A light-displacement trailer-sailer from 1975, the Calypso can be towed behind a small car. She has
an unusual arrangement of twin lifting keels, raised and lowered by a pair of winches on the bridgedeck. She has a masthead rig, a very shallow forefoot and flat, dinghy-like underwater sections. The two bilge plates are toed-in to provide lift to windward and should be ‘tacked’ for decent performance upwind. Handling under sail is lively – in strong winds her crew will be obliged to play the mainsheet, dinghy-style. There are four berths with sitting headroom, separated by the
galley and sink amidships. There’s space for a chemical toilet between the two forward berths.

 LOA 5.76m (18ft 11in), LWL 4.8m (15ft 9in) Beam 2.13m (7ft), Draught plates up 0.3m (1ft),
plates down 1.04m (3ft 5in), Displacement 680kg (1,500lb). Price guide: £800 to £3,000. YM Test Report May 1975.