BoatsWindward 850

Windward 850

Masthead Sloop · Fin With Rudder On Skeg · 1973–1982

A John Simpson-designed masthead sloop with a skeg-hung rudder, built for coastal cruising between 1973 and 1982

Designed by John Simpson.

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Fin With Rudder On Skeg

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 beamy beam gives 18 — a quick, lively motion that feels every wave.

Comfort ratio 18
CoastalBluewater

2.17 — right around the 2.0 line, the edge between coastal and offshore.

Capsize screening 2.17
LightHeavy

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

Displacement / length 203
EasygoingPowered-up

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

Sail area / displacement 17.2
TenderStiff

44% of her weight is ballast — stiff, standing up well to her sails.

Ballast 44%

A balanced, easily-driven cruiser — comfortable and forgiving for coastal work.

The record

Full specifications

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

Dimensions
Weights
Ballast / displacement
44.4%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
17.2
Displacement / length
203.4
Comfort ratio
18.0
Capsize screening
2.17
Hull speed
6.6 kn
Pounds / inch immersion
858
Hull
Hull type
Fin with rudder on skeg
Construction
Fiberglass
Production
Years built
1973–1982
Designer
John Simpson
Builder
Windward Marine Ltd, Spencer Boats Ltd

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.

Maxi Yachts Fenix 8.58.50 mSame hull familyNear-identical lengthA 1980s cruiser with a 1.5-metre bulb keel and spade rudder, designed for a balanced, stable coastal experience
Bristol Yachts 288.53 mSame hull familyNear-identical lengthAn IOR Half Ton racer with reduced stern overhang, serving as the performance-oriented predecessor to the Bristol 29.9
Pearson Yachts 27 (Triton 27)8.23 mSame hull family0.3 m shorterA Doug Peterson-influenced masthead sloop built from US Yachts molds, offering a light-displacement take on IOR design
Jeanneau Aquila 278.70 mSame hull family0.2 m longerA Philippe H. Harle-designed masthead sloop offered in both standard and deep-keel Regatta configurations
San Juan 288.74 mSame hull family0.2 m longerA 1977 masthead sloop with a 50% ballast ratio and fin keel, designed for balanced performance in a compact 28-foot hull
Newport 27S8.23 mSame hull family0.3 m shorterA 1974 masthead sloop with a 1.3-metre draft, offering a stable fin-keel platform for shoal-water coastal cruising

The family

Boats like this

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

Keep looking

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