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  • Sailboat Guide

Sigma 400 is a 40 ′ 3 ″ / 12.3 m monohull sailboat designed by Rob Humphreys and built by Marine Projects Ltd starting in 1990.

Rig and Sails

Auxilary power, accomodations, calculations.

The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more.

Classic hull speed formula:

Hull Speed = 1.34 x √LWL

Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio .311 Hull Speed = Max Speed/Length ratio x √LWL

Sail Area / Displacement Ratio

A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more.

SA/D = SA ÷ (D ÷ 64) 2/3

  • SA : Sail area in square feet, derived by adding the mainsail area to 100% of the foretriangle area (the lateral area above the deck between the mast and the forestay).
  • D : Displacement in pounds.

Ballast / Displacement Ratio

A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize.

Ballast / Displacement * 100

Displacement / Length Ratio

A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more.

D/L = (D ÷ 2240) ÷ (0.01 x LWL)³

  • D: Displacement of the boat in pounds.
  • LWL: Waterline length in feet

Comfort Ratio

This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more.

Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam 1.33 )

  • D: Displacement of the boat in pounds
  • LOA: Length overall in feet
  • Beam: Width of boat at the widest point in feet

Capsize Screening Formula

This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more.

CSV = Beam ÷ ³√(D / 64)

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  • About Sailboat Guide

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The Sigma 400 is a 40.27ft masthead sloop designed by Rob Humphreys and built in fiberglass by Marine Projects since 1990.

The Sigma 400 is a moderate weight sailboat which is a good performer. It is stable / stiff and has a good righting capability if capsized. It is best suited as a coastal cruiser.

Sigma 400 sailboat under sail

Sigma 400 for sale elsewhere on the web:

sigma 400 sailboat

Main features

Model Sigma 400
Length 40.27 ft
Beam 12.76 ft
Draft 7.50 ft
Country United Kingdom (Europe)
Estimated price $ 0 ??

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sigma 400 sailboat

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Sail area / displ. 18.79
Ballast / displ. 37.13 %
Displ. / length 229.09
Comfort ratio 27.92
Capsize 1.92
Hull type Monohull fin keel with spade rudder
Construction Fiberglass
Waterline length 33.33 ft
Maximum draft 7.50 ft
Displacement 19000 lbs
Ballast 7055 lbs
Hull speed 7.74 knots

sigma 400 sailboat

We help you build your own hydraulic steering system - Lecomble & Schmitt

Rigging Masthead Sloop
Sail area (100%) 833 sq.ft
Air draft 0 ft ??
Sail area fore 348.22 sq.ft
Sail area main 484.70 sq.ft
I 49.01 ft
J 14.21 ft
P 51.84 ft
E 18.70 ft
Nb engines 1
Total power 34 HP
Fuel capacity 0 gals

Accommodations

Water capacity 0 gals
Headroom 0 ft
Nb of cabins 0
Nb of berths 0
Nb heads 0

Builder data

Builder Marine Projects
Designer Rob Humphreys
First built 1990
Last built 0 ??
Number built 0 ??

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Review of Sigma 400

Basic specs..

The hull is made of fibreglass. Generally, a hull made of fibreglass requires only a minimum of maintenance during the sailing season.

The boat equipped with a masthead rig. The advantage of a masthead rig is its simplicity and the fact that a given sail area - compared with a fractional rig - can be carried lower and thus with less heeling moment.

The Sigma 400 is equipped with a fin keel. The fin keel is the most common keel and provides splendid manoeuvrability. The downside is that it has less directional stability than a long keel.

The keel is made of lead. Compared with iron, lead has the advantage of being 44% heavier, which allows a smaller keel and hence less water resistance and higher speed.

The boat can only enter major marinas as the draft is about 2.28 - 2.38 meter (7.48 - 7.78 ft) dependent on the load. See immersion rate below.

The boat is typically equipped with an inboard Perkins Prima diesel engine at 34 hp (25 kW).

Sailing characteristics

This section covers widely used rules of thumb to describe the sailing characteristics. Please note that even though the calculations are correct, the interpretation of the results might not be valid for extreme boats.

What is Theoretical Maximum Hull Speed?

The theoretical maximal speed of a displacement boat of this length is 7.7 knots. The term "Theoretical Maximum Hull Speed" is widely used even though a boat can sail faster. The term shall be interpreted as above the theoretical speed a great additional power is necessary for a small gain in speed.

