SACAA ATPL(H) Aircraft Technical & General Practice Questions - SACAA Airline Transport Pilot Licence (Helicopter) Aircraft Technical & General Knowledge Examination Exam

One channel is active controlling engine parameters while the second channel operates in standby, cross-checking computations Both channels command separate fuel metering valves simultaneously, summing their outputs mechanically Channel A controls engine N1 speed while Channel B independently controls N2 speed without data sharing The active channel alternates every 60 seconds automatically during flight to balance electronic component wear