BoatsAlpha Cat 18

Alpha Cat 18

Catamaran, twin daggerboards · Frac. Sloop (Rotating Spar) · First built 1970

A 1970 Tom Roland design featuring a rotating spar and twin daggerboards on an ultra-light 136-kilogram hull

Designed by Tom Roland, built by Glastron.

LOA
Beam
Draft (max)
Displacement
Hull type
Catamaran Twin Dbrd.

The record

Full specifications

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

Dimensions
Weights
Rig & sail area
Rig
Frac. Sloop (Rotating Spar)
Ratios
SA / displacement
87.2
Hull
Hull type
Catamaran Twin Dbrd.
Construction
Fiberglass
Production
Years built
First built 1970
Designer
Tom Roland
Builder
Glastron

Boats like this, on the water

Nobody has filmed this one — but these are close.

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Supercat 154.65 mSame hull family0.8 m shorterA high-performance beach catamaran with a rotating spar and an exceptional sail-area-to-displacement ratio
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Hobie 21 SE6.48 mSame hull family1.0 m longerA high-performance catamaran with a rotating spar, originally developed as a one-design for professional racing
A 5,500 km Journey Across the Amazon on Two Hobie Cat Sailboats5:53from Hashtag Sal

The family

Boats like this

Nearby designs by size, type, and era — worth a look alongside her.

AMF Alcort Trac-18Frac. Sloop (Rotating Spar) · 5.49 mPacific CatamaranFrac. Sloop (Rotating Spar) · 5.72 mC2 F18A Greg Goodall design built for the Formula 18 class, featuring a rotating spar and a 21-square-metre spinnakerApollo 18An early A-class single-handed catamaran featuring a rotating spar and an exceptionally high sail-area-to-displacement ratio

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