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 Catamaran Mistertong

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.

The living fleet

Sailed by the fleet

Where the fleet has filmed this boat.

Seen once across one channel of the fleet.

Basemap © Wikimedia Commons · CC BY-SA 4.0

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.

Outremer 5X17.98 mSame hull family0.6 m longerA high-performance catamaran with daggerboards and a high sail-area-to-displacement ratio, designed for rapid blue-water cruising
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
Seawind 160015.74 mSame hull family1.6 m shorterA Reichel-Pugh designed performance catamaran featuring twin daggerboards and a high 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

The family

Boats like this

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

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