The Tempest is a trailerable,

one-design One-design racing is a racing method which may be adopted in sports using complex equipment, whereby all vehicles have identical or very similar designs or models, avoiding the need for a Handicapping, handicap system. Motorsport One-make racing ...

racing In sports, racing is a competition of speed, in which competitors try to complete a given task in the shortest amount of time. Typically this involves traversing some distance, but it can be any other task involving speed to reach a specific g ...

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

British British may refer to: Peoples, culture, and language * British people, nationals or natives of the United Kingdom, British Overseas Territories and Crown Dependencies. * British national identity, the characteristics of British people and culture ...

naval architect This is the top category for all articles related to architecture and its practitioners. {{Commons category, Architecture by occupation Design occupations Occupations Occupation commonly refers to: *Occupation (human activity), or job, one's rol ...

Ian Proctor Ian Douglas Ben Proctor (12 July 1918 – 23 July 1992) was a British designer of boats, both sailing dinghies and cruisers. He had more than one hundred designs to his credit, from which an estimate of at least 65,000 boats were built. His pio ...

and first built in 1965.Sherwood, Richard M.: ''A Field Guide to Sailboats of North America, Second Edition'', pages 116-117.

Houghton Mifflin Company Houghton Mifflin Harcourt Company ( ; HMH) is an American publisher of textbooks, instructional technology materials, assessments, and reference works. The company is based in the Boston Financial District. It was formerly known as the Houghto ...

, 1994.

Production

In the past the design was built by O'Day Corp. and Plastrend/Composite Technologies 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 ...

and by Lanaverre in

France France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlan ...

. A total of 1199 boats had been reported as built by 2023. Today it is built by Mader Bootswerft of

Germany Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total popu ...

and remains in production.

Design

The Tempest is a racing

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 ...

, with wood trim. It has a fractional sloop rig with

aluminum Aluminium (or aluminum in North American English) is a chemical element; it has chemical symbol, symbol Al and atomic number 13. It has a density lower than that of other common metals, about one-third that of steel. Aluminium has ...

spars. The hull has a spooned raked stem, a plumb transom, an internally mounted spade-type

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 lifting, weighted, bulb

keel The keel is the bottom-most longitudinal structural element of a watercraft, important for stability. On some sailboats, it may have a fluid dynamics, hydrodynamic and counterbalancing purpose as well. The keel laying, laying of the keel is often ...

. It displaces and carries of lead keel ballast. Construction includes three transverse bulkheads to aid flotation. The boat has a rear deck above the rudder. The boat has a draft of with the keel locked in the extended position. For sailing the design is equipped with a single trapeze, an unusual feature on a keelboat. Jib and

mainsail A mainsail is a sail rigged on the main mast (sailing), mast of a sailing vessel. * On a square rigged vessel, it is the lowest and largest sail on the main mast. * On a fore-and-aft rigged vessel, it is the sail rigged aft of the main mast. T ...

windows for visibility are permitted in the class rules, but the sizes are controlled. The design has a Portsmouth Yardstick DP-N racing average handicap of 83.4 and an RYA-PN of 942. It is normally raced with a crew of two

sailor A sailor, seaman, mariner, or seafarer is a person who works aboard a watercraft as part of its crew, and may work in any one of a number of different fields that are related to the operation and maintenance of a ship. While the term ''sailor'' ...

Operational history

The boat was selected as an Olympic class and raced at the

1972 Within the context of Coordinated Universal Time (UTC) it was the longest year ever, as two leap seconds were added during this 366-day year, an event which has not since been repeated. (If its start and end are defined using Solar time, ...

and the

1976 Summer Olympics The 1976 Summer Olympics (), officially known as the Games of the XXI Olympiad () and officially branded as Montreal 1976 (), were an international multi-sport event held from July 17 to August 1, 1976, in Montreal, Quebec, Canada. Montreal ...

. The boat is supported by an active class club that organizes racing events, the ''International Tempest Class Association''. In a 1994 review Richard Sherwood wrote, "the International Class Tempest was an Olympic boat in 1972 and 1976. She is fast. Tempest is a one-design, and class rules are strict ... The mast’s design and material are optional, but the mast may not rotate. Older boats have thicker, stiffer masts and, in addition to the diamond shrouds and spreaders found today, additional swept-back spreaders. Good racing boats are light at the ends and rigid, although this is not necessary in the deck ... Only one person may use the trapeze, and safety equipment is required."

Racing

References

External links