Flight Controls

Question 1

Primary flight controls?

Answer 1

• Ailerons
• Multifunction spoilers
• Elevator
• Rudder

Question 2

Secondary flight controls?

Answer 2

• Horizontal stabilizer
• Multifunction spoilers
• Slats/Flaps
• Ground spoilers

Question 3

Flight controls moved by?

Answer 3

• Fly-by-wire (FBW)

- Conventional cables (ailerons only)

Question 4

PCU (power control unit)

Answer 4

• A hydraulic actuator (replaces conventional control cable)

Question 5

ACE (actuator control electronic)

Answer 5

• The electronic unit controlling the PCU

Question 6

FCM (flight control module)

Answer 6

A computer inputting higher else functions

Question 7

Multifunction spoilers

Answer 7

• 5 panels per wing
• 3 outer panels are multi-function spoilers (MFS)
  
  • Roll assist
  • Speed brakes
  • Ground spoilers only
• 2 inner panels
• Ground spoilers only

Question 8

Roll Assist

Answer 8

• 3 outer panels
• Normal mode - scheduled as a function of airspeed and flaps settings
• Direct mode - fixed gain applied independent of airspeed and flaps

Question 9

Speed brakes

Answer 9

• 3 outer panels
• When handle is in the open position speed brakes will auto close when
  
  • slat/flap selection is 2 or greater
  • Airspeed < 180 kts
  • TLA (thrust lever angle) > 70
• Speed brakes will not work in direct mode

Question 10

Slats

Answer 10

• 8 leaving edge slats (4 per wing)
• 2 positions
• Electrically controlled
• Electrically activated

Question 11

Flaps

Answer 11

• 4 double-slotted/fowler type flaps (2 per wing)
• 7 Positions
• Electrically controlled
• Electrically activated