuel an hour to cruise at 10.5 knots, which gives a range of 10,000 nautical miles. At 17 knots she uses 98 litres an hour and has a range of 4,000 nautical miles. Her top speed, delivered by one 1,150hp Caterpillar C18 engine, is 23.2 knots.

‘Although the owner did not require the vessel to be classed, we chose to use the LY2 Code as a guide for safety and fittings. In cases where this was not practical, we developed creative solutions to provide safe alternatives,’ says Orion Shuttleworth.

The large wraparound saloon windows were a structural challenge but they helped the designers lengthen the exterior lines. They also create fantastic views and an atrium effect inside.

Integral to the yacht’s development was adding Danish-born Inge Strompf-Jepsen to the team. Operating an architectural design company in Hong Kong, she mixes Scandinavian style with Asian influences. The idea of exposing the curved carbon-fibre beams running through the deckhead of the saloon to save weight was seen as a positive by Strompf-Jepsen, who thinks the exposed structure gives the feeling of being inside the ribcage of a whale.

The spacious saloon of Adastra is almost circular in shape and offers superb views to those in the lounging and dining areas. A door through the windscreen allows access to a large foredeck sunbed that can be shaded with an awning suspended from carbon-fibre poles set into the deck. The main helm station, which has two seats on a plinth that give a view over the cabin top, is in a raised pilothouse between the saloon and the aft deck. Hatches in the overhead provide ventilation but also allow the helmsman to put his head out for a 360-degree view when docking.

To minimise the helm station’s intrusion on the saloon, it is housed in a wineglass-shaped structure that forms an interesting architectural feature. Behind this is the shaded cockpit, which has an undulating sofa to port and, to starboard, a dining table tucked within the structure of the main hull, the supports for the pilothouse and the rigid bimini top. This covered aft deck on Adastra can be enclosed with a set of sliding side covers.

The open deck running aft provides stowage for a 4.8 metre tender that is launched with a removable carbon-fibre davit. A second three metre tender is stowed alongside a freezer in the garage below the aft deck, which has a door that hinges out to create a bathing platform.

Accommodation on this superyacht is for nine guests and six crew. The master cabin, with access from the deck saloon, is aft in a section of the main hull that flares above the waterline, while the guest cabins are forward of the engine room. Further forward are the crew cabins and galley.

Interior materials are limited to light honey oak and semi-gloss white paint with occasional brushed stainless-steel trim. The soft contrast of the surfaces is augmented by white woven fabrics and blue-and-white ikat fabrics collected by Elaine Marden in Indonesia.

The sponsons can be reached via steps sculpted into the support wings. They look like louvers on a sports car, and from some angles they almost disappear from view. Removable rails fit into the aft edge of the wings and there are fixed handholds. Liferafts slot into quick-release bins on the back edge of the wings.

‘ Adastra takes the power trimaran concept further than has ever been attempted before,’ Shuttleworth says. ‘The challenge of turning this concept into a viable luxury yacht that meets the needs of a very experienced ocean-voyaging couple and their family has led us to develop new thinking on stability, very low fuel consumption and comfort at sea for this type of craft.’

Jepsen Designs; King Fung/Hong Kong Tatler; Guy Nowell; Orion Shuttleworth; and Jochen Manz

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ADASTRA Yacht – Exquisite Craftsmanship $10M Superyacht

The ADASTRA yacht is a 42.5-meter unique superyacht built by McConaghy Boats for Hong Kong-based shipping baron Anto Marden in Zhu Hai, China.

She was named after the Latin ‘Ad Astra’ meaning “to the stars” which is truly fitting for a superyacht with a design that is ahead of our times.

She was the product of a five-year collaboration between her owner, naval architects/exterior designer John Shuttleworth Design Ltd , interior designer Jepson Designs, and the shipyard which resulted in a masterpiece. 

The ADASTRA yacht is a stunning trimaran boat with exceptional seakeeping capabilities, elegant accommodations, and minimal fuel usage.

For these reasons and more, she received the 2013 World Superyacht Award for most innovative design. 

