Flight Control Flashcards
Where can we control the Flight Control Computers?
Via the Overhead Panels
Difference between conventional aircraft controls and Fly by Wire?
Convention uses cable and pulleyes. Fly by Wire uses electrical wires, computers. Less weight. More protections.
What are the parts of the Flight Control System?
- Elevators
- Ailerons
- THS - Trimmable Horizontal Stabilizer
- Rudder
- Ground Spoilers
- Speed brakes
How many Flight Control computers are there and what are they? Any additional?
There are 7 main Flight Control computers.
- 2 ELAC
- 3 SEC
- 2 FAC
Additional are 2 FCDC’s
What do the FCDC do?
They take data from the ELAC and SEC and send it to the EIS (Electronic instrument System)
What does ELAC,SEC, FAC stand for?
- ELAC - Elevator and Aileron
- SEC - Spoiler and Elevator
- Flight Augmentation Computer
What do the FAC do?
- Control rudder, rudder trim, yaw damper inputs
- Flight envelope and speed function
- Low energy warning
- Windshear detection
Where do the data of FAC’s go?
Direct to the EIS
3 functions of Spoilers?
- Speed brakes uses the 3 center surfaces
- Roll uses the 4 outer surfaces
- Ground spoilers use all surfaces
What computers control the Slats and Flaps? How are they controlled and actuated?
Electrically controlled and hydraulically actuated by 2 SFCC. Slats and Flaps Control Computers
How many channels does each SFCC have?
- One for the Flaps and one for the Slats
What are the lift augmentation devices?
- 5 Slats on each leading edge
2. 2 Flaps on each trailing edge
Where do you see the indications for the Flaps and Slats position?
On the EWD and SD Flight Control page
What happens in the event of a WING TIP BRK ON on ECAM?
Flaps are locked into place
Are there any control surface with a mechanical back up?
The THS and Rudder
