BoatsRival 31

Rival 31

Masthead Sloop · Fin With Rudder On Skeg · First built 1969

A Peter Brett-designed masthead sloop with a skeg-hung rudder, built for offshore stability since 1969

Designed by Peter Brett, built by Marine Construction.

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 heavy displacement on a moderate beam gives 32 — a sea-kindly motion in a seaway.

Comfort ratio 32
CoastalBluewater

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

Capsize screening 1.73
LightHeavy

340 — heavy for her waterline, built to carry stores and ride steadily.

Displacement / length 340
TenderStiff

40% of her weight is ballast — moderately stiff, a middle-of-the-road stability.

Ballast 40%

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

The record

Full specifications

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

Dimensions
Weights
Ballast / displacement
40.0%
Rig & sail area
Rig
Masthead Sloop
Ratios
Displacement / length
340.0
Comfort ratio
31.9
Capsize screening
1.73
Hull speed
6.6 kn
Pounds / inch immersion
847
Hull
Hull type
Fin with rudder on skeg
Construction
Fiberglass
Production
Years built
First built 1969
Units built
22
Designer
Peter Brett
Builder
Marine Construction

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.

Contest 319.50 mSame hull familyNear-identical lengthA U. van Essen-designed masthead sloop with a high ballast ratio, built for stability and comfort in a compact hull
Spirit 329.48 mSame hull familyNear-identical lengthA Jacques De Ridder-designed IOR 23-footer built for nearly two decades as a stiff, masthead-rigged fin-keel sloop
Dufour Yachts 319.40 mSame hull familyNear-identical lengthA 1973 masthead sloop featuring a skeg-mounted rudder and a comfortable, stable design for coastal cruising
Pearson Yachts 319.45 mSame hull familyNear-identical lengthA William Shaw-designed fractional sloop with a fin keel and spade rudder, built for performance between 1977 and 1981
Compromis 9099.45 mSame hull familyNear-identical lengthA 1985 Frans Maas masthead sloop featuring a shallow 1.24m draft and a 37% ballast ratio for stable coastal cruising
Ericson Yachts 32-29.63 mSame hull family0.2 m longerA Bruce King-designed masthead sloop with a fin keel and spade rudder, built for nearly a decade as a popular cruiser

The family

Boats like this

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

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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