ADASTRA yacht interior

Jepsen Designs’ minimalist Scandinavian-inspired design is dominated by natural light streaming in through curving, wraparound windows, and skylights, accentuating the honey-colored timbers and neutral color palette of the open-plan living rooms. 

Adastra can accommodate up to nine guests and six crew members.

The full-beam master suite is aft, directly attached to the main salon, while the galley and two guest rooms are located near the engine compartment.

Specifications

The ADASTRA yacht has a 10,000-nautical-mile range at 10 knots, a top speed of 23 knots, and a comfortable cruise speed of 17 knots. 

She is powered by a single 1,150 horsepower Caterpillar C18 engine and is equipped with two 110-hp Yanmar outrigger engines to power the three onboard generators and two 800-gph water makers to keep the 730-gallon freshwater tanks filled during transoceanic journeys.

Her 3.9-foot draft allows her to approach shallow areas that other yachts cannot, thus making her suitable for shallow-water destinations such as the Bahamas.

She also boasts a unique anchoring mechanism that deploys across the bow, stern, and main hull.

The ADASTRA yacht’s futuristic exterior was penned by Shuttleworth Yacht Designs and features a striking silver design and an unusual trio of hulls that turn heads wherever she goes.

She was built with four key requirements – offshore seaworthiness, comfort, the economy of operation, and a shallow draft.

ADASTRA yacht’s impressive structure is made of carbon fiber with a Nomex honeycomb core, while her three hulls are made from an e-glass and Kevlar foam sandwich. 

Her foredeck boasts of a large sunbed that can be shaded with an awning suspended from carbon-fiber poles set into the deck. 

Accommodation

The ADASTRA yacht has a capacity of 9 passengers and up to 6 crew members. 

The accommodation is located on the lower deck while the two guest cabins, crew accommodation, and the galley are located near the engine compartment.

There is additional space below the deck thanks to the flared center hull, which is above the waterline.

The main deck is home to a saloon, which has a lounge space, dining table, and navigation station, among other things. 

The sunbed is located on the foredeck, while the aft deck contains a lounge and bar area, as well as a dining table and chairs.

Between the saloon and the aft, there is a raised platform with seating.

In the center of this platform lies the pilothouse, which contains the primary helm station that has seating for only two people.

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Adastra Specifications

• Name Adastra
• Model Custom
• Hull Colour Adastra
• Naval Architect John Shuttleworth Yacht Designs Ltd.
• Exterior Designer John Shuttleworth Yacht Designs Ltd.
• Interior Designer Jepsen Designs
• Length Overall 42.5m
• Length at Waterline -
• Draft (min) -
• Draft (max) 1.6m
• Gross Tonnage -
• Cabins Total 4
• Hull Configuration Trimaran
• Hull Material Aluminium
• Superstructure -
• Deck Material -
• Fuel Type Diesel
• Manufacturer Caterpillar Inc / Yanmar
• Power 1260 hp / 940 kW
• Total Power 1260 hp / 940 kW
• Propulsion Triple Screw
• Max Speed 22 Kn
• Cruising Speed 17 Kn
• Fuel Capacity 32000
• Water Capacity 2700
• Generator -
• Stabilizers -
• Thrusters -
• Amenities -
• Yacht Builder McConaghy Boats View profile
• Naval Architect John Shuttleworth Yacht Designs Ltd. No profile available
• Exterior Designer John Shuttleworth Yacht Designs Ltd. No profile available
• Interior Designer Jepsen Designs No profile available

Yacht Specs

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Superyacht Trimaran Adastra For Sale!

42.5m adastra for sale.

Adastra was launched in 2012 and is now listed for sale by her original owner. Having extensively cruised the world over, from far-flung Indonesia islands to Mediterranean superyacht hotspots, this trimaran’s capabilities and seaworthiness have been more than proven. See more details  for Adastra on our website. 

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Privacy Overview

Superyacht Adastra

42.5m ocean explorer trimaran.

On winning the 2013 Showboats award for naval architecture, Boat International stated. "this yacht will have the best performance in the most sea states of all those presented" . To find out more about the award winning naval architecture used in these designs read the article "Adastra - The search for a seakindly fuel efficient vessel". Read more.

