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2019 Hughes 40-46 Tri

$299,000 USD

Seller's Description

This is a rare opportunity for a trimaran sailor. You’ve found a custom-built Kurt Hughes designed trimaran (extended to 46’ for additional cruising comfort) that has never been sailed. This trimaran has been carefully constructed from epoxy, foam, cedar strip, and carbon fiber over the course of a 5-year full-time build. She has an extremely well documented build history. You can view every stage of her construction. She has a Kurt Hughes designed rotating carbon fiber wing mast and integral carbon fiber chainplates. The rig is already in place and supported by Dyneema standing rigging. All of her running rigging and supporting deck hardware is bedded in place. The interior has been fitted out with all cabinetry, custom upholstery, 2 queen cabins, a separate head and shower with beautiful fixtures and surfaces. She’s been plumbed and wired. Her systems are ready-to-go - twin helms, outboard hiking seats, hardtop bimini, 500 watts of solar, 2 generators, ground tackle, electric windlass, shore power, charger. . . There is even a rough-in for a watermaker should you choose to add one. The outboards hang in their nacelles ready to propel her off the dock. The dinghy is even waiting on the tramps. Unfortunately this trimaran has been poised in suspended animation since her launch in 2019. Health forces sale. Won’t you introduce her to the world? She is in the Canadian Gulf Islands at the foot of the Inside Passage upwind and up current of the world’s best cruising. Just add the sails of your choosing (discounted quotes available). Bring your cruising dreams to life now. Email Matthew today for complete details and start cruising with speed, comfort, and style aboard a beautiful custom (and essentially new) trimaran.

Additional Details

Specifications & Equipment

Construction: 100% Epoxy sandwich construction utilizing carbon fiber, PVC foam, wood strip and end grain balsa. Carbon Fiber wing mast and boom.

On Deck:

-4 helm positions (2 cockpit, 2 outboard hiking)

-2 x stainless steel destroyer wheels

-2 x outboard hiking seats

-Rotating carbon fiber rotating wing mast designed by Kurt Hughes

-Carbon/foam spreaders designed by Kurt Hughes

-20’ carbon fiber boom

-Dyneema standing rigging with lashing

-Running backstays

-Stainless forestay

-Integrated chain plates designed by Kurt Hughes

-Harken curved traveller

-Harken Genoa Furler

-Harken asymmetrical Spinnaker Furler

-Garhauer blocks

-2 x Harken 50 winches

-4 x Harken 46 halyard and sheet winches

-1 x Harken 32 boom reefing winch

-All necessary deck gear – clutches, blocks, tracks, organizers, Garhauer cars (need to be installed when headsail is chosen)

-2 x Supertramp trampolines

-3 x Vetus aluminum hatches

-Cockpit hardtop bimini

-LED Cockpit lighting


-2 x Mercury Prokickers 15 HP outboards with extended legs

-Dual engine control binnacle

-2 x Champion 2000 generators – 1 in each ama

-10 x 50-watt panels

-MT50 charge controllers & monitoring

-Maxwell windlass with wireless remote

-Bluesea Electrical Panel

-30 amp charger

-3 x Trogen AGM house batteries

-Optima engine & windlass battery

Electronics, Instruments, & Additional:

-Raymarine Axiom 12 GPS

-Cobra VHF

-20 lb Rocna anchor

-4 gallon 110 volt hot water heater

-Rough-in provided for future watermaker

-Inflatable dinghy


-4’x5’ white oak table in saloon with storage beneath

-8’ x 4’ upholstered saloon settee

-All LED cabin lighting

-11’ galley with 6’ 3” headroom

-double stainless steel sink

-4 burner propane stove

-9 Cu ft. Fridge/freezer

-Pressure hot/cold water

-4 Gal. 110 watt Hot water tank

-Lots of stowage

-Glass sink on custom head vanity

-Separate toilet and shower compartments

-Forward cabin with 5’10” headroom

-Queen 6’ 8” length v-berth

-Upholstered forward cabin lounge/bunk

-Aft Cabin with 5”10 headroom accessed from within or without

-Queen 6’ 8” long aft berth



Sparkman & Stephens
Hughes Boat Works
# Built


Length Overall
39 11 / 12.2 m
Waterline Length
31 0 / 9.5 m
13 3 / 4 m
4 7 / 1.4 m
28,000 lb / 12,701 kg
9,200 lb / 4,173 kg

Rig and Sails

Reported Sail Area
786′² / 73 m²
Total Sail Area
647′² / 60.2 m²
Sail Area
303′² / 28.1 m²
43 2 / 13.2 m
14 0 / 4.3 m
Air Draft
Sail Area
345′² / 32 m²
49 2 / 15 m
14 0 / 4.3 m
Forestay Length
51 2 / 15.6 m
28 2 / 8.6 m
9 8 / 3 m

Auxilary Power

Fuel Type
Fuel Capacity
75 gal / 284 l
Engine Hours


Water Capacity
180 gal / 681 l
Holding Tank Capacity


Hull Speed
7.0 kn
Classic: 7.46 kn

Hull Speed

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

A more accurate formula devised by Dave Gerr in The Propeller Handbook replaces the Speed/Length ratio constant of 1.34 with a calculation based on the Displacement/Length ratio.

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

7.03 knots
Classic formula: 7.46 knots
Sail Area/Displacement
<16: under powered

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.
<16: under powered
16-20: good performance
>20: high performance
<40: less stiff, less powerful

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

<40: less stiff, less powerful
>40: stiffer, more powerful
>350: ultraheavy

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
<100: ultralight
100-200: light
200-300: moderate
300-400: heavy
>400: very heavy
Comfort Ratio
40-50: heavy bluewater boat

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 Beam1.33)

  • D: Displacement of the boat in pounds
  • LWL: Waterline length in feet
  • LOA: Length overall in feet
  • Beam: Width of boat at the widest point in feet
<20: lightweight racing boat
20-30: coastal cruiser
30-40: moderate bluewater cruising boat
40-50: heavy bluewater boat
>50: extremely heavy bluewater boat
Capsize Screening
<2.0: better suited for ocean passages

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)

  • Beam: Width of boat at the widest point in feet
  • D: Displacement of the boat in pounds
<2: better suited for ocean passages
>2: better suited for coastal cruising


S&S design #2134.
An earlier version was called the NORTH STAR 80/20. Another built to his design was the SWIFT 40, built in KOREA.

This listing is presented by MultihullCompany.com. Visit their website for more information or to contact the seller.

View on MultihullCompany.com




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