The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for Sigma 400 is about 261 kg/cm, alternatively 1466 lbs/inch. Meaning: if you load 261 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 1466 lbs cargo on the boat it will sink 1 inch.

Sailing statistics

This section is statistical comparison with similar boats of the same category. The basis of the following statistical computations is our unique database with more than 26,000 different boat types and 350,000 data points.

What is L/B (Length Beam Ratio)?

What is a Ballast Ratio?

Maintenance

When buying anti-fouling bottom paint, it's nice to know how much to buy. The surface of the wet bottom is about 47m 2 (505 ft 2 ). Based on this, your favourite maritime shop can tell you the quantity you need.

Are your sails worn out? You might find your next sail here: Sails for Sale

If you need to renew parts of your running rig and is not quite sure of the dimensions, you may find the estimates computed below useful.

UsageLengthDiameter
Mainsail halyard 40.8 m(133.9 feet)12 mm(1/2 inch)
Jib/genoa halyard40.8 m(133.9 feet)12 mm(1/2 inch)
Spinnaker halyard40.8 m(133.9 feet)12 mm(1/2 inch)
Jib sheet 12.3 m(40.3 feet)14 mm(0.55 inch)
Genoa sheet12.3 m(40.3 feet)14 mm(0.55 inch)
Mainsheet 30.7 m(100.6 feet)14 mm(0.55 inch)
Spinnaker sheet27.0 m(88.6 feet)14 mm(0.55 inch)
Cunningham5.7 m(18.7 feet)12 mm(1/2 inch)
Kickingstrap11.4 m(37.4 feet)12 mm(1/2 inch)
Clew-outhaul11.4 m(37.4 feet)12 mm(1/2 inch)

This section is reserved boat owner's modifications, improvements, etc. Here you might find (or contribute with) inspiration for your boat.

Do you have changes/improvements you would like to share? Upload a photo and describe what you have done.

We are always looking for new photos. If you can contribute with photos for Sigma 400 it would be a great help.

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Sigma 400 - Sailboat Data, Parts & Rigging

Sigma 400 - Mainsail Covers

Sailboat data, rig dimensions and recommended sail areas for Sigma 400 sailboat. Tech info about rigging, halyards, sheets, mainsail covers and more.

Sailboat Data directory for over 8,000 sailboat designs and manufacturers. Direct access to halyards lengths, recommended sail areas, mainsail cover styles, standing rigging fittings, and lots more for all cruising and racing sailboats.

MAURIPRO Sailing offers a full range of sailboat and sailing information to help you find the correct sailboat part, one that properly would fit your sailboat and sailing style. Our sailor's and sailboat owner support team are ready to talk with you about your specific sailing needs, coming regatta, or next sailing adventure.

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  • Boat REF#  ·  155537
  • Length  ·  12.17m
  • Year  ·  1993
  • Construction  ·  GRP
  • Underwater profile  ·  Fin
  • Sleeping berths  ·  8
  • Engine  ·  1 x diesel 34hp, Vetus M34 (2008)
  • Lying  ·  Portsmouth Harbour

Boatshed Portsmouth

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  • Specification
  • Additional Information

Extra Details

Designer Rob Humphreys
Builder Marine Projects
Lying Portsmouth Harbour
Fuel capacity 100.0 ltr (22.0 USG) Total - 1 Tanks
Water capacity 454.0 ltr (99.9 USG) Total - 2 Tanks
Last survey 01/06/2006
Engine 1 x diesel 34hp
Engine make and model Vetus M34 (2008)
Engine Hours Not Recorded
Engine Cooled Indirect
Steering wheel
Drive shaft
Prop(s) Kiwi 3 blade
Fuel consumption (approx) 1.5 ltr (0.3 USG) /hour At Cruising Speed
Cruising speed (approx) 6 knots
Max speed (approx) 7.5 knots

Sailing speed of 7.5 standard plus 200 miles per day is a regular occurrence. New gearbox fitted October 2012, new PSS stern seal 2010. 80 Amp engine start battery 2009 2 x 110 Amp hour batteries wired in parralell for domestic

Length 12.17m
LWL 10.03m
Beam 3.89m
Draft Max 2.30m
Airdraft 20.00m
Displacement 7,500kg (16,537.5lbs)
Headroom 1.83m
Storage On marina

Sloop rigged Selden Aluminium spars (2007) with Dyform standing rigging (2007)

