Autopilot operation can be monitored on the attitude indicator and horizontal situation indicator (HSI). The attitude director indicator (ADI) has flight director (FD) command bars that come into view when the respective flight director is engaged. Command bars provide steering information to the pilot when the aircraft is being flown manually. For automatic flight, the command bars provide the pilot with a visual indication of what the autopilot is doing.
Wednesday, July 6, 2011
L-1011 Autoflight: ADI and HSI (22-5)
Autopilot operation can be monitored on the attitude indicator and horizontal situation indicator (HSI). The attitude director indicator (ADI) has flight director (FD) command bars that come into view when the respective flight director is engaged. Command bars provide steering information to the pilot when the aircraft is being flown manually. For automatic flight, the command bars provide the pilot with a visual indication of what the autopilot is doing.
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