FIN MATERIAL PERFORMANCE GLASS. FIN SIZE MEDIUM (65 - 80Kg / 145 - 175 Lbs). FIN SPECS: Side Base 4.40" / 111mm, Depth 4.55" / 116mm, Area 15.17"^2 / 9785 mm^2, Sweep 33.3 degrees, Foil Flat, FIN SPECS: Centre Base: 4.29" / 109mm, Depth: 4.50" / 114
The FCS system (Fin Control System) was designed by Brian A. Whitty in Elanora, Australia, and patented on November 7, 1995. It can be recognized by the 2 tabs on the fins which are designed to fit into a securing plug that attaches the fin to the board.