BoatsBorsaw 40

Borsaw 40

Masthead Sloop · Long Keel · First built 1968

A rare production of only six hulls, this long-keeled masthead sloop served as the original mold for the Allied 39

Designed by Owens, built by Allen Boat Co.

LOA
Beam
Draft (max)
Displacement
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 narrow beam gives 35 — a sea-kindly motion in a seaway.

Comfort ratio 35
CoastalBluewater

At 1.64 she sits well under the 2.0 line — a solidly ocean-capable hull for her size.

Capsize screening 1.64
LightHeavy

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

Displacement / length 311
EasygoingPowered-up

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

Sail area / displacement 15.4

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

  • Draws more than ~84% of boats her size on file

Compared with 377 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
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
15.4
Displacement / length
311.2
Comfort ratio
35.5
Capsize screening
1.64
Hull speed
7.2 kn
Pounds / inch immersion
1088
Hull
Hull type
Long Keel
Construction
Fiberglass
Production
Years built
First built 1968
Units built
6
Designer
Owens
Builder
Allen Boat Co

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.

Island Packet 370/37911.53 mSame hull family0.7 m shorterA long-running cutter produced from 2003 to 2019, featuring a skeg-hung rudder and a stable 1.3-metre draft
Bristol Yachts 3911.89 mSame hull family0.3 m shorterA 1966 masthead sloop with a long keel, built for five years as a precursor to the long-running Bristol 40
Island Packet 34911.66 mSame hull family0.5 m shorterA Robert K. Johnson-designed cruiser featuring a shoal-draft long keel and a versatile Solent rig
Downeaster 3811.58 mSame hull family0.6 m shorterA 1974-era cutter with a 35.4 comfort ratio, built for stable, long-distance voyaging on a heavy-displacement hull
Hans Christian 3612.80 mSame hull family0.6 m longerA heavy-displacement cutter with a long keel, designed by Bob Perry for offshore stability and traditional cruising
Island Packet 38012.06 mSame hull familyNear-identical lengthA 12-metre blue-water cruiser featuring a 1.4-metre draft that balances offshore stability with shallow-water access

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.

The newsletter

New boats, new stories. Every week, everywhere.

One email from the fleet — boats newly added, videos newly analysed. No noise.

Report an issue