Her slender hulls and streamlined exterior allow her to travel faster in the open ocean and at 17 knots she has a 4,000nm range so can comfortably cross both the Atlantic and Pacific oceans at hi-speed. Measurements taken during the sea trials show that her fuel consumption at 10.5 knots is as low as 17 litres per hour when carrying 10% fuel and water. At cruising load (20 tonnes fuel and water) she uses just 25 litres per hour therefore on delivery trips her range is 10,000nm starting with 30,000 litres of fuel.

Adastra takes the power trimaran concept further than has ever been attempted before, previous vessels like Earthrace and Cable and Wireless were stripped out record breaking machines. The challenge of turning this concept into a viable luxury yacht has led us to further research and develop new thinking on stability and comfort at sea for this type of craft. Extensive tank testing and radio controlled model tests in waves have been carried out to analyse stability and performance. Outrigger height has been optimised for ease of motion at sea, and a new outrigger shape has been developed to increase stability in waves.

We have undertaken state of the art structural analysis of all the major components in the yacht in order to achieve the light weight required for very low fuel consumption. The deck and superstructure is constructed from carbon fibre with Nomex honeycomb core, the hull is glass/kevlar foam sandwich and the interior is lightweight oak cabinetry using honeycomb panels. To help reduce weight further, virtually every aspect of the boat is custom built. This includes carbon fibre hatches, toilets, portlights and ladders, which are all built specifically for the vessel.

Aerodynamics and hydrodynamics above the water line were carefully considered as we developed the overall exterior shape and we kept the boat streamlined both for air and water passing over the structure. The smooth seamless, unbroken surfaces also help to reduce weight as the outer-skin forms part of the structure to absorb torsional loads.

Adastra in the Philippines

Photographs by Jochen Manz.

Adastra in Malaysia

Photographs by Orion Shuttleworth.

Adastra Exterior Details

Adastra in Hong Kong

Adastra Launched

After 4 years in build by McConaghy boats in Zhuhai China, the fuel efficient 42.5 m Trimaran Adastra was launched into the Pearl River on 11th April 2012.

Design Team

From left Orion, John, and Sky Shuttleworth

Exterior Renderings

Interior Renderings

Interior Images

Under construction

Adastra under construction in McConaghy yard Zhuhai China

The images and content on this site are copyright. No content or images from this site should be reproduced without the permission of John Shuttleworth Yacht Designs Ltd.

Exterior Deck

Adastra's 16 metre beam creates a spacious saloon area on the main deck which offers superb views through a panoramic window and accommodates a lounge area, dining table and navigation station.

Extra space has been created below deck by slightly flaring the central hull just above the waterline. This area has been split into two sections with a full-width master cabin located aft with access from the deck saloon, and two further guest cabins, accommodation for the crew, and the galley located forward of the engine compartment. Adastra offers comfortable accommodation for nine guests and up to six crew members.

Wheelhouse Deck

The main helm station, which has seating for two, is positioned in a raised pilot house situated between the aft deck and the saloon area and forms part of the cross beam structure.

The vessel's profile has been kept low to reduce the vertical centre of gravity and improve stabilty in waves. The overall shape has been kept streamlined to optimise aerodynamics and hydrodynamics above the water line and the smooth unbroken surfaces help to reduce weight as the outer-skin forms part of the structure to absorb torsional loads.

