Cat600 PJOA

A little vintage catamaran for home-build

Polish naval architect Janusz Ostrowski is a specialist in small proas with a crab-claw sail. For once, the prolific designer has come up with a catamaran big enough for coastal trips. The design remains deliciously vintage with high bows and canoe sterns.

Cat600 PJOA

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Published 15/12/2020

By Emmanuel van Deth

Issue: 175

Published: jan. / feb. 2021

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The deep V hulls, like the early Hobie Cats, do without daggerboards, and the small rudders lower and raise depending on the depth of water. The rig (crab-clawed sails, of course) is designed to ensure perfect course-keeping. Mini fins parallel to the surface reduce pitching and act as steps when you’ve taken the ground. A berth in each hull is provided; the trampoline can offer two extra places once the custom-designed tent is set up. Glued plywood construction takes a few hundred hours in total, but each hull can be completed in a week or two depending on your skill levels. The Cat600 is easily dismantled for transport on a trailer.

Length: 20’8” (630 cm)

Beam: 13’2” (402 cm)

Draft: 18” (45cm) with 2 people on board or 22” (55cm) with 890 lb (400 kg) on board

Rigged weight: approx. 555 lb (250 kg)

Weight of each hull: 187 lb (85 kg)

Crew: 2-4 people (maximum load 890 lb/400 kg)

Sail area: 130/150/172 sq ft (12/14/16 m²)

www.pjoa.eu