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The Wright R-3350 Duplex-Cyclone is an American twin-row, supercharged, air-cooled, radial aircraft engine with 18 cylinders displacing nearly 3,350 cubic inches (54.9 L). Power ranged from 2,200 to 3,700 hp (1,640 to 2,760 kW), depending on model.
The first, called the P-1, was a 9-cylinder single row design of 1,652 cu in (27.07 L) displacement that was derived from an earlier Lawrence design, it produced 400 hp (300 kW). [2] The second, the P-2, had the same 1,652 cu in (27.07 L) displacement as the P-1, but was an improved design that produced 435 hp (324 kW). [ 2 ]
It was the largest American aircraft to see service in World War II. Each B-29 Superfortress used four of the massive Wright R-3350 - Cyclone 18-cylinder 2,200 horsepower (1,600 kW) engines built at the Dodge Chicago Plant. There were nearly 4000 of these aircraft produced when the B-29 was retired from service in the 1960s.
Wright R-3350 Duplex-Cyclone Turbo-Compound radial engine.. The first aircraft engine to be tested with a power-recovery turbine was the Rolls-Royce Crecy.This was used primarily to drive a geared centrifugal supercharger, although it was also coupled to the crankshaft and gave an extra 15 to 35 percent fuel economy.
When Curtiss-Wright offered an improved version of the Wright R-3350 Duplex-Cyclone, Lockheed began developing an improved version of the L-049 Constellation airliner to be powered by this engine. The new project was designated L-049-84. In addition to the engine change, the wing and fuselage structure were strengthened to allow an increased ...
The Lockheed Constellation ("Connie") was a propeller-driven airliner powered by four 18-cylinder radial Wright R-3350 engines. It was built by Lockheed between 1943 and 1958 at its Burbank, California, US, facility. A total of 856 aircraft were produced in four models, all distinguished by a triple-tail design and dolphin-shaped fuselage.
The ASh-73 was not a reverse-engineered copy of the Wright R-3350 Duplex-Cyclone, itself starting its development in 1937: "There was no need to copy the Wright R-3350-23A; the engine that was put into production was the indigenous ASh-73TK - a further development of the M-71 and M-72, which differed in being fitted with twin TK-19 ...
Utilizing the Wright R-3350 Duplex-Cyclone as a basis, Wright developed a 22-cylinder engine, using R-3350 cylinders arranged as a two-row radial engine with 11 cylinders per row instead of 9. [ 1 ] The air-cooled R-4090 was rated to deliver 3,000 hp (2,200 kW) at 2,800 rpm for take-off, from a total displacement of 4,092 cu in (67.06 L), with ...