BoatsNeptunian 33

Neptunian 33

Masthead Ketch · Long Keel · First built 1972

An aft-cockpit cruiser featuring a long keel and a masthead ketch rig, built for stable coastal passages

Designed by Alan H. Buchanan, built by Tyler Boat Company.

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 heavy displacement on a moderate beam gives 36 — a sea-kindly motion in a seaway.

Comfort ratio 36
CoastalBluewater

At 1.68 she sits well under the 2.0 line — a solidly ocean-capable hull for her size.

Capsize screening 1.68
LightHeavy

390 — very heavy for her waterline, a serious load-carrying cruiser.

Displacement / length 390
EasygoingPowered-up

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

Sail area / displacement 13.8
TenderStiff

44% of her weight is ballast — stiff, standing up well to her sails.

Ballast 44%

Built heavy and sea-kindly — a boat made to cross oceans and forgive a rough night.

  • Draws less than ~78% of boats her size on file

Compared with 431 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
44.3%
Rig & sail area
Rig
Masthead Ketch
Ratios
SA / displacement
13.8
Displacement / length
390.4
Comfort ratio
36.0
Capsize screening
1.68
Hull speed
6.7 kn
Pounds / inch immersion
893
Hull
Hull type
Long Keel
Construction
Fiberglass
Production
Years built
First built 1972
Designer
Alan H. Buchanan
Builder
Tyler Boat Company

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.

Rustler 319.58 mSame hull family0.4 m shorterA heavy-displacement masthead sloop with a long keel, evolved from the North Sea 24 and sharing lineage with the Twister 31
Beneteau Evasion 329.70 mSame hull family0.3 m shorterA long-keeled masthead ketch that launched the Evasion line and marked a new era for Beneteau
Allied Boat Co. Seawind9.30 mSame hull family0.7 m shorterA Thomas Gillmer-designed masthead ketch with a long keel, marking both the beginning and the end of the Allied Boat Co.
Alden 32 Motor Sailer9.60 mSame hull family0.4 m shorterOriginally known as the Winsome Class, this masthead sloop features a long keel and was available in both sloop and ketch
Vancouver 34 Pilot10.44 mSame hull family0.5 m longerA Robert B. Harris-designed cutter featuring a deck saloon for protected cruising on a stable, long-keeled hull
Cape George 319.45 mSame hull family0.5 m shorterA William Atkin-designed cutter with a heavy ballast ratio and long keel, built for stability and offshore comfort

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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