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
Inspection of a T58 engine before installation in a SH-3G Sea King helicopter
The Sikorsky SH-3 Sea King is an American twin-engine anti-submarine warfare helicopter designed and built by Sikorsky Aircraft. A landmark design, it was one of the first ASW rotorcraft to use turbos