AFCS: Friend or Foe?

An automatic flight control system (AFCS) is usually a very helpful friend. But as friends sometimes do, the AFCS can come back and bite you when you least expect it.

Full-regime automatic flight control systems (AFCS) consist of at least a flight director (FD) and an autopilot (AP). “Full regime” means the AFCS has enough modes to control the aircraft from after takeoff to short final. It also means the AP controls the trim to operate over the full airspeed and centerof- gravity envelope. Selecting […]
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