Instrumentationhard#437
Autoland (CAT IIIb) requires:
A
Redundant autopilot channels (typically dual or triple) for fail-operational capability
CorrectB
A single autopilot
C
Manual thrust control
D
Visual contact with the runway at 200 ft
Explanation
CAT IIIb autoland requires fail-operational capability, meaning the system can complete the landing after a single failure, needing dual/triple AP channels.
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