Wright Cyclone R-1820-97 (Studebaker), Radial 9 Engine

Object Details

Physical Description: Type: Reciprocating, 9 cylinders, radial, air-cooled; Power rating: 895 kW (1,200 hp) at 2,500 rpm; Displacement: 29.88 L (1,823 cu in.); Bore and Stroke: 155.6 mm (6.125 in.) x 174 mm (6.875 in.); Weight (dry): 595 kg (1,310 lb)
Summary: Developed in 1927 with a rating of 429 kW (575 hp), the Wright Cyclone air-cooled engine gained favor among aircraft builders because of its high fuel economy, long service life, easy and economical maintenance, and low weight/horsepower ratio. Through progressive improvements, the rating of later models was raised to an impressive 895 kW (1,200 shp) for takeoff.; Air-cooled radial engines such as the Wright Cyclone and Pratt & Whitney Wasp became the standards for naval aircraft. Their advantages also appealed to designers of commercial air transports. With few exceptions, commercial air transports throughout the world relied on air-cooled radial engines until the advent of jet engines.; This R-1820-97 was manufactured under license by Studebaker. A total of 64,093 R-1820-97 engines were built between July 1942 and October 1943, more than any other model in the R-1820 series. The -97 powered the Boeing B-17E/F/G, Douglas B17F-DL/-19G-DL, Vega B17F-VE/17G-VE, and Northrop N-1-25A.

1936-1940

Materials: Metal
Dimensions: 3-D (on stand): 121.9 × 139.7 × 167.6cm, 596.5kg (4 ft. × 4 ft. 7 in. × 5 ft. 6 in., 1315lb.); Overall (see note): 122.5 × 140cm, 596.5kg (4 ft. 1/4 in. × 4 ft. 7 1/8 in., 1315lb.)

National Air and Space Museum

GUID (Link to Original Record): http://n2t.net/ark:/65665/nv91f3b9da7-ccaa-4d4e-8887-050ad6565e9f