12’6″ (3.81m) beach knockabout for inboard or outboard engines. For construction in plywood or as a mould for grp/frp.
Draught inboard version 1’7″ (0.48m). Draught outboard 8″ (0.2m). Beam 5’10”. Weight without motor of 300 lbs (136 kg), she seats 5 adults.
Outboard Engine Version: Takes up to 50hp. Tows skis with 10hp or over. 10hp gives 15mph. 18hp gives 22mph. 30hp gives 25mph. 40hp gives 33mph and 50hp gives 37mph.
Inboard Engine Version: Takes up to 150hp. Tows skis with 36hp or over. 36hp with direct drive gives 25mph. 60hp with direct drive gives 30mph. 100hp direct drive gives 34mph.
Inboard/outdrive units give slightly better performances.