Flight Controls Flashcards
Where is the aileron trim tab?
On the left aileron.
How is aileron trim operated?
Electric
How is the PC-12/47 aileron trim different from the PC-12/45?
The PC-12/47 has an additional geared tab on the right aileron that acts together with the left tab.
How is stabilizer trim operated?
Electrically operated with a primary motor and an autopilot/standby motor.
How is rudder trim operated?
Electrically.
The flight control system uses? (3)
Bell cranks, Cables, and Push/Pull rods.
When does the aileron rudder interconnect engage?
When flaps are set beyond 0 degrees.
More flaps equal more deflection.
What types of flaps do we have?
Single piece Fowler flap attached to each wing.
What moves the flaps?
A single, electric, PDU (power drive unit) attached to two flexible drive shafts for each flap.
What are the available flap settings?
0, 15, 30, 40
What controls the PDU?
The PDU is controlled by the FCWU (flap control and warning unit).
FCWU will disengage the PDU and illuminate the CAWS FLAPS when it detects:
■ Asymmetry of 5°
■ Twist of 2°
■ Flexible shaft failure
Can the FCWU be reset after it disengages the PDU?
No
CAWS PUSHER illuminates and pusher enters safe mode if?
Asymmetry or Twist is detected.
When CAWS PUSHER illuminates and pusher enters safe the pusher will?
■ Pusher will activate approximately 5 knots sooner.
When the flap motor overheats or stalls what happens?
The CB will pop and can be reset after 5 minutes.
How many motors does the stabilizer trim utilize?
Two, a primary and an autopilot/standby .
Describe the flaps?
Single piece Fowler flaps driven by a single electric Power Drive Unit driving screw actuators at the middle and inboard stations through flexible drive shafts.
What type of condition with the flaps will cause the pusher to enter safe mode?
Asymmetry or Twist.
