Ishikawajima-Harima J3

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J3-IHI-3 02.jpg
Type Turbojet
National origin Japan
Manufacturer Ishikawajima-Harima
Major applications Fuji T-1
Kawasaki P-2J

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[edit]

Development of the J3, 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[edit]

While the J3 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 J3, 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]


J3-IHI-3 01.jpg
Nippon Jet-Engine Company prototype.[3][6]
Initial production version for Fuji T-1B trainer. 11.8 kN (2,645 lbf) thrust.[4]
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]
Aft-fan variant[4] — the later Ishikawajima-Harima F3 turbofan engine began flights in 1985.[7]


Specifications (J3-IHI-7C)[edit]

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)



See also[edit]

Related lists


  1. ^ Flight International 9 October 1976, p. 1150.
  2. ^ Flight International 28 June 1962, p. 1012.
  3. ^ a b Taylor 1966, p. 492.
  4. ^ a b c d Taylor 1966, pp. 492–493.
  5. ^ a b c Taylor 1976, pp.735–736.
  6. ^ Bridgman, Leonard, ed. (1959). Jane's all the World's Aircraft 1959–60. London: Sampson Low, Marston & Co. Ltd. p. 512. 
  7. ^ Hamada, T., Akagi, M., Toda, D., Shimazaki, H., & Ohmomo, M. (1989). T-4 Inlet/Engine Compatibility Flight Test Results. Presented at the AIAA/ASME/SAE/ASEE 25th Joint Propulsion Conference, Monterey, CA: American Institute of Aeronautics and Astronautics.