Flap Lever is part of pedestal
Description : Flap lever #
FLAP LEVER – Commands flaps and slats for simultaneous operation to selected position. Lever must be pulled out of detent prior to positioning. Detents are provided at positions 1 and 3 to avoid excessive flap/slat travel by a single action.
When the FLAPS lever is in any position other than 0 in flight, idle RPM is increased (approach idle) and continuous ignition activated.
The five slat and two flap panels on each wing are electrically controlled and hydraulically actuated via inputs from the flap lever. Signals from the FLAPS lever position are transmitted to two slat flap control computers (SFCCs). The slats are powered by both the green and blue hydraulic systems.
The flaps are powered by both the green and yellow hydraulic systems. If one hydraulic system fails, the associated surfaces extend and retract at half speed. If one SFCC fails, all of the flaps and slats operate at half speed.
Flap Protections #
TAKEOFF WITH FLAPS 1 – When flaps 1 is selected for takeoff (1 + F), the trailing edge flaps automatically retract to configuration 0 at 210 KIAS.
TAKEOFF OR GO-AROUND WITH FLAPS 2 OR 3 – When flaps 1 is selected, the 1 + F configuration is obtained if airspeed is less than 210 KIAS. The trailing edge flaps automatically retract to configuration 0 at 210 KIAS.
HIGH AOA – An alpha lock function prevents initiation of slat retraction from position 1 to 0 at a high angle of attack or low airspeed. The inhibition is removed automatically when the angle of attack is reduced or airspeed is increased.
WING TIP BRAKES – Four hydraulically operated wing tip brakes are installed to lock the flaps or slats in case of asymmetry, overspeed, symmetrical runaway, or uncommanded movement. The brakes cannot be reset in flight.
FLAPS SELECTION IN FLIGHT – When the flaps lever is moved from configuration 0 to 1 in flight, only the slats are extended.
FLAP DIFFENTIAL SAME WING – A flap disconnect detection system is installed which stops flap movement if excessive differential movement is detected between the inner and outer flaps on the same wing.
Airbus Flap Limits #
| Position | Slats° | Flaps° | Max Speed |
| 1 | 18 | 0 | 230 |
| 1+F | 18 | 10 | 215 |
| 2 | 22 | 15 | 200 |
| 3 | 22 | 20 | 185 |
| 4 | 27 | 40 | 177 |
