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General Electric (Allison) J33 Turbojet Engine Cutaway

National Air and Space Museum

Object Details

Manufacturer
General Electric Aircraft Engines
Physical Description
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)
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.
Credit Line
Transferred from the NASA Lewis Research Center, Cleveland, Ohio
Circa 1944
Inventory Number
A19630437000
Restrictions & Rights
Usage conditions apply
Type
PROPULSION-Turbines (Jet)
Materials
Non Magnetic Metal
Aluminum
Paint
Plastic
Rubber
Fabric
Cadmium Plating
Compressed Fiber
Copper Alloy
Dimensions
Storage: 177.8 x 127 x 134.6cm (70 x 50 x 53 in.)
Country of Origin
United States of America
See more items in
National Air and Space Museum Collection
National Air and Space Museum
Record ID
nasm_A19630437000
Metadata Usage (text)
Not determined
GUID (Link to Original Record)
http://n2t.net/ark:/65665/nv981d98805-bff0-4d75-aa35-bea068c8bbf3

Related Content

  • Propulsion

    Air and Space Museum

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