BoatsAlpa Yachts 9.50

Alpa Yachts 9.50

Masthead Sloop · Fin With Rudder On Skeg · First built 1970

An in-house Alpa design from 1970 featuring a deep 1.86m draft and a skeg-mounted rudder for directional stability

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 28 — a moderate, middle-of-the-road motion.

Comfort ratio 28
CoastalBluewater

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

Capsize screening 1.82
LightHeavy

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

Displacement / length 318
EasygoingPowered-up

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

Sail area / displacement 13.6
TenderStiff

37% of her weight is ballast — moderately stiff, a middle-of-the-road stability.

Ballast 37%

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

  • Draws more than ~81% of boats her size on file

Compared with 2632 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
37.1%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
13.6
Displacement / length
318.5
Comfort ratio
28.1
Capsize screening
1.82
Hull speed
6.6 kn
Pounds / inch immersion
831
Hull
Hull type
Fin with rudder on skeg
Construction
Fiberglass
Production
Years built
First built 1970
Designer
Alpa
Builder
Alpa

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 familyNear-identical lengthA Jacques De Ridder-designed IOR 23-footer built for nearly two decades as a stiff, masthead-rigged fin-keel sloop
Contessa 329.75 mSame hull family0.3 m longerA 1973 London Boat Show winner with a skeg-hung rudder and a ballast-to-displacement ratio of 47 percent
Beneteau Oceanis 319.66 mSame hull family0.2 m longerA Finot-Conq designed fractional sloop balancing a modern hull form with a stable 1.8-meter bulb keel
Cal Boats 309.14 mSame hull family0.4 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
Endeavour 329.75 mSame hull family0.3 m longerEndeavour's debut model, this masthead sloop evolved from the Irwin 32 hull into a stable, shoal-draft cruiser

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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