In an auto-flight system, modes for stabilising the a/c include which of the following:
- Yaw damper.
- Pitch attitude holding.
- VOR axis holding.
- ASI & Mach hold.
- horizontal wing holding.
- Altitude holding.
1, 2 & 4.
1, 2 & 5.
1, 5 & 6.
2, 4 & 6.