The South Coast 21 is an American trailerable sailboat that was designed by Carl Alberg as a daysailer and first built in 1965.
[4] The design was built by South Coast Seacraft in the United States, between 1965 and 1979, with 300 boats completed, but it is now out of production.
[1] The South Coast 21 is a recreational keelboat, built predominantly of fiberglass, with wood trim.
The hull has a spooned, raked stem; a raised counter, angled transom, an internally mounted spade-type rudder controlled by a tiller and a fixed fin keel.
[3] The boat is supported by an active class club that organizes racing events, the South Coast Seacraft Owners' Association.
[6] In a 2010 review Steve Henkel wrote, "the classic low freeboard, narrow beam, and Star Boat-like underbody appeal to us as being a great combination for daysailing and club one-design racing.