The F16 is a racing sailboat, with the hulls built predominantly of carbon fibre foam sandwich. It has a fractionalsloop rig with aramid film sails, aluminium spars and a rotating mast stepped on the forebeam. The hulls have reverse stems and plumb transoms. The twin, carbon fibre, transom-hung, kick-up rudders are controlled by a tiller. It has twin, retractable, carbon fibre daggerboards, one in each hull. The daggerboards may be straight or curved for hydrofoiling. The mainsheet has a 10:1 mechanical advantage while the mainsail Cunningham is 16:1 and jib Cunningham is 4:1. It displaces 280 lb (127 kg) empty and ready-to-sail.[1][3][5]