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The Ishikawajima-Harima J3 was a Japanese turbojet aircraft engine. It was the first jet engine designed and built in Japan after the Second World War and was used to power the Fuji T-1 trainer and as a booster engine in the Kawasaki P-2J patrol aircraft.
Design and development[]
Development of the J-3, the first Japanese post-war jet engine,[1] intended to power the Fuji T-1 jet trainer, was begun in 1955 by the Nippon Jet-Engine Company, with Ishikawajima-Harima Heavy Industries (IHI) being designated prime contractor in 1959.[2][3] The resulting engine was a small, simple axial-flow turbojet.
The first pre-production engine began flight testing in a Curtiss C-46 testbed in February 1960, with production deliveries beginning in April 1962.[4]
Operational history[]
While the J-3 was designed to power the Fuji T-1, it was not ready in time and the first version of the T-1 was powered by imported British Bristol Orpheus engine. The J3-IHI-3 version of the engine equipped the later T-1B version.[4] A more powerful version of the J-3, the J3-IHI-7 was used to re-engine the T-1Bs and as booster engines for the Kawasaki P-2J maritime patrol aircraft.[5]
Variants[]
- J3-1
- Prototype.[3]
- J3-IHI-3
- Initial production version for Fuji T-1B trainer. 11.8 kN (2,645 lbf) thrust.[4]
- J3-IHI-7
- More powerful version used as auxiliary engine in the P-2J and to re-engine T-1B trainers. 13.7 kN (3,080 lbf) thrust.[5]
- J3-IHI-F
- Proposed turbofan variant.[4]
Applications[]
Specifications (J3-IHI-7C)[]
Data from Jane's All The World's Aircraft 1976–77[5]
- General characteristics
- Type: Axial flow turbojet
- Length: 1,661 mm (65.4 in) (without tailpipe)
- Diameter: 627 mm (24.7 in)
- Dry weight: 430 kg (948 lb) (with accessories)
- Components
- Compressor: Eight-stage axial compressor
- Combustors: annular combustion chamber with 30 fuel supply pipes and vapouriser tubes
- Turbine: single-stage axial-flow
- Fuel type: JP-4 jet fuel
- Performance
- Maximum thrust: 13.7 kN (3,080 lbf) (take-off power)
- Overall pressure ratio: 4.5:1
- Air mass flow: 25.4 kg/s (56 lb/s)
- Specific fuel consumption: 106.9 kg/kN hr (1.05 lb/lbf hr)
- Thrust-to-weight ratio: 3.2:1
References[]
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Wikimedia Commons has media related to Ishikawajima-Harima J3. |
- "Japan's Aircraft Industry:Engines". Flight, 9 October 1976, p. 1150.
- Taylor, John W. R. Jane's All The World's Aircraft 1966–67. London:Sampson Low, Marston & Company, 1966.
- Taylor, John W. R. Jane's All The World's Aircraft 1976–77. London:Jane's Yearbooks, 1976. ISBN 0-354-00538-3.
The original article can be found at Ishikawajima-Harima J3 and the edit history here.