General Electric J79

The J79 engine is one of the first turbojet engines in the United States to compete with the UK leading engines in the industry. The beginning of engine design dates back to the 50s of the 20th century (the General Electric project was initially called J73-GE-X24A). The engine was supposed to provide speed up to 2 speeds of sound. The J79 is a single-shaft gas turbine engine with a 17-stage compressor with a new arrangement of stator vanes to provide the same pressure as in a two-stage compressor, but with a significant reduction in weight. The compressor blades are made of martensitic stainless steel.

The first engine test during flight occurred in 1955 . The engine was placed on a B-45 Tornado bomber equipped with General Electric J47 engines . The J79 engine was housed in the bomb bay, and 4 General Electric J47 engines were shut off. The flight took place on a single engine J79. The first flight after the test took place on February 17, 1956 on the Lockheed F-104 Starfighter aircraft. The engine has proven itself in terms of its performance. However, during the Vietnam War , a serious flaw was discovered - a clearly visible smoky exhaust. The engine was produced for more than 30 years, 16950 engines were produced - in the USA and under license - in Israel and Germany .

Currently in operation are more than 2500 engines. The use of the engine is expected until 2020.

• F-104 Starfighter
• B-58 Hastler
• F-4 Phantom II
• A-5 Vigillent
• IAI "Kfir"
• F-16 /79

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  Bomber B-58 "Hustler"

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  Fighter F-16

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  Fighter "Kfir"

• Type: turbojet
• Length: 5.3 m
• Diameter: 0.993 m
• Dry weight: 1750 kg
• The number of stages of the compressor - 17
• The number of stages of the turbine - 3

• Axial load (thrust) - 52.9 kN, 79.3 kN - with afterburner
• Total pressure ratio: 13.5: 1
• Turbine outlet gas temperature: 655 ° C
• Axial Strength to Weight Ratio: 4.6: 1
• The specific fuel consumption during afterburner is 1.965 (kg / h) / kgf

• List of aircraft engines

• Description of the engine on the official website of General Electric
• Description of the engine in the aviation encyclopedia