BoatsGunfleet Marine 58

Gunfleet Marine 58

Masthead Sloop · Keel/centreboard, twin rudders · First built 2013

A masthead sloop featuring a keel-centerboard configuration and dual rudders for deep-water stability and control

Designed by Tony Castro.

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Keel/CB w/dual Rudders

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 narrow beam gives 44 — a heavy, notably soft motion offshore.

Comfort ratio 44
CoastalBluewater

At 1.67 she sits well under the 2.0 line — a solidly ocean-capable hull for her size.

Capsize screening 1.67
LightHeavy

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

Displacement / length 197
EasygoingPowered-up

15.5 — moderate power for her weight; steady, all-round performance.

Sail area / displacement 15.5
TenderStiff

30% of her weight is ballast — on the tender side; she'll heel readily and want a reef sooner.

Ballast 30%

A capable offshore cruiser with an easy motion when the sea gets up.

  • Heavier than ~92% of boats her size on file
  • Draws more than ~81% of boats her size on file
  • Beamier than ~90% of boats her size on file

Compared with 105 boats of the same type within a quarter of her length.

The record

Full specifications

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

Dimensions
Weights
Ballast / displacement
30.3%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
15.5
Displacement / length
197.4
Comfort ratio
43.5
Capsize screening
1.67
Hull speed
9.8 kn
Pounds / inch immersion
3272
Hull
Hull type
Keel/CB w/dual rudders
Construction
Carbon reinforced GRP
Ballast type
Lead
Production
Years built
First built 2013
Designer
Tony Castro
Builder
Gunfleet Marine

Boats like this, on the water

Nobody has filmed this one — but these are close.

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.

Irwin Yachts 65/6819.76 mSame hull family1.5 m longerA Ted Irwin-designed staysail ketch with a centerboard for shoal-draft cruising in a heavy, comfortable displacement
Irwin Yachts 5416.46 mSame hull family1.8 m shorterA 16.46-metre staysail ketch with a 39.9 comfort ratio, built since 1988 for stable, long-range cruising
Stadtship 5617.10 mSame hull family1.2 m shorterA high-performance aluminum fractional sloop featuring a lifting keel for versatile access to deep and shallow waters
Morgan Yachts Out Island 5115.70 mSame hull family2.6 m shorterA heavy-displacement staysail ketch with a keel-centerboard configuration designed for comfortable long-range cruising
Garcia Yachts Exploration 4514.88 mSame hull family3.4 m shorterA rugged aluminum cutter by Berret-Racoupeau featuring a centerboard and dual rudders for high-latitude exploration
Feeling 5516.80 mSame hull family1.5 m shorterA 16.8-metre fractional sloop featuring a 3.6m lifting keel and dual rudders for deep-water performance

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.

Keep looking

Nothing filmed of this one yet

Two ways to keep looking — both search what the fleet has actually recorded.

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