Adastra Technical data

• Specification
• Fuel Consumption Charts
• Length Overall 42.5m
• Draft 1.12 m (1.6m to tip of rudder)
• Displacement light 52 tonnes
• Displacement cruising max (15,000 litres fuel) 67.6 tonnes
• Fuel Capacity 30,000 litres
• Hull Construction Composite (Glass/Aramid/Foam)
• Deck Construction Composite (Carbon/Nomex)
• Performance
• Speed Max 23.2 knots
• Speed cruising 17 knots
• Range at 10.5 knots 10,000nm
• Range at 17 knots 4,000nm
• Accommodation and Tenders
• Owner and Guests 9
• Tenders 4.9m and 3.1m RIBS
• Main engine 1x Caterpillar C18 1150 hp @ 2300 rpm
• Outrigger engines 2 x Yanmar 110hp @ 3200 rpm
• Generators 2 x 36 kw and 1x 26 kw
• Fuel Consumption
• Fuel consumption 10.5 knots - 20 tonnes fuel and water 25 litres per hour
• Fuel consumption 10.5 knots - 3 tonnes fuel and water 17 litres per hour
• Fuel consumption 13 knots - 20 tonnes fuel and water 60 litres per hour
• Fuel consumption 13 knots - 3 tonnes fuel and water 40 litres per hour
• Fuel consumption 17 knots - 20 tonnes fuel and water 130 litres per hour
• Design and Build
• Exterior Styling Shuttleworth Design Ltd
• Naval Architecture Shuttleworth Design Ltd
• Structural Design Shuttleworth Design Ltd & ASTA Ltd
• Interior Styling Jepsen Design
• Builder McConaghy Boats, China

42m Adastra Vs a Selection of Other Typical 42m Vessels

42m Adastra Vs a Typical 25m Planing Monohul

Shuttleworth Design Ltd Gurnard Isle of Wight UK

• Race Results
• Owners' Comments
• Safety at Sea

42.5m trimaran yacht Adastra ashore

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Written by Zuzana Bednarova

This image is featured as part of the article 42.5m McConaghy trimaran yacht ADASTRA successfully launched .

Please contact CharterWorld - the luxury yacht charter specialist - for more on superyacht news item "42.5m trimaran yacht Adastra ashore".

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Adastra Superyacht, Zhuhai

Adastra is a trimaran-type superyacht built by McConaghy Boats for Hong Kong-based shipping baron Anto Marden. It has been designed by John Shuttleworth Yacht Designs.

Project Type

Trimaran type superyacht

42.5m (140ft)

4,000 nautical miles

Hong Kong-based businessman Anto Marden

McConaghy Boats, China

Naval Architect

John Shuttleworth Yacht Designs, UK

Exterior Styling

John Shuttleworth Yacht Designs and Orion Shuttleworth Design

Structural Design

John Shuttleworth Yacht Designs and Applied Structural Analysis

Interior Design

Jepsen Designs, Hong Kong

Adastra is a trimaran-type superyacht built by McConaghy Boats for Hong Kong-based shipping baron Anto Marden. The 42.5m (140ft) superyacht was designed by UK-based John Shuttleworth Yacht Designs.

McConaghy Boats built the superyacht at its establishment in Zhuhai, China. Adastra was launched in April 2012 in the Pearl River is reported to have cost $15m. The superyacht is used by its owners to travel between the two Indonesian islands that they own.

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The luxury trimaran yacht received 2013 World Superyacht Award for most innovative design and was listed for sale in 2019.

Power trimaran concept and superstructure materials of Adastra

The superyacht is based on a power trimaran concept. The designers incorporated luxury into the trimaran design to make it suitable for ocean voyaging.

Structural analysis was undertaken for all the components of the ship. A computer model of Adastra was tested for wave impact, side slamming and impact of the outrigger riding through waves.

The superstructure of the luxury yacht is made of carbon fibre with a Nomex honeycomb core. The hull is of resin infused epoxy with E-glass and Kevlar skins. The interior is composed of carbon and E-glass honeycomb panels and oak veneered cabinets.

The beam of the ship is 16m and the hull draft is 1.12m. It weighs 52t and has a range of 4,000nm.

The naval architect of the superyacht was John Shuttleworth Yacht Designs. Exterior styling was done by John Shuttleworth Yacht Designs and Orion Shuttleworth Design, while the structural design was by John Shuttleworth Yacht Designs and Applied Structural Analysis. Adastra’s interiors were designed by Jepsen Designs, of Hong Kong.

Construction of the lightweight superyacht by McConaghy Boats

McConaghy has built the components of Adastra to custom design to reduce its weight. The in-house built components include fibre hatches, portlights, ladders and hinges, all made of carbon.

More than 350 craftsmen, designers and engineers of McConaghy in both China and Australia worked on the construction of the yacht. The outrigger of the superyacht was specially designed by optimising its height, allowing easier movement on the waves.

