General Electric T-58

The General Electric T58 is an American turboshaft engine developed for helicopter use. First run in 1955, it remained in production until 1984, by which time some 6,300 units had been built. On July 1, 1959, it became the first turbine engine to gain FAA certification for civil helicopter use.

T58s, have been converted to turbojet by the removal of the power turbines and  were used as jet engines on the following