Allison J33-A-23 engine

Allison J33-A-23 engine - Museum of FlyingTurbojet, 1-stage centrifugal compressor, 14 combustion chambers, 1-stage turbine.

This engine is a direct descendent of the Whittle W I/2B series. General Electric improved upon this engine under the engineering team led by Donald F. Truly Warner in April 1942. Two of the first GE series I-A engines, developing 1,250 lbs. Thrust each powered the Bell XP-59 in October 1942.

Progressing in thrust through the series 1-14, 1-16, 1-20 of 1,400, 1600 and 2,000 lbs. The J33 began life as the 1-40 in June 1943 with Dale Streid heading the engineering group. It was first tested at 4,200 lbs. of thrust during Jan/Feb 1944.

First flight was June 1944, in an XP-80A. The production engine was designated J33 with GE building 300 before the program was transferred to Allison in Sept 1945.

Specifications
Diameter: 49.2in
Length: 104.5in
Weight: 1,820Ibs
Weight/Power: .40/lb/lbt


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