New England Air Museum
General Electric YT58-GE-2A Cutaway


Courtesy of the National Museum of Naval Aviation


Born from a proposal to the U.S. Navy in 1953 for an advanced helicopter engine, the T58 first flew in February, 1957 and quickly gained popularity with helicopter manufacturers.

This early example powered a Kaman HU2K-1 Seasprite. Another engine of the same version was used in the Kaman K-16B experimental VTOL aircraft.

Variants of the the T58 were used in aircraft included:

  • Bell UH-1F, X-22
  • Boeing CH-46 Sea Knight
  • Sikorsky SH-3 Sea King, HH-3B/C/E/F, HH-52 Seaguard, S-61L/N, S-62, S-67, S-72

This engine is located in the Civilian Hangar near the Sikorsky HH-52A.

If you have any information, or comments on the General Electric T58, please contact This e-mail address is being protected from spambots. You need JavaScript enabled to view it. .


Type: Turboshaft
Compressor Stages: 10
Turbine: 1 high-pressure, 2 low-pressure
Weight: 305 lbs.
Power:: ~1,300 hp
Maximum rpm:: 19,500
NEAM Id:: 21


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