BoatsAlpa Yachts A27

Alpa Yachts A27

Masthead Sloop · Fin w/transom Hung Rudder · First built 1975

A 1975 Sparkman & Stephens design with a transom-hung rudder and a 1.6m draft for coastal performance

Designed by Sparkman & Stephens.

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Fin w/transom Hung Rudder

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

Comfort ratio 20
CoastalBluewater

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

Capsize screening 2.07
LightHeavy

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

Displacement / length 237
EasygoingPowered-up

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

Sail area / displacement 17.8
TenderStiff

36% of her weight is ballast — moderately stiff, a middle-of-the-road stability.

Ballast 36%

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
35.5%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
17.8
Displacement / length
237.0
Comfort ratio
20.3
Capsize screening
2.07
Hull speed
6.4 kn
Pounds / inch immersion
790
Hull
Hull type
Fin w/transom hung rudder
Construction
Fiberglass
Production
Years built
First built 1975
Designer
Sparkman, Stephens
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.

Newport 27S8.23 mSame hull familyNear-identical lengthA 1974 masthead sloop with a 1.3-metre draft, offering a stable fin-keel platform for shoal-water coastal cruising
Pearson Yachts 27 (Triton 27)8.23 mSame hull familyNear-identical lengthA Doug Peterson-influenced masthead sloop built from US Yachts molds, offering a light-displacement take on IOR design
Bristol Yachts 288.53 mSame hull family0.4 m longerAn IOR Half Ton racer with reduced stern overhang, serving as the performance-oriented predecessor to the Bristol 29.9
Coronado Yachts 278.13 mSame hull familyNear-identical lengthA William Tripp Jr. design featuring a masthead sloop rig and fin keel, sharing a near-identical hull with the Columbia 27
Islander Yachts 288.51 mSame hull family0.3 m longerA Robert Perry-designed masthead sloop with over 400 built, favored by the designer himself for her balanced performance
Puma 277.95 mSame hull family0.2 m shorterA Ron Holland-designed masthead sloop with a fin keel and spade rudder, built for performance-oriented coastal cruising

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

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