FCS (fins)

FCS (fins)

FCS (Fin Control System) is a brand as well as type of fin set-up which allows for more versatility in the placement and style of the fins attached to a surfboard. The FCS style can be used as the traditional tri-fin placement or a five fin or C5 set up. The tri-fin placement meaning three fins on the underside of the board, often with the two outer fins angled inward and middle fin a few inches closer to the end of the tail pointed straight and larger. The C5 placement is similar but with four outer fins and one middle fin (these fins are often smaller).

Some styles enable the rider to adjust the fore and aft positioning of the fin. They are designed to break off in the event of collision to minimize board damage and injury to the surfer.