RK 21
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The RK 21 is an American trailerable
sailboat A sailboat or sailing boat is a boat propelled partly or entirely by sails and is smaller than a sailing ship. Distinctions in what constitutes a sailing boat and ship vary by region and maritime culture. Types Although sailboat terminology ...
that was designed by Peter Barrett as a
cruiser A cruiser is a type of warship. Modern cruisers are generally the largest ships in a fleet after aircraft carriers and amphibious assault ships, and can usually perform several operational roles from search-and-destroy to ocean escort to sea ...
and first built in 1972.


Production

The design was built by RK Industries, a subsidiary of Coastal Recreation, Inc, in the
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
. It was built starting in 1972, but it is now out of production.


Design

The RK 21 is a recreational
keelboat A keelboat is a riverine cargo-capable working boat, or a small- to mid-sized recreational sailing yacht. The boats in the first category have shallow structural keels, and are nearly flat-bottomed and often used leeboards if forced in open w ...
, built predominantly of
fiberglass Fiberglass (American English) or fibreglass (English in the Commonwealth of Nations, Commonwealth English) is a common type of fibre-reinforced plastic, fiber-reinforced plastic using glass fiber. The fibers may be randomly arranged, flattened i ...
. It has a
masthead sloop A masthead rig on a sailing vessel consists of a forestay and backstay both attached at the top of the mast. The Bermuda rig can be split into two groups: the masthead rig and the fractional rig. The masthead rig has larger and more headsails, a ...
rig; a spooned,
raked stem The stem is the most forward part of a boat or ship's bow and is an extension of the keel itself. It is often found on wooden boats or ships, but not exclusively. Description The stem is the curved edge stretching from the keel below, up to ...
; a slightly angled transom; a transom-hung
rudder A rudder is a primary control surface used to steer a ship, boat, submarine, hovercraft, airship, or other vehicle that moves through a fluid medium (usually air or water). On an airplane, the rudder is used primarily to counter adverse yaw ...
controlled by a
tiller A tiller or till is a lever used to steer a vehicle. The mechanism is primarily used in watercraft, where it is attached to an outboard motor, rudder post, rudder post or stock to provide leverage in the form of torque for the helmsman to turn ...
and a
swing keel The keel is the bottom-most longitudinal structural element of a watercraft, important for stability. On some sailboats, it may have a hydrodynamic and counterbalancing purpose as well. The laying of the keel is often the initial step in constru ...
. The design displaces and carries of ballast. The boat has a draft of with the swing keel extended and with it retracted, allowing operation in shallow water, beaching or ground transportation on a trailer. The boat is normally fitted with a small
outboard motor An outboard motor is a propulsion system for boats, consisting of a self-contained unit that includes engine, gearbox and propeller or jet drive, designed to be affixed to the outside of the transom. They are the most common motorised method ...
for docking and maneuvering. The design has sleeping accommodation for two people, with two straight settee berths in the main cabin.


See also

*
List of sailing boat types The following is a partial list of sailboat types and sailing classes, including keelboats, dinghy, dinghies, and multihull (catamarans and trimarans). Olympic classes World Sailing Classes Historically known as the IYRU (International Yacht ...


References

{{Trailer sailers and Trailer yachts worldwide Keelboats 1970s sailboat type designs Sailing yachts Trailer sailers Sailboat type designs by Peter Barrett Sailboat types built by Coastal Recreation, Inc