Performance of the unique fuel-efficient Adastra yacht

Adastra was designed to be lightweight for low fuel consumption. The superyacht has a maximum speed of 22.5k and its range at 17k is 4,000 miles.

A SiMON 2 integrated ship surveillance system monitors fuel, security, pump sensors, electrical and lighting systems of the ship.

With a freshwater capacity of 2,700l, Adastra has two 800gph freshwater makers. The vessel’s displacement (light) is 49t while at maximum cruising (with 15,000l fuel) it is 64.8t. The yacht consumes 90l an hour at a speed of 13k and 120l each hour at 17k.

Accommodation and luxury features of Anto Marden’s superyacht

Adastra can accommodate nine guests and up to six crew. The accommodation is provided on the below deck, which is partitioned into two sections. The master cabin is located aft.

Two guest cabins, crew accommodation and the galley are located near the engine compartment. The central hull has been flared above the waterline to create some additional space on the below deck.

The main deck houses a saloon which encompassed a lounge area, dining table and navigation station. It provides views of the ocean through a window. The saloon is directly accessible from the master cabin.

The sunbed is on the foredeck while the aft deck has a sofa and bar area and a dining area. There is a raised platform between the saloon and the aft. The pilot house, accommodating the main helm station, is situated on this platform. The station has seating for two.

Tenders on board Adastra

Adastra can accommodate two tenders. A 4.9m space is made available on the aft deck for a tender. A garage below the deck can shelter a 3.1m tender. The fold-out design of the garage door provides diving space.

Engines fitted and anchor system of the Adastra trimaran superyacht

Adastra has a single Caterpillar C18-1150hp engine at 2,300rpm and two Yanmar 110hp outrigger engines rated at 3,200rpm. Two 36kW generators are linked to the outrigger engines and one 26kW generator is installed in the main engine room.

The anchoring system of Adastra comprises three anchors. The 130kg Bruce style primary anchor is deployed out of the starboard wing. The 80kg second anchor is deployed out of the bow with an arm. The third is a stern anchor and weighs 60kg. It is deployed out of the port wing.

The anchors are driven on hydraulics-run winches. The carbon-fibre winches and anchor arms were custom-built. The arms fold inside the yacht, thus remaining invisible.

The vessel features an Alfa Laval fuel cleaning system for cleaning the engine.

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superyacht adastra by john shuttleworth yacht designs

‘adastra’ by john shuttleworth yacht designs

 all images courtesy orion shuttleworth

‘adastra’ is a 42.5m power trimaran which was conceived for a couple (anto and elaine marden) for long range cruising. the yacht uses a trimaran shape that allows it to have multiple hulls. this is the second largest of its kind and can be controlled from a distance with an iPad. the superyacht’s aerodynamics and hydrodynamics were carefully considered by john shuttleworth yacht designs who have drafted a streamlined exterior body whose three hulls are slender in form. their shape ensures smooth and faster travel, allowing the vessel to move comfortably over water at hi-speeds, as is evidenced by its performance–fuel consumption at 10.5 knots is as low as 17 litres per hour when carrying 10% fuel and water; at cruising load (20 tonnes fuel and water) she uses only 25 litres per hour so that on delivery trips;her range is 10,000 miles starting with 30,000 litres of fuel; at 17 knots she has a 4,000 mile range.

an intense structural analysis of all of the major components of ‘adastra’ were taken to achieve the lightest weight possible required  to establish its low-fuel consumption. structurally this has been realized through a deck and superstructure made from carbon fibre, with a nomex honey comb core. the hull is a sandwich composition of glass and kevlar foam, while the interior is oak framework with cabinetry completed by honeycomb panels. in addition, all aspects of the boat have been custom built accordingly to further reduce the overall volume as seen for example in the carbon fibre hatches. the luxury boat’s surface is a composition of seamless, unbroken surfaces, this outer skin forming part of the framework that absorbs torsional loads.

a 16m long beam results in an expansive main deck offering panoramic views with a lounge area, dining table and navigation station. a forward facing door through the saloon window allows for easy access to the sun bed located on the foredeck. the afterdeck has additional seating as well as a bar, and space for a 4.9 metre tender with a garage directly below which can house a 3.1 metre tender, and whose door has been designed to fold out and function as a large diving platform.

