Study Guide Flight Controls

Question 1

What is he only primary flight control that is not FBW (Fly-By-Wire)?

Answer 1

Ailerons

Question 2

What is the difference between normal mode and direct mode?

Answer 2

There are no higher level functions available in direct mode.

Question 3

What are the higher level functions associated with pitch?

Answer 3

• Gain on airspeed
• Elevator thrust compensation
• AOA limiting

Question 4

What are the higher level functions associated with YAW?

Answer 4

• YAW damp
• Turn coordination
• Gain on airspeed

Question 5

What is the priority of the trim system?

Answer 5

• Backup
• Captain
• First Officer
• Autopilot

Question 6

How is roll controlled?

Answer 6

Ailerons and multi-function spoilers (outer 3 spoilers on each wing)

Question 7

How many multi function spoilers are on each wing? What are their functions?

Answer 7

• 5
• 3 outboard spoilers are used to assist in roll control and for ground spoilers?
• 2 inboard spoilers are only used for ground spoilers

Question 8

When will the speed breaks automatically close even if the lever shows deployed?

Answer 8

• Flap 2 or more
• Airspeed < 180kts
• TLA > 70 deg

Question 9

What is the flap/slat extension/retraction sequences?

Answer 9

• Slats extend first

- Flaps retract first

Question 10

Will loss of airspeed data cause the flight controls to go into ‘Direct’ mode?

Answer 10

Yes

Question 11

Can a FCM override pilot input?

Answer 11

No, the pilot has supreme control.

Question 12

What happens to artificial feel if flight controls are disconnected?

Answer 12

Artificial feel is felt at 1/2 the normal load

Question 13

How are the flight controls trimmed?

Answer 13

• Roll & Yaw Ailerons and Rudder surface repositioned to a new ‘neutral position’
• Pitch Horizontal Stabilizer

Question 14

Will the multi function spoilers function in ‘Direct’ mode?

Answer 14

Yes, for roll only and at a default fixed gain

Question 15

Will the speed brakes/ground spoilers function in ‘DIRECT’ mode?

Answer 15

NO

Question 16

What happens to the flight control system when the RAT is the only AC power source?

Answer 16

• Horizontal stab trim operates at 1/2 speed
• Slat/flap system operates at 1/2 speed
• Slat/flap position is limited to ‘3’ to allow adequate airspeed for the RAT