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A hydroplane (or hydro, or thunderboat) is a fast motorboat, where the hull shape is such that at speed, the weight of the boat is supported by planing forces, rather than simple buoyancy. A key aspect of hydroplanes is that they use the water they are on for lift rather than buoyancy, as well as for propulsion and steering : when travelling at ...
Hull speed or displacement speed is the speed at which the wavelength of a vessel's bow wave is equal to the waterline length of the vessel. As boat speed increases from rest, the wavelength of the bow wave increases, and usually its crest-to-trough dimension (height) increases as well. When hull speed is exceeded, a vessel in displacement mode ...
US Navy SWCCs train with a modified go-fast boat during a training exercise in Mississippi. A typical go-fast is laid-up using a combination of fibreglass, kevlar and carbon fibre, using a deep "V" style offshore racing hull ranging from 6.1 to 15.2 metres (20 to 50 ft) long, narrow in beam, and equipped with two or more powerful engines, often totalling more than 750 kilowatts (1,000 hp).
Crusader was a jet-powered speed boat piloted by John Cobb. The combination of an aerodynamically stable hull form and turbojet propulsion was proposed by Reid Railton, Cobb's adviser. A rocket-powered scale model was tested at Haslar. The full size design was by Peter du Cane and built by Vospers of Portsmouth.
In 1955, Chris-Craft created The Plywood Boat Division which marketed both Kit and pre-built plywood craft. [2] By 1960, wooden powerboats had become rare since most new vessels used fiberglass or other lightweight materials, including fiber reinforced plastic materials to reduce weight and maximize speed, particularly in racing craft. The art ...
Apparent wind is the wind velocity (direction and speed), V A, measured aboard a moving sailing craft; it is the net effect of the boat wind, V B —the air flow over the craft induced by its speed over the earth (equal to in magnitude, but opposite in direction to the craft's speed)—and the true wind, V T.
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A high-speed craft (HSC) is a high-speed water vessel for civilian use, also called a fastcraft or fast ferry. The first high-speed craft were often hydrofoils or hovercraft , but in the 1990s catamaran and monohull designs become more popular.