the deck is constructed with carbon fiber with a nomex honeycomb core and the huss is a kevlar/glass combination. the interior is a beautiful lightweight oak design mixed with honeycomb panels. all of this keeps the weight down so the yacht can travel faster and longer. the yacht launched in april 2012.

side viewimage courtesy of orion shuttleworth

the exterior skin forms a structure that absorbs torsional loadsimage courtesy of orion shuttleworth

rear viewimage courtesy of orion shuttleworth

specifications:

LOA: 42.5 m beam: 16 m hull draft: 1.12 m (1.6m to tip of rudder) main engine: 1x caterpillar c18 -1150 hp @ 2300 rpm outrigger engines: 2x yanmar 110hp @ 3200 rpm generators: 2 x 36 kw custom in the outriggers linked to 110 hp yanmar engines, and 1x 26 kw northern lights in main engine room owner and guest capacity: 9 crew: 5-6 tenders: 4.9m stored on the aft deck and a 3.1m stored in the garage freshwater capacity: 2x 800 gph fresh water makers – 2,700 litres water displacement light: fully equipped and full stores and crew, no fuel and no water – 52 tonnes displacement cruising max: (normal operational load) 15,000 litres fuel – 67.6 tonnes fuel capacity max: 30,000 litres fuel (only for occasional long ocean passages) speed max: 23.2 knots fuel consumption at 10.5 knots measured – 25 litres/hour with 20 tonnes fuel and water; measured 17 litres/hr with 3 tonnes fuel and water; range at 10.5 knots 10,000 miles fuel consumption at 13 knots measured – 60 litres/hour with 20 tonnes fuel and watermeasured 40 litres/hr with 3 tonnes fuel and water fuel consumption at 17 knots measured – 130 litres/hour with 20 tonnes fuel and water; measured 100 litres/hr with 3 tonnes fuel and water;range at 17 knots 4,000 miles. exterior styling: john shuttleworth yacht designs ltd. and orion shuttleworth design ltd. naval architecture: john shuttleworth yacht designs ltd. structural design: john shuttleworth yacht designs ltd. & applied structural analysis ltd. interior design: jepsen designs, hong kong builder: mcconaghy boats, zhuhai, china

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Kemerovo Oblast, Russia

The capital city of Kemerovo oblast: Kemerovo .

Kemerovo Oblast - Overview

Kemerovo Oblast is a federal subject of Russia located in the south-east of Western Siberia, part of the Siberian Federal District. This region is also known as Kuzbass . In 2019, “Kuzbass” officially became the second name of Kemerovo Oblast. Kemerovo is the capital city of the region.

The population of Kemerovo Oblast is about 2,604,300 (2022), the area - 95,725 sq. km.

Kemerovo oblast flag

Kemerovo oblast coat of arms.

Kemerovo oblast map, Russia

Kemerovo oblast latest news and posts from our blog:.

11 February, 2019 / Kemerovo - the view from above .

21 April, 2016 / The carnival-parade at the festival GrelkaFest in Sheregesh .

2 June, 2013 / Summer snowfall in Kemerovo .

9 February, 2012 / "BelAZ 75600" - the biggest truck in the former USSR .

31 October, 2010 / The ship-house in Kemerovo oblast .

History of Kemerovo Oblast

People began to settle in what is now the Kemerovo region several thousand years ago. The indigenous peoples of the region were Shortsy and Teleuts. In 1618, Russians founded Kuznetsky stockaded town in the south of the present region to protect Russian lands from the raids of the Mongols and Jungars. In 1698, Mariinsk was founded.

In 1721, Mikhailo Volkov found “burning mountain” (a burning coal seam) on the banks of the Tom River and thus became the person who discovered the Kuzbass coal deposits. Industrial development of this land started at the end of the 18th century.

