Engine, Mitsubishi Kasei 21, Ha 32 Model 21, Radial 14 Engine

Object Details

Physical Description: Type: Reciprocating, 14 cylinders, 2 rows, radial, air cooled; Power rating: 1,141 kW (1,530 hp) at 2,450 rpm; Displacement: 42.1 L (2,570 cu in.); Bore and Stroke: 150 mm (5.91 in.) x 170 mm (6.69 in.); Weight: 725 kg (1,598 lb); Missing generator, magneto caps, data plate, exhaust manifold; intake dented.; Imperial Japanese Navy
Summary: Mitsubishi was the first and largest series producer of Japanese engines during World War II, with a 1937 Pratt & Whitney arrangement possibly contributing to this success. The Kasei (Mars) was the largest of the manufacturer’s original 14-cylinder radials, and was widely used in various models. It was geared, supercharged, and had optional water methanol injection. Between 1941 and 1945, a total of 9,323 engines of all models of Kasei 20 series were manufactured.; This Model 21 powered the Mitsubishi G4M twin engine attack bomber (Allied Code Name Betty) built in larger numbers than any other Japanese bomber; it was used from the beginning of the war and also transported the Japanese surrender delegation. A total of 2,446 G4M and the similar G6M1 aircraft were built.

Credit Line: Transferred from the U.S. Navy, Lakehurst Naval Air Station, Lakehurst, New Jersey

Circa World War II

Materials: Steel, Aluminum, Textile, Leather, Rubber, Preservative coating, Copper, Paint, Magnesium
Dimensions: Diameter 134 cm (52.75 in.), Length 170.5 cm (67.125 in.)

National Air and Space Museum

GUID (Link to Original Record): http://n2t.net/ark:/65665/nv9b70d8ea0-0048-4bf7-9efb-7ce4f0cc6baf