BoatsPolynesian Concept

Polynesian Concept

Catamaran, twin daggerboards · Masthead Sloop · 1970–1972

A Rudy Choy-designed catamaran featuring a high sail-area-to-displacement ratio for spirited performance

Designed by Csk & Rudy Choy, built by W. D. Schock Corp.

LOA
Beam
Displacement
Hull type
Catamaran Twin Dbrd.

Is it for you?

Character

Where this design lands on the numbers a shopper trusts — read straight from her own ratios.

Shoal draftDraws 0.48 m, board up where she has one — creeks, sandbars and thin anchorages most keels have to stay out of.
LightHeavy

87 — light for her waterline, so she is easily driven and quick to accelerate.

Displacement / length 87
EasygoingPowered-up

41.5 — a lot of sail for her weight; powered-up and eager, a real performer.

Sail area / displacement 41.5
  • Lighter than ~87% of boats her size on file
  • Narrower than ~83% of boats her size on file

Compared with 215 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
41.5
Displacement / length
86.5
Hull
Hull type
Catamaran Twin Dbrd.
Construction
Fiberglass
Production
Years built
1970–1972
Units built
12
Designer
CSK, Rudy Choy
Builder
W. D. Schock Corp, CSK, Schock W.D

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.

Dragonfly 3510.68 mSame hull family0.6 m shorterA high-performance trimaran with a rotating fractional rig and a 34.54 SA/D ratio built for rapid, stable cruising
Dragonfly 35 - Delivering this fabulous Trimaran from Dartmouth to Troon0:14from Halcyon Yachts - International Yacht Delivery
Athena 3811.60 mSame hull family0.3 m longer
Shipwrecked Catamaran FULL Tour (Dismasted & Nearly Sank!)0:01from Adventureman Dan
Mahe 3611.03 mSame hull family0.3 m shorter
Why is this Catamaran So CHEAP? - Ep 365 - Lady K Sailingfrom Lady K Sailing
Lagoon 3911.70 mSame hull family0.4 m longerA VPLP-designed catamaran featuring a mast stepped further aft for easier handling and a balanced sail plan
How to be a skipper in Greece?10:46from Podcast Maré Sonora ®
Dragonfly 3611.55 mSame hull family0.3 m longerA high-performance trimaran with a 28.12 SA/displacement ratio, offered in both Touring and Performance configurations
Multihull of a sensible sizefrom SEILmagasinet
Prout Ltd. Snowgoose 37 Elite11.28 mSame hull familyNear-identical lengthA wide-beamed cutter-rigged catamaran from a prolific series with over 500 hulls built for shoal-water cruising
Riding The Blue Beast / Sailing 850 Miles To Australia Pt 10:33from The Sailing Brothers

Keep looking

Nothing filmed of this one yet

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

Search the fleet for boats like thisAsk the fleet about the Polynesian Concept

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