Flaps / Slats Flashcards
How many flaps and slats surfaces ?
5 slats surfaces per wing
2 flaps surfaces per wing
How many positions on the flaps/slats lever ?
5 positions (0 - 1 - 2 - 3 and FULL)
What is the SFCC and how many are there ?
There are 2 Slats Flaps Control Computers, which controls the operation of the SLATS and the other one for the FLAPS.
Each SFCC has 2 channels, one for the slats and the other one for the flaps.
Which HYD sytems power the SLATS Power Control Unit ?
Which HYD sytems power the FLAPS Power Control Unit ?
What is the purpose of the Pressure Off Brake ?
What is the purpose of the Asymetric Position Pick-Off Unit ?
What is the purpose of the Wing Tip Brakes ?
Which HYD sytems power the WTB slats ?
Which HYD sytems power the WTB left flaps ?
Which HYD sytems power the WTB right flaps ?
What happens if FLAPS WTB is ON ?
Pilot can still operate the slats
What happens if SLATS WTB is ON ?
Pilot can still operate the flaps
What happens in case of a SFCC failure ?
Both slats and flaps operate at half speed
What happens if one HYD system is inoperative ?
The corresponding surfaces (slats or flaps) operate at half speed
At which speed do the flaps automatically retract from CONF 1+F to 0 ?
210 kt (before reaching VFE)
At which speed do the flaps automatically extend from CONF 1 to CONF 1+F ?
100 kt
What happens during a Go-Around when the crew select CONF 1 lever when speed is below 210 kt ?
When selecting CONF 1 from CONF 2 when speed is below 210 kt, pilot get CONF 1+F
What is the purpose of the ALPHA/SPEED lock funtion (slats)
It inhibits the slats retraction at high AoA and low speed.
When does the ALPHA/SPEED lock function activate ?
If the AoA is above 8.5° or speed below 148 kt
When does the ALPHA/SPEED lock function reset ?
If the AoA is less than 7.6° or speed above 154 kt
What are the corresponding slats/flaps position in ° during CONF 1 ?
Slats : 18°
Flaps : 0°
What are the corresponding slats/flaps position in ° during CONF 1+F ?
Slats : 18°
Flaps : 10°
What are the corresponding slats/flaps position in ° during CONF 2 ?
Slats : 22°
Flaps : 15°
What are the corresponding slats/flaps position in ° during CONF 3 ?
Slats : 22°
Flaps : 20°
What are the corresponding slats/flaps position in ° during CONF FULL ?
Slats : 27°
Flaps : 35°