Object Details
Manufacturer
Hitachi
Physical Description
Type: Reciprocating, 9 cylinders, single row, radial, air-cooled
Power rating: 373 kW (500 hp) at 2,300 rpm
Displacement: 17.9 L (1,092 cu in)
Bore and Stroke: 114 mm (4.48 in.) x 119 mm (4.69 in.)
Weight: 337 kg (743 lb)
Summary
The Japanese conglomerate Hitachi manufactured aircraft engines from about 1929 until the end of World War II, with a concentration on low-power seven and nine cylinder radials and inverted inline fours. The Hitachi Aircraft Company was formed in 1939 to take over the aircraft and aero-engine branches of the Tokyo Gasu Denki K.K. or Tokyo Gas & Electric Co., Ltd. Many, if not most, Japanese military trainers were powered by Hitachi copies of German designed Hirth air-cooled inline engines, but others featured radial engines.
The most important aircraft powered by this engine was probably the Tachikawa Ki-54, a twin engine multi-purpose trainer, also having a light transport version which was built in small numbers as the Y-59 for civil operators.
Credit Line
Transferred from the U.S. Navy, Naval Supply Center, Cheatham Annex, Williamsburg, Virginia
Date
Circa World War II
Inventory Number
A19731553000
Restrictions & Rights
Usage conditions apply
Type
PROPULSION-Reciprocating & Rotary
Materials
Ferrous Alloy
Non-Magnetic Metals
Possible Magnesium
Paint
Adhesive Tape
Dimensions
Approximate: 137.2 × 121.9 × 111.8cm (4 ft. 6 in. × 4 ft. × 3 ft. 8 in.)
3-D (Cone): 33 × 40.6cm (1 ft. 1 in. × 1 ft. 4 in.)
Country of Origin
Japan
See more items in
National Air and Space Museum Collection
Data Source
National Air and Space Museum
Link to Original Record
Record ID
nasm_A19731553000