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No-Vac at speed, 1933 Miss Jarvis on transport trailer, 2010 Hydroplane Miss America II on the Maumee River in Toledo, 1920 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 .
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 ...
A motorboat with an outboard motor. A motorboat or powerboat is a boat that is exclusively powered by an engine; faster examples may be called "speedboats".. Some motorboats are fitted with inboard engines, others have an outboard motor installed on the rear, containing the internal combustion engine, the gearbox and the propeller in one portable unit.
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).
In sailing and boating, a vessel's freeboard is the distance from the waterline to the upper deck level, measured at the lowest point of sheer where water can enter the boat or ship. [1] In commercial vessels, the latter criterion measured relative to the ship's load line , regardless of deck arrangements, is the mandated and regulated meaning.
The Taregh (Persian: طارق) is a class of fast patrol boat used by naval forces of Iran. [1]A Boghammar is a High Speed Patrol Boat for use in coastal patrol. The term Boghammar originated from the Iranian patrol boats manufactured by the Swedish company Boghammar Marin AB during the 1980s used in the Iran–Iraq War and its Tanker War.