Reefing mainsail Kemp - Slab (2008) 3 Reefs
Headsail Kemp - Furling (2008)
Other sails Racing Genoa, Pentex, Hyde Sails, roller reefing (2011)
Heavy weather racing jib, Pentex, Hyde Sails, (2011)
Second cruising genoa, roller-reefing ()
Racing Assymetric with logo Hyde (2009)
Heavy Spinnaker, Quantum ()
Light Spinnaker, Quantum ()
Spinnaker gear

Boom, Mast, Standing Rigging and Harken MK1V furling gear replaced 2007 along with 1 genoa halyard. 1 spinnaker and 2nd halyard have all been replaced since 2006. All halyards and racing sheets are Dyneema. All clutches replaced 2009. Carbon spinnaker pole tube replaced 2011. Aluminium spinnaker pole, Aluminium Selden bow sprit. Both mainsails have had leech blocks fitted to first two reefing points to make it easier. Additional sail to list above : Racing Main, Dyneema reinforced dacron Hyde Sails, 2009. 6 winches: 4 Harken 48ST as halyard and runner winches plus 2 Harken 53 3 speed non ST winches.

Electrical Systems

12 volt battery, 3 batteries charged by: engine, shore power Sterling charger 2012

Construction

Construction GRP
Underwater profile Fin
Finish Paint finish

Fin and wedge shaped bulb underwater profile. Topsides vinyl hull wrapped, cockpit teak replaced with Flexteek 2007. Kept in code since 2006. Glass in the hatch forward of mast replaced 2013.

Accommodation

Total # of berths 8
No. of double berths 2
No. of single berths 4
Cabin(s) 3
Sink 2
Shower 2
Heads 2 heads (Manual)

Shower drain pump replaced 2006, calorifier replaced 2013, Spinflo Nelson cooker fitted 2006, fresh water pump fitted 2006, lee cloths fitted to all single plus port double, new upholstery and cushions 2009. New starboard toilet fitted 2013.

2 burner propane Stove

Stove
Broiler
Oven
Sink
Refrigerator
Drapes
Pressurised water system
Hot water system
Sail cover
Sprayhood
Rode
Fenders
Boathook
Swim Platform
Swim Ladder
Instrument Covers

4 halyard winches 2 sheet winches 2 anchors (CQR & Breton Kedge) 20.00m of chain 10.00m of rode Sail cover 2009 Sprayhood 2011

Nav Equipment

Compass
Speed
Log
Wind
Radar
VHF
VHF DSC radio
GPS
Chart plotter
Stereo
Clock
Barometer
Navigation lights
AIS Receiver
Depth sounder
Radar Reflector

3 x Raymarine ST70 Plus in Scanstrut pod mast, portside of cockpit 1 x ST70 Plus, 1 x i70, starboard cockpit ST60 Plus Graphic, i70 and E7 hybrid touchscreen plotter. At chart table, E9 hybrid touchscreen chart plotter and i70. Fluxgate compass with rate gyronetworked, Raymarine HD (tbc) radar mounted Scanstrut self levelling post networked to both plotters. Raytag MOB alarm connected to network with 2 tags. Navman DSC Radio. NASA Navtex connected to E9, Raymarine AIS transponder networked to i70's and both plotters. AIS is transponder and receiver.

Safety Equipment

Fume detector
Life jackets
Life buoys
Danbuoy
Horn
EPIRB 406MHz
Swim ladder
Emergency steering

3 bilge pumps (1 manual / 2 electric)

EPIRB requires service. Fire extinguishers and lifejackets serviced 2013 10 baltic winner auto/harness lifejackets with safety lines all fitted with hoods, lights and leg straps.

Broker's Comments

This Sigma 400 is IRC 1.2 she is a comfortable racer cruiser whilst satisfying the needs of a family or friends. Fully loaded with Raymarine navigation equipment she has had a considerable amount of money spent on her in the last few years not to mention the uber practical little sprayhood which her owner says was well worth it! She is a 1993 boat with a lot of life left in her as you will see when you race past everyone else on the water with minimal effort. These boat details are subject to contract. Note: Offers on the asking price may be considered.

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1994 Sigma 400 Technical Specs

General data about sigma 400.

