Image of the Air Force wings with the museum name underneath

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Allison J35-A-35A Turbojet

Originally developed by the General Electric Co., the J35 was the USAF's first axial-flow (straight-through airflow) compressor engine. Late in 1947 complete responsibility for the production of the engine was transferred to the Allison Division of General Motors. More than 14,000 J35s had been built by the time production ended in 1955.

The J35 was used to power the X-5 variable-sweep research aircraft and various prototypes such as the XB-43, XB-45, XB-46, XB-47, XB-48 and XB-49. It is probably best known, however, as the engine used in two of the USAF's leading fighters of the 1950s -- the F-84B/C/D/E/G Thunderjet and the F-89 Scorpion.

The engine on display is one of approximately 500 J35-A-35 series engines modified to the -35A configuration between 1957 and 1960. This type was used in the F-89D, H and J series aircraft.

Model: J35-A-35A
Compressor: 11-stage axial
Turbine: Single-stage axial
Weight: 2,850 lbs. (including afterburner)
Thrust: 5,600 lbs. (7,400 lbs. with afterburner)
Maximum rpm: 8,000
Maximum operating altitude: 50,000 ft.
Cost: $46,000

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