During the 19th century, the territory of the Kemerovo region was part of the Tomsk province. During this period, the first industrial enterprises appeared here: Tomsk ironworks, Gavrilovsky and Gurievsky silver plants, Suharinsky and Salairsky mines. Construction of the Trans-Siberian Railway was one of the main reasons for the rapid development of the local industry.

More historical facts…

In Soviet times, the region became part of the West Siberian krai, and then - Novosibirsk oblast. The development of the coal, metallurgical and chemical industries continued: Kemerovo Coke Plant, Kuznetsk Metallurgical Plant, a lot of new mines. The workers’ settlements built near the industrial enterprises quickly obtained the status of towns: Kiselyovsk, Osinniki, Krasnobrodsky, Tashtagol, Kaltan, Mezhdurechensk and others.

During the Second World War, this region was a major supplier of coal and metal. More than 50 thousand tanks and 45 thousand aircraft were produced using steel from Novokuznetsk. 71 industrial enterprises were evacuated to Kuzbass from the occupied regions, most of them remained in the region after the war.

In 1943, Kemerovo Oblast became a separate region that included 17.5% of the territory and 42% of the total population of Novosibirsk Oblast. After the war, the region continued to grow rapidly. On September 18, 1984, about 100 km from Kemerovo, a peaceful underground nuclear explosion was carried out, the power of the explosive device was 10 kilotons.

In the 1990s, the region’s economy declined. However, by the end of the 20th century, there were some positive developments - the development of the coal industry in the first place. Special attention was paid to the development of open-pit coal mining, as a more effective and safe way.

Beautiful nature of Kemerovo Oblast

Mountain stream in the Kemerovo region

Author: Sergey Timofeev

On the shore of a small lake in Kemerovo Oblast

Kemerovo Oblast landscape

Kemerovo Oblast - Features

Kemerovo Oblast is one of the few Russian regions that has a recognized and well-known alternative name “Kuzbass” - the abbreviation of “Kuznetsk coal basin” occupying a large part of the territory of the region.

It is the most densely populated part of Siberia. The length of the region from north to south is about 500 km, from west to east - 300 km. Russians make up more than 90% of the population. There are small nations of Shortsy, Teleuts, Siberian Tatars who have preserved their cultural traditions.

The climate is sharply continental with long cold winters and warm short summers. The average temperature in January is minus 17-20 degrees Celsius, in July - plus 17-18 degrees Celsius.

Today, about 86% of the population of Kemerovo Oblast lives in cities and towns making it one of the most urbanized regions of Russia. The largest cities are Kemerovo (548,000), Novokuznetsk (540,000), Prokopievsk (185,000), Mezhdurechensk (95,400), Leninsk-Kuznetsky (91,600), Kisilyovsk (83,700), Yurga (79,700), Belovo (70,100), Anzhero-Sudzhensk (65,700).

Sheregesh, a village located at the foot of Zelenaya Mountain in Tashtagol district, is one of Russia’s most popular ski resorts. The ski season lasts from November to May. Kuznetsky Alatau Reserve and Shorsky National Park are the main natural attractions.

Kemerovo Oblast plays a significant role in Russian industry. The following mineral resources are mined here: coal, gold, silver, iron ore, manganese ore, aluminum, nepheline ore, lead, zinc, barite, quartz, limestone, clay, dolomite, sand.

Kuznetsk coal basin is one of the largest coal basins in the world. The most important centers of the local coal industry are Prokopyevsk, Mezhdurechensk, Belovo, Kemerovo, Novokuznetsk, Osinniki, Leninsk-Kuznetsky. Coal mines can be found almost everywhere in the Kemerovo region. About 180 million tons of coal is mined annually.

Rail transport is well developed in the region. The Trans-Siberian Railway, the South Kuzbas branch of West Siberian Railway cross its territory. There are large airports in Kemerovo (Kemerovo International Airport) and Novokuznetsk (Spichenkovo Airport).

Kemerovo oblast of Russia photos

Pictures of kemerovo oblast.

Kemerovo Oblast scenery

Author: Sergey Ustuzhanin

Autumn in Kemerovo Oblast

Winter in Kemerovo Oblast

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Orthodox church in Kemerovo Oblast

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Church in the Kemerovo region

Author: Ludmila Boriskina

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