The mainsail is of fairly low aspect ratio with four battens, the top being full length. . The original jib was very small, sheeting to the aft end of the foredeck. The larger jib extends aft to the shrouds, sheeting to the inner edge of the side tanks just forward of the thwart. The original mast is a very stiff Proctor aluminium mast with short, round section spreaders. The mast is stepped just aft of the fore bulkhead on the top of the centreboard case. If a later, softer mast is used then a mast gate at deck level is needed to control sideways bend. Originally all booms were wooden.
Sails were originally made in cotton, then terylene by J R Williams in the 60s, all characteristically very flat. In the 80s SM in Bristol made several sets, these were made of fairly thin cloth with insufficient reinforcement. In the 80s and 90s Mac Namara made a few very good sets with the larger jib, and Rockalls made a few sets of cheaper cloth to the original dimensions in the 90s. Osen also made a good set with a larger jib in the 90s.
Length 14' (4.27m), Beam 5'10'' (1.78m), Sail Area 111 sq.ft. (original sail area, 10.31 sq.m), weight 207lb. (94kg)