Fairchild Ranger XH-1850-2, H-24 Engine

Object Details

Physical Description: Type: Reciprocating, 24 cylinders, 4 banks of 6 cylinders each, Air-cooled, Supercharged; Power rating: 1,119 kW (1,500 hp) at 3,500 rpm; Displacement: 25.33 L (1,545.6 cu in); Bore and Stroke: 102 mm (4 in.) x 130 mm (5.125 in.); Weight: 787 kg (1,735 lb)
Summary: Ranger Engineering of Farmingdale, New York was a unit of the Fairchild Engine and Airplane Corporation which entered the aircraft engine business in 1925. Initially a manufacturer of radial engines, Fairchild later became a successful manufacturer of air-cooled in-line aircraft engines.; As early as 1935, Fairchild had proposed a 24-cylinder, air-cooled, H-type engine for both commercial transport and military use. Known as an LS-555, this engine was essentially a combination of two 12-cylinder V-770-SG engines. The H-configuration permitted installation in an oval-shaped, narrow fuselage and a gun fired through the propeller shaft.; In May 1943, Ranger proposed to the U.S. Navy Bureau of Aeronautics the design and development of the XH-1850-2 engine, calling for eight engines for development testing, type testing, and preliminary flight installation. Ranger continued work on the XH-1850 until 1946, when the U.S. government, after evaluating progress made by British and American turbojet engine manufacturers, terminated XH-1850 development.

Credit Line: Transferred from the U.S. Navy, Naval Supply Center, Cheatham Annex, Williamsburg, Virginia

Circa 1943

Materials: Non-Magnetic Metal; Ferrous Alloy; Rubber; Unknown Coating; Glass; Possible Salt; Wood; Paint; Adhesive Tape; Electrical Wiring
Dimensions: Overall: 3 ft. 11 1/2 in. × 2 ft. 5 in. × 8 ft., 1735lb. (120.7 × 73.7 × 243.8cm, 787kg); Other: 3 ft. 11 1/2 in. × 8 ft. × 2 ft. 5 in. × 4 ft. 11 in. × 7 ft. 8 in. × 3 ft. 4 in. (120.7 × 243.8 × 73.7 × 149.9 × 233.7 × 101.6cm)

National Air and Space Museum

GUID (Link to Original Record): http://n2t.net/ark:/65665/nv9b296e262-5805-4bbc-8227-951ff68a767b