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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.
Later that year the US Navy awarded Wright a contract to develop two new air-cooled radial engines. 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 ]
Modification with two 3,250 pounds-force (14.5 kN) J34 jet engines to increase power on take-off, and 3,500 horsepower (2,600 kW) R-3350-32W piston engines. [43] The J34 engines and R-3350 had a common fuel system burning AvGas rather than having dedicated jet fuel (as did all Neptunes with jets except the Kawasaki P-2J).
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 ...
The Wright R-3350 Turbo-compound engine used on later models of the L-1049. In 1950, Lockheed had repurchased the XC-69 Constellation prototype from the Hughes Tool Company. The XC-69 was equipped with four Pratt & Whitney R-2800 radial engines instead of the Wright R-3350s used on production models. Lockheed had installed R-2800s on the ...
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 ...
It was based at Wright Field from January to November 1942. [2] [b] In 1943, the Wright R-3350 engines were replaced with liquid-cooled W24 Allison V-3420-11 by the aircraft division of Fisher Body in support of the XB-39 project. [4] [5] As part of the program, it was equipped with engine driven auxiliary powerplants.