The tri fin Simster has the planing speed of a dual keel Mini-Simmons design but with more directional control because of the small trailing fin. Features side keels designed for drive and long carves. Placed next to a set of wings that are designed for maximum planing width. This 5'6" Simster is an extremely versatile design and can be ridden shorter than a contemporary thruster. Far more planing and paddling speed than one too.