Brand
Model
Boat Type
Category
Year Of Production
Condition (New/Used)
Country
Fuel (Gas/Diesel)
Hull Material Used
Length
Selling Price
Vat Status

Engine and Power Specs

Folding Props
Engine manufacturer
Engine Series
Engine Location
Engine Location
Engine Drive
Boat Propeller build
Boat Propeller

Dimensions And Wieght

LOA (Length Overall)
Boat Maximum Draft
Beam Width

Detailed Specifications

Number of Heads (Watercraft)

Features And Equipments

Sailing features.

Uk mc williams mainsail
There are lots of spare sails
Head sail no1 mc williams
Head sail no 3 mc williams - never used
Head sail no 2 north
75 oz spinnaker north sail
4 head sails north etc
2 crusing mains  good

Other Equipments

Perkins  3 cylinder m30
New topping lift 2019
New mast and rigging 2014 
New lewmar head sail cars 2020
New led tri colour and anchor light 2018
New heads hand pumps 2018
New cushions through out 2014
Marlow grand prix2 x spinnaker halyards
Marlow grand prix 2014head sail halyard
Gori two blade folding prop 2018
Gear box reconditioned 2020
2 secondary cockpit winches
2 lwemer  primary winches

Interior Specifications

Toilet head
Hand bilge pump
Automatic bilge pump

Exterior Features

Teak cockpit
Swim ladder
Spray hood
Lazyjacks
Lazy bag

Electronical And Electrical Info

Vhf radio
Speed log
Saloon mounted navman 7100
Navigation center
Marine wind instruments
Marine gps
Manual bilge pump in aft cabin
Depth sounder instrument
Compass steering
Chartplotter system
Autopilot system
2019 raymarine depth and speed
2019 raymarine autohelm
2 x new batteries 2019
1 x electric bilge pump 2018
Bimini from spray hood to rails 2019

Sigma 400 tv detailed specifications and features

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  • Yachting Monthly's Scuttlebutt
  • Thread starter Memphis_Chung
  • Start date 28 May 2009
  • 28 May 2009

Memphis_Chung

Hi, Does anyone have an opinion on these good looking boats? As well as all round opinions, I am particularly interested in shorthand-ability as most pictures I see seem to have about 8 burly blokes on the rail! Thanks!  

doris

Well-known member

They are Rob Humphryes designed. Years ago I spoke to a chap in the designers office about a 400. Very much a fully crewed boat with a huge main and needs 10 on the rail, forget about short handing. I got a 41 (David Thomas design, like all the real sigmas) instead. A completelty different type of boat.  

snooks

Active member

I've sailed a few 100 miles on one - Prime Evil owned by Wetstuff http://www.wetstuff.org.uk Great boats, but not the sort of boat I'd like to sail short handed though, they are fast and powerful and great fun to sail. accommodation is good, though small by todays standards 1 ensuite double aft to port , two singles to stb. double up front and a curved saloon, secure galley. Downside for cruising is the draft, over 2M /forums/images/graemlins/frown.gif Good solid fast racer cruises /forums/images/graemlins/smile.gif  

  • 29 May 2009

I had seen Prime Evil on the web, she looks lovely. I suspected as much re short handing. shame - there are not alot of cruiser racer 40 footers out there in that price range. Dave.  

wotayottie

Dont know about the 40 but looked over her smaller sister the 35 and no way was it a good boat for single handing. There are few newish boats that do seem set up for single handing. My last Moody was cr*p for that. New boat (Stalight) is a bit better but would still require single handing with autohelm.  

Anthony

I raced one across the Atlantic a few years ago, alot of fun, but with running backstays I am not sure I would want to shorthand. You really feel the power of that rig, great for playing on but could quickly turn into a headache if short of hands. Ants  

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  • Boat REF#  ·  214064
  • Length  ·  12.17m
  • Year  ·  1992
  • Construction  ·  GRP
  • Underwater profile  ·  Fin
  • Sleeping berths  ·  8
  • Engine  ·  1 x diesel 35hp, Perkins M35 (1992)
  • Lying  ·  Dublin

Boatshed Cork

Boatshed Cork

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  • Specification
  • Additional Information

