This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
Collection Item Summary:
In response to an Army request in 1943 for a 3,000 - 4,000 lb (13,344 - 17,792 N ) thrust turbojet, GE proposed the I-40, a centrifugal-flow engine that could be produced in a short time. Service as the J33 began in 1945 on the Lockheed P-80A, America's first operational jet fighter, and its primary application.
For wartime needs, production was licensed to the Allison division of General Motors. When the war ended, the Army re-evaluated its engine program, and turned over all production to Allison.
The J33 was GE's first turbojet engine of its own design, its last all-centrifugal-flow engine; as well as the last to be used in U.S. military combat aircraft. It powered other first generation jet aircraft including: Martin XB-51; Lockheed XP-81, F-80A/B/C, RF-80A, QF-80F, XF-14/A, TF-80C, T-33A/B, AT-33A, DT-33A/B/C, RT-33A, QT-33A, WT-33A, T-1A; North American F-86C; Northrop F-89J; and Bell XP-83.
Collection Item Long Description:
- Non Magnetic Metal
- Cadmium Plating
- Compressed Fiber
- Copper Alloy
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Country of Origin
- Type: Turbojet
- Thrust: 17,013 N (3,825 lb) at 11,500 rpm
- Compressor: Single-stage centrifugal
- Combustor: 14 interconnected straight-through chambers
- Turbine: Single-stage axial
- Weight: 851 kg (1,875 lb)