BoatsGunboat 55

Gunboat 55

Catamaran, twin daggerboards · Fractional Sloop · First built 2015

A Nigel Irens-designed performance catamaran with a high sail-area-to-displacement ratio for rapid offshore cruising

Designed by Nigel Irens.

LOA
Beam
Draft (max)
Displacement
Hull type
Catamaran Twin Dbrd.

See her sail

The Gunboat 55, on the water

The fleet's own footage — the truest look at how she really moves.

Footage from Sailing La Vagabonde

Is it for you?

Character

Where this design lands on the numbers a shopper trusts — read straight from her own ratios.

Shoal draughtDraws 0.61 m, board up where she has one — creeks, sandbars and thin anchorages most keels have to stay out of.
LightHeavy

67 — light for her waterline, so she is easily driven and quick to accelerate.

Displacement / length 67
EasygoingPowered-up

36.2 — a lot of sail for her weight; powered-up and eager, a real performer.

Sail area / displacement 36.2
  • Draws more than ~88% of boats her size on file

Compared with 190 boats of the same type within a quarter of her length.

What the fleet has seen

The Gunboat 55, as the fleet has seen it

Derived from the videos the fleet has analysed of this model. ▶ marks open the moment aboard.

The Gunboat 55 is a 17.4-meter carbon fiber catamaran designed by Nigel Irens and built by Gunboat, with production beginning in 2015. It features a fractional sloop rig, twin daggerboards, and a lightship displacement of 12.5 tonnes. The model has an 86-foot air draft and a 25-foot beam, with a sail area-to-displacement ratio of 35. Power comes from twin 39-horsepower Yanmar 3JH5E diesel engines and 720 amp-hours of 24-volt Mastervolt lithium batteries, supported by 2,700 watts of Solbian solar panels and a 10-kilowatt Phasor genset. Aboard *Vandal*, a Gunboat International model, the interior includes a washing machine, air conditioning, and an apartment-sized refrigerator, with a salon and hull headroom of 1.98 meters.2:48 The sail inventory typically includes a Solent, a J0, a masthead spinnaker, and a fractional reacher. The Gunboat 55 *Rainmaker* dismasted in January 2015, leading to a helicopter rescue of its crew.4:47

The living fleet

Sailed by the fleet

Where the fleet has filmed this boat.

Seen 3 times across 3 channels of the fleet.

Basemap © Wikimedia Commons · CC BY-SA 4.0

What they go for

Market signal

Where the fleet has seen this model for sale, and the asking prices that came with it.

1seen for sale
US$2Median asking

From the fleet's own footage — our observed signal, not broker listings.

The record

Full specifications

The complete reference set — tap any figure to switch between metric and imperial.

Dimensions
Weights
Rig & sail area
Rig
Fractional Sloop
Ratios
SA / displacement
36.2
Displacement / length
66.8
Hull
Hull type
Catamaran Twin Dbrd.
Construction
FG/Carbon infusion
Production
Years built
First built 2015
Designer
Nigel Irens
Builder
Gunboat

Boats like this, on the water

More boats like her, on the water

Comparable boats the fleet has on camera: same type, within a quarter of her length. Open the boat, or watch the video — a timestamp means she only appears in passing.

Neel 5215.85 mSame hull family1.5 m shorterA high-performance trimaran from Marc Lombard featuring a massive 8.8-metre beam and a high sail-area-to-displacement ratio
Outremer 5516.30 mSame hull family1.1 m shorterA lightweight 16.3-metre performance catamaran with an aggressive 34.55 sail-area-to-displacement ratio
Hh 5516.74 mSame hull family0.6 m shorterA 16.74-metre carbon catamaran with a high 33.37 SA/displacement ratio, built for rapid passage making since 2018
Bali 5.817.65 mSame hull family0.3 m longerA 2024 Xavier Fay-designed catamaran featuring a high sail-area-to-displacement ratio for spirited performance

The family

Boats like this

Nearby designs by size, type, and era — worth a look alongside her.

Keep asking

The fleet has more to say

Search what's been said about the Gunboat 55, or ask a specific question — the answer comes back written out, with links to the moments it draws on.

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