Extra Details

Designer Rob Humphreys
Builder Marine Projects
Lying Dublin
Fuel capacity 115.0 ltr Total - 1 Tanks
Water capacity 205.0 ltr Total - 2 Tanks
Last survey 01/04/2013
Engine 1 x diesel 35hp
Engine make and model Perkins M35 (1992)
Engine Hours Not Recorded
Engine Cooled Indirect
Steering wheel
Drive shaft
Prop(s) 3 Blade Kiwi Folding
Fuel consumption (approx) 0.8 ltr /hour At Cruising Speed
Cruising speed (approx) 6 knots
Max speed (approx) 8 knots
Length 12.17m
LWL 10.03m
Beam 3.89m
Draft Max 2.30m
Displacement 7,500kg

Sloop rigged Selden Aluminium spars (2000) with Stainless Steel standing rigging (2000)

Reefing mainsail Watson - Slab (0002) 1 Reefs
Headsail Watson - Furling ()
Other sails #1 Genoa (Heavy) ()
#1 Genoa (Light) ()
#3 jib ()
#4 jib ()
Storm jib ()
Spinnakers x 3 (.7oz, .9oz & 1.5oz) ()
Spinnaker gear

Sails working well judging by this yacht's super performance in very competitive club racing scene. Many older sails also included.

Electrical Systems

12 volt battery, 3 batteries charged by: engine

Construction

Construction GRP
Underwater profile Fin
Finish Gelcoat finish

Owner changed original tanks to Stainless Steel.

Accommodation

Total # of berths 8
No. of double berths 2
No. of single berths 4
Cabin(s) 3
Sink 2
Shower 2
Heads 2 heads (Sea Toilet)

2 burner propane Stove

Stove
Broiler
Oven
Sink
Refrigerator
Drapes
Manual water system
Sail cover
Rode
Fenders
Instrument Covers

Nav Equipment

Compass
Speed
Log
Wind
VHF DSC radio
Chart plotter
Stereo
Clock
Navigation lights

Chart Plotter very basic. Wind Speed instruments to be reviewed.

Safety Equipment

Liferaft
Life buoys
EPIRB 406MHz
Emergency steering

2 bilge pumps (2 manual / 0 electric)

All ORC Cat 2 Safety Equipment included

Broker's Comments

When you step on board this Sigma 400 you get an immediate feeling of strength and stability. She is very well built and has proven to be a very fast cruiser / racer as expected from a Rob Humphries design.

Her overall hull design was based on the 1988 Whitbread Maxi 'Rothmans' and this clearly gives her the famous balance and stablity she is known to deliver particularly in heavy weather. This boat has raced some Round Irelands and Fastnets but has for the last decade been a great performer on IRC in a very competitive 'round the cans' club scene. Equally happy racing or doing some serious miles, this is a lot of boat for a 40 footer, and will provide the new owner with the much sought-after combination of fast racing and comfortable cruising.

Set up for racing at the moment, she needs only a little bit of polish to get her back looking tip top. A new set of cushions below would be a great advantage, and although not necessary, a sand and varnish below decks would have her looking brand new.

- These boat details are subject to contract. Note: Offers on the asking price may be considered.

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Used Sigma 400 for sale

Sigma 33 ood, the review of our community on the sigma 400, why trust us , already 4 boats sold through us, sigma 400: organize the purchase of your boat, how to buy your boat.

Becoming a boat owner is a wonderful dream come true. To get there, be patient and do your research daily because new announcements arrive every day and the silhouette of your future boat may be hiding there! Band of Boats highlights the location of the boat and its key characteristics, and also offers you similar models to broaden your search scope. Once you've found the boat model that meets all of your criteria, all you need to do is message the seller directly from the listing.

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Sigma Yachts Sigma 400

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General Data

Shipbuilder:, see also: boats for sale.

  • BENETEAU FIRST 40.7 RACE
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Overall length:

Waterline length:, maximum beam:, straightening:.

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  • Boat REF#  ·  101604
  • Length  ·  12.27m
  • Year  ·  1992
  • Construction  ·  GRP
  • Underwater profile  ·  Fin
  • Sleeping berths  ·  8
  • Engine  ·  1 x diesel 35hp, Perkins Perama M35 (1992)
  • Lying  ·  North Wales

Boatshed North Wales

Boatshed North Wales

This boat is off the market but here are some boats that are still for sale.

