BoatsBlue Chip 30

Blue Chip 30

Masthead Sloop · Long Keel · 1961–1985

Designed by A. Sidney DeWolf Herreshoff, this long-keeled masthead sloop offers a 46% ballast ratio for stability

Designed by A. Sidney DeWolf Herreshoff, built by Cape Cod Shipbuilding.

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Long Keel

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

Comfort ratio 23
CoastalBluewater

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

Capsize screening 1.88
LightHeavy

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

Displacement / length 252
EasygoingPowered-up

19.2 — plenty of sail for her weight; lively and quick to respond.

Sail area / displacement 19.2
TenderStiff

46% of her weight is ballast — stiff, standing up well to her sails.

Ballast 46%

Powered-up and quick to accelerate — this one likes to sail.

The record

Full specifications

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

Dimensions
Weights
Ballast / displacement
46.4%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
19.2
Displacement / length
251.6
Comfort ratio
23.0
Capsize screening
1.88
Hull speed
6.5 kn
Pounds / inch immersion
745
Hull
Hull type
Long Keel
Construction
Fiberglass
Ballast type
Lead
Production
Years built
1961–1985
Designer
A. Sidney DeWolf Herreshoff
Builder
Cape Cod Shipbuilding

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.

Pearson Yachts-USA Triton8.63 mSame hull family0.5 m shorterA Carl Alberg-designed long-keel fractional sloop that pioneered fibreglass cruising and saw international production.
Vindo 328.95 mSame hull familyNear-identical lengthA classic Carl Andersson-designed masthead sloop featuring a long keel and traditional build for stable, comfortable cruising
Sea Sprite 27/288.51 mSame hull family0.6 m shorterA classic long-keeled fractional sloop designed by A.E. Luders, offering a stable and comfortable ride for coastal cruising
Cape Dory 288.56 mSame hull family0.5 m shorterA classic Carl Alberg full-keel masthead sloop designed for steady, comfortable cruising
Mariner 319.35 mSame hull family0.3 m longerA long-keeled masthead ketch and the first fiberglass hull from Far East Yachts, featuring a plywood-cored deck
Alberg 309.22 mSame hull familyNear-identical lengthA classic Carl Alberg long-keeled masthead sloop built for over two decades, offering a stable and comfortable motion

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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