The Ishikawajima-Harima J3 was a Japanese

turbojet The turbojet is an airbreathing jet engine which is typically used in aircraft. It consists of a gas turbine with a propelling nozzle. The gas turbine has an air inlet which includes inlet guide vanes, a compressor, a combustion chamber, and ...

aircraft engine An aircraft engine, often referred to as an aero engine, is the power component of an aircraft propulsion system. Most aircraft engines are either piston engines or gas turbines, although a few have been rocket powered and in recent years many ...

. It was the first jet engine designed and built in Japan after the

Second World War World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...

and was used to power the

Fuji T-1 The Fuji T-1 was Japan's first jet-powered trainer aircraft. Its first flight was in January 1958. A total of 66 T-1 planes were built.Simpson 2001, p.246 It was retired in March 2006. Design and development After World War II, Japanese aircra ...

trainer and as a booster engine in the

Kawasaki P-2J The Kawasaki P-2J (originally P2V-Kai) is a maritime patrol aircraft, maritime patrol and Anti-submarine warfare, ASW aircraft developed for the Japan Maritime Self-Defense Force. A turboprop-powered version of the radial-engined P-2 Neptune, th ...

patrol aircraft.

Design and development

Development of the J3, the first Japanese post-war jet engine,''Flight International'' 9 October 1976, p. 1150. intended to power the

jet trainer, was begun in 1955 by the Nippon Jet-Engine Company, with

Ishikawajima-Harima Heavy Industries , formerly known as , is a Japanese engineering corporation headquartered in Tokyo, Japan that produces and offers ships, space launch vehicles, aircraft engines, marine diesel engines, gas turbines, gas engines, railway systems, turbochargers f ...

(IHI) being designated prime contractor in 1959.''Flight International'' 28 June 1962, p. 1012.Taylor 1966, p. 492. The resulting engine was a small, simple axial-flow turbojet. The first pre-production engine began flight testing in a

Curtiss C-46 The Curtiss C-46 Commando is a twin-engine transport aircraft derived from the Curtiss CW-20 pressurised high-altitude airliner design. Early press reports used the name "Condor III" but the Commando name was in use by early 1942 in company pub ...

testbed in February 1960, with production deliveries beginning in April 1962.Taylor 1966, pp. 492–493.

Operational history

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 The Bristol Siddeley Orpheus was a single-spool turbojet developed by Bristol Siddeley for various light fighter/trainer applications such as the Folland Gnat and the Fiat G.91. Later, the Orpheus formed the core of the first Bristol Pegasus ...

engine. The J3-IHI-3 version of the engine equipped the later T-1B version. 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.

Variants

;J3-1 : Nippon Jet-Engine Company prototype. ;J3-IHI-3 :Initial production version for Fuji T-1B trainer. 11.8 kN (2,645 lbf) thrust. ;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. ;J3-IHI-7C: for take-off. ;J3-IHI-8: for take-off. ;J3-IHI-F: Aft-fan variant, . — the later

Ishikawajima-Harima F3 The Ishikawajima-Harima Heavy Industries (IHI) F3 is a low bypass turbofan engine developed in Japan by Ishikawajima-Harima Heavy Industries for the Kawasaki T-4 jet trainer aircraft. The first prototype engine, the XF3, was manufactured in 198 ...

turbofan engine began flights in 1985.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.

Applications

Specifications (J3-IHI-7C)

Design and development

Operational history

Variants

Applications

Specifications (J3-IHI-7C)

See also

References

Further reading