  • Specification
  • Additional Information

Extra Details

Designer Rob Humphreys
Builder Project Marine
Lying North Wales
Fuel capacity 115.0 ltr (25.3 USG) Total - 1 Tanks
Water capacity 205.0 ltr (45.1 USG) Total - 1 Tanks
Last survey 01/05/2002
Engine 1 x diesel 35hp
Engine make and model Perkins Perama M35 (1992)
Engine Hours Not Recorded
Engine Cooled Indirect
Steering wheel
Drive shaft
Prop(s) 2 Blade Gori Folding
Fuel consumption (approx) 0.8 ltr (0.2 USG) /hour At Cruising Speed
Cruising speed (approx) 6 knots
Max speed (approx) 8 knots

Engine Rebuild 2000

Length 12.27m
Beam 3.91m
Draft Min 2.33m
Draft Max 2.33m
Airdraft 19.00m
Displacement 9,431kg (20,795.4lbs)
Headroom 1.75m
Storage On marina

Sloop rigged Selden Aluminium spars (2000) with Stainless Steel standing rigging (2005)

Reefing mainsail Jecnells - Slab (2009)
Headsail - Furling (2008)
Spinnaker gear

Many Sails (Ask) 2 Runner Winches Plus One Reefing.

Electrical Systems

12 volt battery, 3 batteries charged by: engine, shore power

Construction

Construction GRP
Underwater profile Fin
Finish Gelcoat finish

Accommodation

Total # of berths 8
No. of double berths 2
No. of single berths 4
Cabin(s) 3
Sink 2
Shower 2
Heads 2 heads (Manual)

2 burner propane Stove

Stove
Broiler
Oven
Sink
Refrigerator
Cabin heating
Pressurised water system
Hot water system
Non-Smokers
Sail cover
Rode
Fenders
Boathook
Swim Platform
Swim Ladder
Instrument Covers

2 halyard winches 2 sheet winches Electric Lofrans windlass 2 anchors (CQR 35lb) 60.00m of chain Mailspeed 285 dinghy (2000) (Inflatable) 2.5hp outboard, Mariner, Short shaft (2000) Mailspeed 285 Inflatable With Deck Bag and Anchor Chain Warp

Nav Equipment

Compass
Speed
Log
Wind
VHF DSC radio
GPS
Chart plotter
Navtex
Stereo
Clock
Barometer
Navigation lights
Depth sounder

Safety Equipment

Fume detector
Liferaft
Life jackets
Life buoys
Searchlight
Danbuoy
Safety harnesses
Horn
EPIRB 406MHz
Swim ladder
Emergency steering

2 bilge pumps (2 manual / 0 electric)

Broker's Comments

The Sigma 400 is a well made fast cruiser racer, and is still proving competitive today. The overall hull design was based around the 1988 Whitbread Maxi Rothmans. This Sigma 400 was a well know boat in the 90's. I have personally spent months aboard this boat in the 90's and know her inside out. Her performance, balance, ability in heavy weather is amazing. In her later years she has been cruised mainly in the Irish sea where Derek (Boatshed) has spent time skippering her.

These boat details are subject to contract. Note: Offers on the asking price may be considered.

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Cost Of Ownership

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Sigma 400 Boat for Sale

  • accommodation
  • mechanical and rigging
  • Manufacturer: Sigma
  • Location: Dublin
  • LOA: 40'3" (12.27m)
  • Beam: 12' 9'' (3.89m)
  • Draft: 2.29
  • Keel: Fin keel
  • ID no.: 30281
  • Engine Make: Perkins Perama
  • Horsepower: 29hp
  • Drive Type: Shaft drive
  • Fuel Type: Diesel
  • Fuel Tank Size: 50 Litres

Broker Remarks

Rob Humphries design for performance cruising and passage making. This yacht has had many successful racing exploits and provided spacious cruising for its family owners. Lead keel, quality deck hardware and a most spacious interior with two double cabins aft. Reliable Perkins Perma diesel.

Accommodation

Large cockpit with teak seats and sold. Sugar scoop stern with boarding shelf. Large saloon with circular surround seating. Two aft cabins. Heads for and aft. Fore cabin with infill piece and over large escape hatch. Galley with island work top to port side of saloon. H&C pressure system. Cooker. Chest fridge. Cockpit with two lockers. Stainless steel grab rails on coachroof. 2 heads with Jabasco toilets. Wash basins.

Mechanical and Rigging

Perkins Perama M30 Diesel 3 cylinder Shaft drive to two blade Gori folding propeller. Shaft through P bracket. Water cooled pack gland. Anti Siphon on exhaust. 2013 keel stepped mast. Fractional rig. Rod kicker by Seldén Spinnaker pole 10 clutches on coachroof 2 X harken 34ST's on coachroof. 2 X Harken 50 ST primary winches. 2 X Harken 44 spinnaker sheet winches.

