FLIGHT CONTROLS PANEL Flashcards
What does ELAC stand for?
Elevator Aileron Computer
How many ELACs are installed?
2
What are the functions of the ELAC?
a. Normal elevator and stabilizer control
b. Normal aileron control
c. Normal pitch and roll
d. Alternate pitch
e. Direct pitch and roll
f. Abnormal attitude
g. Aileron droop
h. Acquisition of autopilot orders
Under Normal Law, what does ELAC 1 control?
Primary - Aileron control (roll)
Standby - Elevator / Trimmable Horizontal Stabilizer control (backs up ELAC 2)
Under Normal Law, what does ELAC 2 control?
Primary - Elevator / Stabilizer (pitch)
Standby - Aileron control (backs up ELAC 1)
What does SEC stand for?
Spoiler Elevator Computer
How many SECs are installed?
3
What functions are performed by the SECs?
a. Normal roll (by controlling the spoilers)
b. Speed brakes and ground spoilers (SEC 1 & 3 only)
c. Alternate pitch (SEC 1 & 2 only)
d. Direct pitch (SEC 1 & 2)
e. Direct roll
f. Abnormal attitude
Under Normal Law, what do the 3 SECs control?
Primary – Spoiler control (roll)
Standby – Elevator / Stabilizer control (SEC 1 & 2 back up the ELACs)
What is the sole purpose of SEC 3 in Normal Law?
Spoiler control
What is the definition of FAC?
Flight Augmentation Computer
How many FACs are installed?
2
What are the functions of the FACs?
a. Normal roll (turn coordination and yaw damping)
b. Rudder trim
c. Rudder travel limit
d. Alternate yaw
Under Normal Law, what do the FACs provide (YAWL) ?
a. Y - Yaw Control – Damping and turn coordination, rudder limiter, rudder trim)
b. A - Airspeed Protection Computation (Alpha Prot, high / low limits, maneuvering speed, PFD speed scale)
c. W - Windshear protection
d. L - Low Energy Warning Protection (“SPEED, SPEED, SPEED”)
Is full rudder deflection available during all flight regimes?
No. Rudder deflection is limited as a function of airspeed
