FLIGHT CONTROLS PANEL

  1. What does ELAC stand for
    elevator aileron computer
  2. How many ELACs are installed
    2
  3. What are the functions of the ELAC
    • normal elevator and stabilizer control
    • normal aileron control
    • alternate pitch
    • direct pitch and roll
    • abnormal attitude
    • aileron droop
    • acquisition of autopilot orders
  4. Under normal law, what does ELAC 1 control
    • primary - aileron control (roll)
    • standby - elevator/trimmable horizontal stabilizer (backs up ELAC 2)
  5. What does SEC stand for
    spoiler elevator computer
  6. How many SECs installed
    3
  7. What functions are performed by the SECs
    • normal roll (spoilers)
    • speed brakes and ground spoilers (SEC 1 & 3 only)
    • alternate pitch (SEC 1 & 2 only)
    • direct pitch (SEC 1 & 2)
    • direct roll
    • abnormal attitude
  8. Under normal law, what do the 3 SECs control
    • primary - spoiler control (roll)
    • standby - elevator / stabilizer control (SEC 1 & 2 backup the ELACs)
  9. What is the sole purpose of SEC 3 in normal law
    spoiler control (spoiler 1 & 2 only)
  10. What is the definition of FAC
    flight augmentation computer
  11. How many FACs are installed
    2
  12. What are the functions of the FACs
    • normal roll (turn coordination and yaw damping)
    • rudder trim
    • rudder travel limits
    • alternate law
  13. Under normal law, what do the FACs provide (YAWL)
    • Y - yaw control (damping and turn coordination, rudder limiter, rudder trim, beta target)
    • A - airspeed protection computation (alpha protection, high/low limits, maneuvering speed, PFD scale)
    • W - windshear protection (reactive and not predictive)
    • L - low energy warning protection ("SPEED, SPEED, SPEED")
  14. Is full rudder deflection available during all flight regimes
    no.  rudder deflection is limited as a function of airspeed
  15. How are the flight control surfaces controlled and actuated
    controlled electrically and actuated hydraulically
  16. When is automatic pitch trim available
    under normal law with bank angle less than 33° with or without autopilot engaged
  17. How is roll normally achieved
    1 aileron and 4 spoilers on each wing
  18. If both FACs fail, is maximum rudder deflection available
    yes, after slat extension
Author
dpbal67
ID
354191
Card Set
FLIGHT CONTROLS PANEL
Description
F9 study guide
Updated