Stainless steel wheel Emergency tiller. 16kg CQR anchor Fire blanket 3 X Fire extinguishers. Manual & electric bilge pumps. EPIRB Plastimo dome compass on binnacle. Navman 7100 VHF Lorenz Chart plotter B&G log, depth & wind. B&G Hydra Pilot. Sony AM/FM radio 2X 96 AM batteries. Cockpit spray hood Complete cockpit tent with windows Fenders sail cover

Contact NYB Dublin

  • Address: Network Yacht Brokers Dublin Leinster Boats 5 Doonanore Park, Dun Laoghaire, County Dublin, Ireland. A96X4W9
  • Telephone: [+353] [0] 86 2543866 [+353] [0] 86 2543866 -->
  • Email: [email protected]
  • Link to full office details

Disclaimer : Leinster Boats offers the details of this vessel for sale but cannot guarantee or warrant the accuracy of the information contained in the specification or warrant the condition of the vessel or equipment. A buyer should instruct his agents, or surveyors, to investigate such details as the buyer desires validated. This vessel is offered for sale subject to no prior sale, price change, or withdrawal without notice.

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sigma 400 sailboat

Design number: 85 Year: 1990

Sigma 400 text required here

Sigma 400

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British Marine

IMAGES

  1. SIGMA 400

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  2. Sigma 400

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  3. 1993 Sigma 400 Sail New and Used Boats for Sale

    sigma 400 sailboat

  4. Sigma 400 1992 Cruising Yacht For Sale in Dartmouth, Devon

    sigma 400 sailboat

  5. Sigma 400

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  6. 1994 Sigma 400 Cruiser for sale

    sigma 400 sailboat

COMMENTS

  1. SIGMA 400

    A boat with a BN of 1.6 or greater is a boat that will be reefed often in offshore cruising. Derek Harvey, "Multihulls for Cruising and Racing", International Marine, Camden, Maine, 1991, states that a BN of 1 is generally accepted as the dividing line between so-called slow and fast multihulls.

  2. Sigma 400

    Sigma 400 is a 40′ 3″ / 12.3 m monohull sailboat designed by Rob Humphreys and built by Marine Projects Ltd starting in 1990. ... The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more. Formula. D/L = (D ÷ 2240) ÷ (0.01 x LWL)³ D: Displacement of the boat in pounds. LWL ...

  3. Sigma 400

    The Sigma 400 is a 40.27ft masthead sloop designed by Rob Humphreys and built in fiberglass by Marine Projects since 1990. The Sigma 400 is a moderate weight sailboat which is a good performer. It is stable / stiff and has a good righting capability if capsized. It is best suited as a coastal cruiser.

  4. Review of Sigma 400

    The Sigma 400 is equipped with a fin keel. The fin keel is the most common keel and provides splendid manoeuvrability. The downside is that it has less directional stability than a long keel. The keel is made of lead. Compared with iron, lead has the advantage of being 44% heavier, which allows a smaller keel and hence less water resistance and ...

  5. Sigma 400

    Sailboat data, rig dimensions and recommended sail areas for Sigma 400 sailboat. Tech info about rigging, halyards, sheets, mainsail covers and more. Sailboat Data directory for over 8,000 sailboat designs and manufacturers. Direct access to halyards lengths, recommended sail areas, mainsail cover styles, standing rigging fittings, and lots ...

  6. Sigma 400 Boat for Sale

    Sigma 400 for sale. A very fast cruiser racer of Rob Humphries hull design based on the 1988 Whitbread Maxi "Rothmans". She delivers spectacularly in heavy weather with balance, stability and no slamming. Raced in her early life, this boat has seen more cruising in the last ten years but has benefitted from extensive renovation in 2014 ...

  7. Sigma 400

    This sturdy ocean going Sigma 400 yacht, designed by Rob Humphries, has very little mileage on her having been de-commissioned in 2003 for a period of 12 years. Just 3 seasons ago in 2015, the current owners started their investment programme to get her ready for some serious offshore sailing. The list of upgrades is quite staggering and includes;

  8. Sigma 400 For Sale, 12.17m, 1993

    Sigma 400 for sale | 12.17m | 1993 | 1x diesel 34hp | GRP Construction | Fin underwater profile | 8 berths | Boat REF# 155537 ... She is a 1993 boat with a lot of life left in her as you will see when you race past everyone else on the water with minimal effort. These boat details are subject to contract.

