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CL-65 Study Guide > Flight Controls > Flashcards

Flashcards in Flight Controls Deck (24):
0

Which yoke is connected to the right aileron? The left aileron?

First officers/ captains

1

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 that hydraulically actuates the control surface

2

Which yoke controls the right elevator? The left?

First officers/ captains

3

What is the purpose of the multi function spoilers?

To assist with roll control and serve as a spoiler in flight and upon landing

4

Are the multi function spoilers operable at any speed?

Yes

5

How are the MFSs controlled when used for roll assistance?

The F/Os yoke position sends an electrical signal to the left MFS panels which are hydraulically operated by the PCUs. The captains yoke sends an electric signal to the right MFS panels which are hydraulically operated by the PCUs

6

What is the flight deck indication of a jammed aileron cable?

Both yokes will be jammed

7

What happens after the roll disconnect handle is pulled?

The aileron cable and pulley systems are disconnected through torque tubes. 20 seconds later if the operable side hasn't been selected, the amber ROL SEL switchlight illuminates

8

How is the operable side selected for a roll disconnect?

By pushing the roll SEL switchlight on the I jammed side

9

What does pushing the roll select switchlight do?

Allows the pilot with the operable aileron to control the onside MFS panels

10

What is the flight deck indication of a PCU runaway?

Aircraft begins an uncommanded roll and the PLT switchlight on the side without the PCU runaway illuminates automatically because of the bungee breakout signal

11

What is occurring when the pilot trim the ailerons or the rudder?

The control surface is being repositioned. There are no trim tabs

12

What panels are part of the ground lift dumping system?

Inboard and outboard spoilers, all 4 MFS panels

13

How are the flight controls gust locked?

Hydraulic fluid is trapped in the PCUs during shutdown

14

His is the yaw damper engaged?

YD 1 and YD 2 engage push buttons on the center pedestal

15

How is the yaw damper disengaged?

Disc button on the center pedestal

16

What controls the yaw damper?

The flight control computer

17

Is it necessary to disconnect the yaw damper during landing?

No

18

How are the flaps operated?

Electrically

19

How many flap segments does the CRJ have?

4 total, 2 on each wing

20

Is there any asymmetrical protection within the flaps?

Yes, if the flap segments differ by more than 5 degrees then the brakes are applied and the flaps will remain at the current position

21

How is the STAB TRIM operated?

Electrically, a split switch on the yoke operates two motors and a jackscrew to change the horizontal stabilizer angle of incidence

22

What systems can operate the stab trim?

CAs trim switches, FOs trim switches, autopilot and Mach trim

23

What is the priority for stab trim control?

CA, FO, AUTOPILOT, MACH TRIM