BoatsHigh Tension 36

High Tension 36

Masthead Sloop · Fin With Rudder On Skeg · First built 1974

A Jacques de Ridder design derived from the 1974 One-Ton Cup prototype, built for offshore performance.

Designed by J. de Ridder & Jacques De Ridder, built by Southern Ocean Shipyard.

LOA
Beam
Draft (max)
Displacement
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 35 — a sea-kindly motion in a seaway.

Comfort ratio 35
CoastalBluewater

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

Capsize screening 1.71
LightHeavy

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

Displacement / length 278
EasygoingPowered-up

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

Sail area / displacement 13.4

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

  • Heavier than ~85% of boats her size on file
  • Draws more than ~84% of boats her size on file

Compared with 2963 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
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
13.4
Displacement / length
277.8
Comfort ratio
35.5
Capsize screening
1.71
Hull speed
7.5 kn
Pounds / inch immersion
1294
Hull
Hull type
Fin with rudder on skeg
Construction
Fiberglass
Production
Years built
First built 1974
Designer
J. de Ridder, Jacques De Ridder
Builder
Southern Ocean Shipyard

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.

Herreshoff Manufacturing Newport 2910.84 mSame hull familyNear-identical lengthA 1914 Nathanael Herreshoff design featuring a fin keel and gaff-rigged sloop sail plan for classic performance
S2 Yachts 11.0 C10.97 mSame hull familyNear-identical lengthA center-cockpit cruiser by Arthur Edmunds, designed for stability and comfort with a skeg-mounted rudder
Islander Yachts 3611.00 mSame hull familyNear-identical lengthAn Alan Gurney-designed masthead sloop with a 15-year production run and nearly 800 hulls launched
Moody 36S10.97 mSame hull familyNear-identical lengthAn aft-cockpit variation of the Moody 36, featuring a fin keel and skeg-mounted rudder for balanced coastal cruising
Freedom Yachts 35 (Pedrick)10.79 mSame hull familyNear-identical lengthA 1993 performance cruiser with a deep 1.98-metre draft and a spade rudder for responsive handling
Dufour Yachts 3710.77 mSame hull familyNear-identical lengthA modern fractional sloop from Felci Yacht Design, balancing a performance-oriented hull with a stable, comfortable beam

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

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