S-Classes

S-classes means Sport Outboards. Boats are mainly catamaran type and engines use gasoline as fuel. Some modifications may be done in engine.

S-500 Aldur Raudva (EST) 1991, three World records

S-550 2008 Mikk Joala (EST)

S-850 Sami Pennanen (FIN), World Champion

F-4 (F4s, SL-60) Matthew Palfreyman 2011

SE Bonvincini and Vassena