first prototype 1986

explaining the concept to Bruce Wylie during the PNG Cup: the concaves deepen tailwards and spiral outwards, raising a ridge on the underside. No fin is required. Good speed potential in a straight line, not so good around corners! - tended to stall when carve gybing. Home made, glass-reinforced epoxy over expanded polystyrene core

second prototype 1988

made by Wind Action, Surfers' Paradise, Australia. Tested by Dave Ewer, top board sailor in the south-west of England...