AFCS Flashcards
What sensors does the AFCS use?
AHRS - Attitude
ADU - Barometric hold (some input to the CAC)
Rad Alt - Rad Alt hold
What is the purpose of the CAC?
Pitch Stability (Auto Stabs in Collective)
What is the purpose of the speed switch in the CAC?
Stops side slip in turns.
What are the Control Position Transducers (CPT) for?
They give stick position information which prevents error signals.
If you press the ASE button on the controller what lights would you expect to come on?
Pitch, Roll + Yaw Lanes 1 + 2.
If you Disengage pitch 1 how would you re-engage it?
ASE.
On the controller if you push the trim switch straight down, what does that do?
Centralizes the main rotor actuators.
Where is the CAC cut out switch?
Cyclic stick.
You have had pitch runaway (PARPS), what are the indications that its been activated by the system?
One of the lanes is disengaged on your AFCS controller.
A split in demand and position.
AFCS caution.
With regard to the parallel actuators, what happens when the pilot puts the trim switch to on?
The clutch engages and locks the stick in that position.
The pilot is flying north, he takes his feet off the pedals, the wind starts to pick up from one side, the TRA will operate until the end of its authority, what happens next?
The parallel actuators will activate (Heading Hold)
The foot pedals will move.
Full 100% Authority.
Where is the AFCS computer located?
Rear avionics bay forward left shelf.
What switch is on the collective lever?
COL Release.
COL Release disengages what?
Bar Alt
Rad Alt
Rad Alt is engaged how would you disengage it?
Col Release
AFCS Cutout.
