BoatsGunfleet Marine 43

Gunfleet Marine 43

Fractional Sloop · Fin w/bulb & Spade Rudder · First built 2011

A Tony Castro-designed fractional sloop offering versatile keel and rudder configurations for varied cruising needs

Designed by Tony Castro.

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Fin w/bulb & Spade Rudder

See her sail

The Gunfleet Marine 43, on the water

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

Footage from Hugh Robertson Sailing

Is it for you?

Character

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

LivelySea-kindly

Her moderate displacement on a moderate beam gives 35 — a sea-kindly motion in a seaway.

Comfort ratio 35
CoastalBluewater

1.76 — just under the 2.0 offshore line; her beam is modest for her weight.

Capsize screening 1.76
LightHeavy

227 — moderately heavy for her waterline, a balanced cruising weight.

Displacement / length 227
EasygoingPowered-up

14.4 — modest power for her weight; easygoing rather than lively, and happier with a breeze.

Sail area / displacement 14.4
TenderStiff

26% of her weight is ballast — on the tender side; she'll heel readily and want a reef sooner.

Ballast 26%

A capable cruiser that sits just inside the offshore line — coastal work with real passages in her.

  • Heavier than ~84% of boats her size on file

Compared with 2432 boats of the same type within a quarter of her length.

What the fleet has seen

The Gunfleet Marine 43, as the fleet has seen it

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

The Gunfleet Marine 43 is a Tony Castro-designed fractional sloop built by Gunfleet Marine since 2011, featuring a fin with bulb and spade rudder hull. It measures 13.43 meters LOA, with a 4.07-meter beam, 2.10-meter draft, and 12750 kg displacement. The model offers multiple keel and rudder configurations, including a saildrive and a centerboard option that adjusts draft from 1.38 meters to 2.70 meters. Dual rudders are also available. A Gunfleet 43 named *Skyfall* was seen anchored at Direction Island in the Cocos (Keeling) Islands.9:37

The living fleet

Sailed by the fleet

Where the fleet has filmed this boat.

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
Ballast / displacement
26.4%
Rig & sail area
Rig
Fractional Sloop
Ratios
SA / displacement
14.4
Displacement / length
226.5
Comfort ratio
34.5
Capsize screening
1.76
Hull speed
8.3 kn
Pounds / inch immersion
1818
Hull
Hull type
Fin w/bulb & spade rudder
Construction
FRP with Vinylester resin
Ballast type
Cast Iron
Production
Years built
First built 2011
Designer
Tony Castro
Builder
Gunfleet Marine

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.

Contest Yachts 44CS13.50 mSame hull familyNear-identical lengthA masthead sloop with a skeg-mounted rudder and a 36% ballast ratio, built for stable and capable offshore cruising
Najad Yachts 450 CC13.50 mSame hull familyNear-identical lengthA Judel-Vrolijk fractional sloop designed for comfortable offshore cruising with a modern fin-and-bulb keel configuration
Hunter Marine 450 Passage13.49 mSame hull familyNear-identical lengthA 45-foot cruiser with a bulb-fin keel and spade rudder, engineered for stable, comfortable offshore passage-making
Hylas 4413.46 mSame hull familyNear-identical lengthA 13-metre cruiser featuring a skeg-hung rudder and a substantial 49% ballast ratio for offshore stability
Najad Yachts 44113.50 mSame hull familyNear-identical lengthA heavy-displacement masthead sloop with a high comfort ratio, designed for stable, long-distance blue water cruising
Swan 44 MK II (Frers)13.44 mSame hull familyNear-identical lengthA 13.44-metre cruiser featuring a bulb-fin keel and spade rudder, produced by Swan from 1996 to 2002

The family

Related models

The designs closest to hers — usually the rest of the builder's range, sometimes the same hull sold under another name.

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