Flashcards in Flight Controls Deck (26):
Which yoke is connected to the right aileron?
Which yoke is connected to the left aileron?
How are the ailerons, elevators and rudder actuated?
Yoke and pedals operate a system of cables and pulleys that connect to pull and push rods at the flight control which operate a hydraulic PCU which hydraulically actuated the control surface
Which yoke controls the right elevator?
Which yoke controls the left elevator?
What is the purpose of the multifunction Spoilers (MFS)?
To assist with roll control and serve as a spoiler in flight and on landing
Are the MFS operational at any speeds?
How are the MFS's controlled when used for roll assistance?
The FO's yoke position sends and electrical signal to the left MFS panels which are hydraulically operated by PCU's.
The CA's yoke position sends an electrical signal to the right MFS panels which are hydraulically operated by PCU's.
What is the flight deck indication of a jammed aileron cable?
Both yokes will be jammed
What happens after the ROLL DISC handle is pulled?
The aileron cable and pulley systems are disconnected through torque tubes
20 seconds later, if the operable side has not been selected, the amber ROL SEL SWITCHLIGHT illuminates
How is the operable side (roll) selected?
By pushing the ROL SEL/PLT ROL SWITCHLIGHT on the unjammed side
What does pushing the ROL SEL/PLT ROL SWITCHLIGHT accomplish?
Allows the pilot with the operable aileron to control the on-side MFS panels
What is flight deck indication of an aileron PCU runaway?
Aircraft begins an uncommand roll and PLT SEL SWITCHLIGHT on the side without the PCU runaway illuminates automatically because of the bungee break-out signal
What is occurring when the pilots trim the aileron or rudder?
The control surface is being repositioned
There are no trim tabs
What panels are part of the GND LIFT dumping system?
Inboard and outboard ground spoilers
All 4 MFS panels
How are the flight controls gust locked?
Hydraulic fluid is trapped after shutdown
How is the Yaw Damper engaged?
YD1 and YD2 engage SWITCHLIGHT on the center pedestals
How is the YD disengaged?
DISC button on the center pedstal
What controls the YD?
The flight control computer
Is it necessary to disconnect the YD on landing?
How are the flaps operated?
How many flap segments does then CRJ have?
4 total, 2 on each wing
Is there any asymmetrical protection within the flaps?
Yes, if the flap segments differ by >5 degrees
The brakes are applied and the flaps will remain at the current position
How is STAB TRIM operated?
Electrically, a split switch on the control yoke operates two motors and a jack screw changing the horizontal stabilizer angle of incidence
What systems can operate the STAB TRIM?
CA & FO trim switches
Autopilot and MACH trim