Crab, sorry for the thread drift: The first GE electronic supervisory control for the T-58 came to the USN with the T-58-10, around 1966-67, and was called , ( appropriately according to more than a few USN SH-3D pilots ) the PMS. Its in-flight reliability was poor enough to merit SA having to install a PMS cut-off button on the 3D cyclic grips. Thus, when GE announced that the T-700 engine ( for UTTAS -UH-60/61) would arrive with a hybrid hydromechanical and electronic engine control we and I think Boeing were expecting trouble. Turned out that GE had done their homework well and the reliability of the electronic control surpassed that of the hydromechanical unit, and neither were an issue.
Last edited by JohnDixson; 3rd Oct 2020 at 17:40.
Reason: spelling