  9. 1994 Sigma 400 Specs And Pricing

    Sigma: Model: 400: Boat Type: Power: Category: Cruiser (Power) Year Of Production: 1994: Condition (New/Used) Pre-Owned (Used) Country: ... 12.19 m / (40.00 ft) Selling Price: 65.000 (EUR) Vat Status: All taxes paid : Service repair manual: Sigma 400 Manual: Engine and Power Specs. Folding Props: Yes : Engine manufacturer: Perkins : Engine ...

  10. SIGMA 400

    Blue Water Surf Value Rank (BWSVR) 2085. Capsize Comfort Value Rank (CCVR)

  11. Sigma 400

    Sigma 400. Thread starter Memphis_Chung; Start date 28 May 2009; 28 May 2009 #1 M. Memphis_Chung New member. Joined 11 May 2003 Messages 136 Location ... New boat (Stalight) is a bit better but would still require single handing with autohelm. 29 May 2009 #6 Anthony Active member. Joined 8 Sep 2003 Messages 1,041 Location Western Australia ...

  12. Sigma 400 For Sale, 12.17m, 1992

    Sigma 400 for sale | 12.17m | 1992 | 1x diesel 35hp | GRP Construction | Fin underwater profile | 8 berths | Boat REF# 214064 ... This boat has raced some Round Irelands and Fastnets but has for the last decade been a great performer on IRC in a very competitive 'round the cans' club scene.

  13. Sigma 400 for sale

    All used Sigma 400 boats for sale by owner and professionals at the best prices. Browse selection and find a boat near you. Verified ads.

  14. Sigma boats for sale

    Some of the most widely-known Sigma models presently listed include: 36, 33, 33 OOD, 362 and 41. Sigma models are available through yacht brokers, dealers, and brokerages on YachtWorld. The listings encompass a range of years, starting from 1982 models up to 1987. Find Sigma boats for sale in your area & across the world on YachtWorld.

  15. Sailing boats

    Sigma 400 of sailing boat from yard Sigma Yachts

  16. 1994 Sigma Yachts Sigma 400, EUR 98.000,-

    Sigma Yachts Sigma 400 buy - Year Built: 1994, Length: 12.27 m, Beam: 3.89 m - Information, Photos and Contact Details for this Boat. (ID: 586613)

  17. SailboatData.com

    SailboatData.com …is a database that contains information on over 9000 production and semi-production sailboats dating back to the late 1800's. COMPARE BOATS. To compare up to three boats at one time, click the (+) Remove a compared boat by clicking (-) FORUM.

  18. Sigma 400 For Sale, 12.27m, 1992

    The Sigma 400 is a well made fast cruiser racer, and is still proving competitive today. The overall hull design was based around the 1988 Whitbread Maxi Rothmans. This Sigma 400 was a well know boat in the 90's. I have personally spent months aboard this boat in the 90's and know her inside out.

  19. Sigma 400 Boat for Sale

    Find out about this Sigma 400 Cruising Yacht in Ireland for sale and why Network Yacht Brokers is the site to buy and sell your sailing boats and yachts. ... Become A Yacht Broker; Manufacturers; Contact; Network Yacht Brokers Dublin. Under Offer. Sigma 400 Boat for Sale. €57,000 | Dublin Office Home | View Dublin Boats For Sale | View More ...

  20. Sigma 400

    Contact. 10 Blakes Yard, New Street Mews, Lymington, SO41 9NW +44 (0)1590 679344

  21. New and used Sigma 400 boats for sale

    Browse power boats and sailing boats by manufacturer. Create a Boat Alert to have matching boats emailed to you when they are added. Search for a Sigma 400 on the worlds largest network. We have Sigma 400 brokers and sellers from around the world at great prices. Information.

  22. Sigma 400 Sail Data

    Complete Sail Plan Data for the Sigma 400 Sail Data. Sailrite offers free rig and sail dimensions with featured products and canvas kits that fit the boat.

  23. Sigma 400 in Devon

    Technical data sheet of the second-hand Sailboats for sale. Second-hand Sigma 400 with Yanmar 3JH5E engine, 12.27 m in length, and 3.89 m beam length. Second-hand Sigma 400 in Devon (United Kingdom). Sale of Sailboats reference 85354