Flight Controls Flashcards
Aileron Trim
Normal: Left tab
STBY: Right tab
How are the flaps connected
Mechanically
In the event of jamming of the ailerons how can you regain control
Pull the disconnect
What is the purpose of the aileron roll spring
allows you to temporarily overpower a jammed aileron while you’re working to pull the disconnect
How do the aileron trim tabs works
geared meaning tab moves opposite of the aileron, helps alleviate required control inputs
What type of flaps
single slotted
how do the flaps work
hydraulically actuated, electrically controlled and interconnected
What is blowback
flap blowback prevents overspeed conditions by retracting to the previous setting
What is AFR
Auto flap retract, retracts to flaps 15 on landing to help get weight on the wheels, at 2x the normal rate. its signaled by the anti skid system at 25 kts wheel speed
what two things do the flap position sensor talk to
PECU: Power Elevator Control Unit
FCU: Flap Control Unit
How does the Rudder System Work
Servo operated, electrically controlled, hydraulically actuated
How does the rudder LVDT work in the rudder
LVDT: Linear Voltage Differential Transformer, Takes physical movement of the pedals and translates it into electrical signals
How many actuators run the elevator
4 main actuators, 2 each side.
2 emergency actuators, 1 each side
Emergency Elevator
two emergency actuators, bypasses the PECU and LVDT
