BoatsGrampian Marine 30

Grampian Marine 30

Masthead Sloop · Fin keel, spade rudder · 1969–1977

A versatile masthead sloop offered with a tall mast option, a keel/centerboard configuration, or a cutter rig

Designed by Alex McGruer.

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Fin w/spade 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 moderate beam gives 25 — a moderate, middle-of-the-road motion.

Comfort ratio 25
CoastalBluewater

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

Capsize screening 1.86
LightHeavy

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

Displacement / length 232
EasygoingPowered-up

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

Sail area / displacement 14.9
TenderStiff

45% of her weight is ballast — stiff, standing up well to her sails.

Ballast 45%

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
45.0%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
14.9
Displacement / length
231.5
Comfort ratio
24.7
Capsize screening
1.86
Hull speed
6.8 kn
Pounds / inch immersion
866
Hull
Hull type
Fin w/spade rudder
Construction
Fiberglass
Production
Years built
1969–1977
Units built
400
Designer
Alex McGruer
Builder
Grampian Marine Ltd

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.

C&C Yachts 30-29.12 mSame hull familyNear-identical lengthA performance-oriented masthead sloop with a fin keel and spade rudder, designed by C&C for balanced club racing
Granada Yachts 319.39 mSame hull family0.3 m longerA masthead sloop with a spade rudder and nearly 46% ballast ratio, designed for stability in a 31-foot hull
Ranger Yachts 29 (Mull)8.71 mSame hull family0.4 m shorterA 1970s masthead sloop with a skeg-hung rudder, offering a balanced 1.98 capsize screening for coastal cruising
Cal Boats 309.14 mSame hull familyNear-identical lengthOffered with an optional tall rig, this masthead sloop served as the predecessor to the 2-30 series
Nonsuch 309.24 mSame hull family0.2 m longerA 30-foot cruiser with a 43% ballast ratio, offering a stable and stiff platform for coastal cruising
Lancer 30-28.99 mSame hull familyNear-identical lengthA masthead sloop derived from the original C&C 30 moulds, offering a stable fin-keel platform for 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

Two ways to keep looking — both search what the fleet has actually recorded.

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