AviationTire Instrumentation Automatic Flight Control Systems Autopilot Q 4 / 5

In an auto-flight system, modes for stabilising the a/c include which of the following:

  1. Yaw damper.
  2. Pitch attitude holding.
  3. VOR axis holding.
  4. ASI & Mach hold.
  5. horizontal wing holding.
  6. Altitude holding.

1, 2 & 4.
1, 2 & 5.
1, 5 & 6.
2, 4 & 6.