BoatsBristol Yachts 51.1

Bristol Yachts 51.1

Masthead Sloop · Keel/centreboard · First built 1987

A 1987 semi-custom masthead sloop with a 3.2-metre keel-centerboard draft and a high 40.31 comfort ratio

Designed by Dieter Empacher.

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Keel/Cbrd.

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 40 — a heavy, notably soft motion offshore.

Comfort ratio 40
CoastalBluewater

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

Capsize screening 1.73
LightHeavy

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

Displacement / length 260
EasygoingPowered-up

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

Sail area / displacement 15.8
TenderStiff

45% of her weight is ballast — stiff, standing up well to her sails.

Ballast 45%

Built heavy and sea-kindly — a boat made to cross oceans and forgive a rough night.

  • Heavier than ~83% of boats her size on file
  • Beamier than ~80% of boats her size on file

Compared with 184 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
44.6%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
15.8
Displacement / length
260.1
Comfort ratio
40.3
Capsize screening
1.73
Hull speed
8.7 kn
Pounds / inch immersion
2286
Hull
Hull type
Keel/Cbrd.
Construction
Fiberglass
Ballast type
Lead
Production
Years built
First built 1987
Designer
Dieter Empacher
Builder
Bristol Boat Company

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.

Morgan Yachts Out Island 5115.70 mSame hull family0.2 m longerA heavy-displacement staysail ketch with a keel-centerboard configuration designed for comfortable long-range cruising
Irwin Yachts 5416.46 mSame hull family0.9 m longerA 16.46-metre staysail ketch with a 39.9 comfort ratio, built since 1988 for stable, long-range cruising
Alden Yachts 5416.48 mSame hull family0.9 m longerAn extended-stern evolution of the 50-foot series, available in both center and aft cockpit layouts as well as cutter or ketch
Trintella 5316.43 mSame hull family0.9 m longerA Van de Stadt-designed masthead ketch with a keel-centerboard hull, built for offshore versatility and comfort
Southerly Yachts 48014.98 mSame hull family0.6 m shorterA Stephen Jones-designed 14.98-metre cruiser featuring a Solent rig and a centerline skeg to protect the propeller
Southerly Yachts 47014.35 mSame hull family1.2 m shorterA 14.35-metre fractional sloop featuring a self-tacking jib and a swing keel for deep-water performance in shoal areas

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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