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23 Cards in this Set
- Front
- Back
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What does ELAC stand for?
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Elevator Aileron Computer
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How many ELACs are installed?
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2
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What are the functions of the ELAC?
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- Normal elevator and stabilizer control
- Normal aileron control -Normal pitch and roll - Alternate pitch - Direct pitch and roll - Abnormal attitude - Aileron droop - Acquisition of autopilot orders |
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Under Normal Law, what does ELAC 1 control?
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- Primary - Aileron control (roll)
- Standby - Elevator/Trimmable Horizontal Stabilizer (THS) control (backs up ELAC 2) - Provides 5 degree aileron droop |
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Under Normal Law, what does ELAC 2 control?
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- Primary - Elevator/Stabilizer (Pitch)
- Standby - Aileron control (backs up ELAC 1) |
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What does SEC stand for? |
Spoiler Elevator Computer |
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How man SECs are installed?
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3
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What functions are performed by the SECs?
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- Normal roll (by controlling the 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 |
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Under Normal Law, what do the 3 SECs control?
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- Primary - Spoiler control (roll)
- Standby - Elevator/Stabilzer control (SEC 1 & SEC 2 back up the ELACs) |
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What is the sole purpose of SEC 3 in normal law?
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Spoiler Control (Spoiler 1 & 2 only)
One flight spoiler and one ground spoiler per wing |
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What backs up ELAC 2?
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ELAC 1 --> SEC 2 --> SEC 1
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What does FAC stand for?
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Flight Augmentation Computer
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How many FACs are installed?
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2
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What are the functions of the FACs?
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- Normal roll (Turn coordination & Yaw)
- Rudder trim - Rudder travel limit - Alternate yaw |
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Under Normal Law, what do the FACs provide?
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- Yaw Control (Damping & Turn coordination, rudder limiter, rudder trim)
- Airspeed protection computation (Alpha Prot, High/low limits, maneuvering speed, PFD speed scale) - Windshear protection - Low Energy Warning Protection ("SPEED, SPEED, SPEED") |
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Is full rudder deflection available during all flight regimes?
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No. Rudder deflection is limited as a function of airspeed
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What is the computer and priority for Ailerons?
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ELAC 1 --> ELAC 2
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What is the computer and priority for the Elevator and Trimmable Horizontal Stabilizer (THS)?
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ELAC 2 --> ELAC 1 --> SEC 2 --> SEC 1
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How are the flight control surfaces controlled and actuated?
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- Electrically Controlled
- Hydraulically Actuated |
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When is automatic pitch trim available?
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In flight under Normal Law with bank angle less than 33 degrees with or without the autopilot engaged
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If the active elevator actuator fails, what occurs?
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Control is transferred to the other actuator.
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How is roll control normally achieved?
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1 Aileron and 4 spoilers on each wing
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If both FACs fail, is maximum rudder deflection available?
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Yes, after slat extension.
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