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The North American P-51 Mustang makes significant use of the Meredith effect in its belly radiator design. [1]The Meredith effect is a phenomenon whereby the aerodynamic drag produced by a cooling radiator may be offset by careful design of the cooling duct such that useful thrust is produced by the expansion of the hot air in the duct.
The engine first ran in 1933 and provided 660 horsepower (490 kW). Only a few engines were built as the aircraft designs intended to use it were not adopted by the Royal Air Force . The Goshawk was used to power the Short Knuckleduster , the Supermarine Type 224 (a predecessor to the Supermarine Spitfire ) and other prototype aircraft.
The engine is based on the Volkswagen air-cooled engine or the Volkswagen Wasserboxer engine. It is extensively modified for aircraft use and all the parts are custom made. The engine is derived from the certified engines produced by the same manufacturer and used in several motorgliders and small aircraft. [1]
The Pratt & Whitney R-4360 Wasp Major is an American 28-cylinder four-row radial piston aircraft engine designed and built during World War II.At 4,362.5 cu in (71.5 L), it is the largest-displacement aviation piston engine to be mass-produced in the United States, and at 4,300 hp (3,200 kW) the most powerful.
The Chrysler XIV-2220 (XI-2220 from 1944) was an experimental 2,500 hp, 2,220 cubic inch (36.4 liter) liquid-cooled inverted-V-16 World War II aircraft engine. Although several aircraft designs had considered using it, by the time it was ready for use in 1945 the war was already over. Only a few engines were built by Chrysler during a program ...
Thus, generally, liquid cooling systems lose capacity as the aircraft climbs. This was a major limit on performance during the 1930s when the introduction of turbosuperchargers first allowed convenient travel at altitudes above 15,000 ft, and cooling design became a major area of research.
The Pratt & Whitney R-2800 Double Wasp is an American twin-row, 18-cylinder, air-cooled radial aircraft engine with a displacement of 2,800 cu in (46 L), and is part of the long-lived Wasp family of engines.
The Rolls-Royce Crecy was a British experimental two-stroke, 90-degree, V12, liquid-cooled aero-engine of 1,593.4 cu.in (26.11 L) capacity, featuring sleeve valves and direct petrol injection.
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