Object Details
- Physical Description
- Type: Reciprocating, 24 cylinders, X-configuration, Fuel injected, Liquid cooled,
- Power rating: 1,864 kW (2,500 hp) at (Unknown) rpm
- Displacement: 63.4 L (3,868 cu in.)
- Bore and Stroke: 145 mm (5.71 in.) x 160 mm (6.30 in.)
- Weight: Unknown
- Summary
- During the mid-1930s, the Japanese had an interest in powerful, low frontal area engines. Around 1940, the Japanese Navy began development of the YE3A, a 24-cylinder, liquid-cooled, X-type engine, derived from the 18-cylinder YE2A, having the same bore and stroke as the YE2H. By 1943, an experimental engine, known as Ken No. 1 (believed to be this YE3B, or Ha74 Model 01), was being developed and tested by the Yokosuka Naval Air Arsenal for internal wing installation. A similar engine for internal fuselage installation, known as Ken No. 2 (believed to be the YE3E, also Ha 74 Model 11), was rated at 2,386 kW (3,200 shp) and scheduled for completion in 1944.
- However, none of the several high power liquid-cooled engines under development by Japan could keep up with the faster development of air-cooled radial engines, and did not reach operational status by the war’s end. Also the focus of international engine development had turned toward turbine engines.
- Credit Line
- Transferred from the U.S. Air Force Museum
- Circa World War II
- Inventory Number
- A19670119000
- Restrictions & Rights
- Usage conditions apply
- Type
- PROPULSION-Reciprocating & Rotary
- Materials
- Aluminum, Rubber, Steel, Textile, Paint, Preservative coating, Copper, Magnesium, Wood
- Dimensions
- Depth 182.9 cm (72 in.), Length 228.6 cm(90 in.), Width 175.3 cm (69 in.)
- Country of Origin
- Japan
- See more items in
- National Air and Space Museum Collection
- National Air and Space Museum
- Record ID
- nasm_A19670119000
- GUID (Link to Original Record)
- http://n2t.net/ark:/65665/nv9036e61a7-f0c6-41d7-b721-5479c0d07c87
