I’m confused. If you go to the Leonardo site and look in their 139 brochures, they cite the PT6C-67C engine with FADEC, whereas if one goes to the P&W Canada site and check the same engine, P&W says an EEC ( not a dual EEC ) which sort of implies some sort of emergency backup. There were no specifics re the EEC. Anyway, the existence of collective position data obtained from the engine control system electronics ( assuming all on board systems were down ) is iffy.
Last edited by JohnDixson; 3rd Oct 2022 at 19:00.
Reason: Wording