BoatsAllied Boat Co. Chance 30-30

Allied Boat Co. Chance 30-30

Masthead Sloop · Fin With Rudder On Skeg · 1971–1974

A versatile IOR half-ton racer built in two distinct measurement-rule versions to optimize for MORC or CCA competition

Designed by Britton Chance Jr.

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 30 — a sea-kindly motion in a seaway.

Comfort ratio 30
CoastalBluewater

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

Capsize screening 1.79
LightHeavy

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

Displacement / length 320
EasygoingPowered-up

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

Sail area / displacement 15.5
TenderStiff

58% of her weight is ballast — very stiff, carrying full sail in a blow.

Ballast 58%

A capable cruiser that sits just inside the offshore line — coastal work with real passages in her.

The record

Full specifications

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

Dimensions
Weights
Ballast / displacement
58.0%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
15.5
Displacement / length
320.0
Comfort ratio
30.2
Capsize screening
1.79
Hull speed
6.7 kn
Pounds / inch immersion
893
Hull
Hull type
Fin with rudder on skeg
Construction
Fiberglass
Ballast type
Lead
Production
Years built
1971–1974
Designer
Britton Chance Jr
Builder
Allied Boat Co

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.

Spirit 329.48 mSame hull family0.2 m longerA Jacques De Ridder-designed IOR 23-footer built for nearly two decades as a stiff, masthead-rigged fin-keel sloop
Catalina Yachts 309.12 mSame hull family0.2 m shorterOne of the most successful production yachts in history, with over 6,000 hulls built during a 32-year run
Contest 319.50 mSame hull family0.2 m longerA U. van Essen-designed masthead sloop with a high ballast ratio, built for stability and comfort in a compact hull
Cal Boats 309.14 mSame hull family0.2 m shorterOffered with an optional tall rig, this masthead sloop served as the predecessor to the 2-30 series
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
Dufour Arpege 309.14 mSame hull family0.2 m shorterA record-breaking production of over 1500 units, this MORC-compliant racer-cruiser defined a new standard for the 30-foot class

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.

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Nothing filmed of this one yet

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