The Cape Cod Frosty is an American sailing dinghy that was designed by Harwich, Massachusetts harbormaster Thomas Leach as a one-design racer and first built in 1984.
[2] The design is usually amateur constructed from plans in the eastern United States and Canada and is supported by the Cape Cod Frosty Class Association.
[1][2][4][5] The Frosty is a racing sailboat, usually built of wood, using two 4 by 8 ft (1.2 by 2.4 m) sheets of 0.25 in (6.4 mm) plywood and assembled using an epoxy stitch and glue technique.
It features an unstayed catboat single sail rig, with wooden or aluminum spars, a nearly plumb stem, a vertical transom, a transom-hung rudder controlled by a tiller with an extension and a retractable daggerboard.
To ensure equal competition, the class rules require ballasting to a combined boat and crew weight of 214 lb (97 kg), using water-filled plastic jugs.