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GENERAL ELECTRIC T-31 TURBOPROP

Posted 10/22/2013 Printable Fact Sheet
 
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General Electric T-31
DAYTON, Ohio -- General Electric T-31 Turboprop engine on display in the Presidential Gallery at the National Museum of the United States Air Force. (U.S. Air Force photo)
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Note: This engine is located in the Presidential Gallery on a controlled-access portion of Wright-Patterson Air Force Base. Click here for requirements to visit this gallery.

The T-31 engine was the first American turboprop engine to power an aircraft. It made its initial flight in the Consolidated Vultee XP-81 on Dec. 21, 1945. The T-31 was mounted in the nose; a J-33 turbojet engine mounted in the rear fuselage provided added thrust. The T-31 was also used on the Navy XF2R-1, similarly powered by a turboprop/turbojet engine combination. The engine was to have been flown experimentally on a Curtiss XC-113 (a converted C-46), but the experiment was abandoned after the XC-113 was involved in a ground accident. Only 28 T-31s were built; none were used in production aircraft, but improved production turboprop engines were developed from the technology pioneered by the T-31.

TECHNICAL NOTES:
Model: T-31-GE-3
Weight: 1,980 lbs.
Maximum hp: 2,300 (design)
Maximum engine rpm: 13,000
Maximum propeller rpm: 1,145

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