Protections and Stabilities 2 Flashcards
In alternate law, and if available, at what speed is low speed stability active?
5-10kt above VSW
What are the pitch attitude limitations in normal law?
Nose up 30 degrees (CONF 0-3) and 25 degrees CONF FULL. Progressively reduced by 5 degrees at low speeds.
Nose down 15 degrees in all cases
In direct law, what config is needed for landing and what speed adjustment if any?
CONF 3 and VREF + 10kt for landing unless otherwise specified
When moving flap lever from 0 to 1, what causes aircraft to go to config 1+F?
Speed less than or equal to 100kts
What is an easy way to identify if you are in alternate law?
Amber crosses
In high speed, when is nose down authority zero?
VMO +16
MMO +0.04
At what angle of bank do the FDs reappear after overbanking?
40 degrees
If ECAM states F/CTL ALTN LAW (PROT LOST), are protections lost?
Load factor protection is retained. High and low speed stabilities may be retained, but ECAM doesnt tell us
In alternate law, is high speed stability available?
It might be, depending on the situation
When are overspeed protections active?
VMO +6
MMO +0.01
Max 40 degrees AOB
If sidestick released, bank angle returns to 0
In flight mode, what does the sidestick command?
In pitch, load factor demand, and in roll a roll rate demand
With stick neutral, what will speed decay until?
ValphaProt
In alternate law, what does the sidestick command?
In pitch it is normal - Load factor demand with auto pitch trim
In roll, it is a direct relationship. Maximum is 30 degrees per second clean or 25 degrees per second with flaps
Where on the speed tape is VSW?
Top of the barber pole
At what attitude do FDs disappear in normal law? When are they recovered?
25 degrees up, 13 degrees down.
Recovered at 22 degrees up and 10 degrees down
What is the high speed protection bank angle limit?
40 degrees
What is the maximum bank angle?
67 degrees
What is shown at the low speed end of the speed tape in alternate law?
The barbers pole and the amber hockey stick only
How many flight control laws are there?
- Normal law
- Alternate law
- Direct law
- Mechanical Backup
- Abnormal attitude
In alternate law, is alpha floor available?
No
What causes mechanical backup?
Loss of multiple flight control computers or flight control surfaces, or total but temporary electrical loss
In direct law, what does the sidestick command?
Pitch - direct
Roll - direct
Will you get the overspeed master warning and aurul warning in alternate law? If so, when?
Yes. VMO +4kt (MMO + 0.006)
If at ValphaMax and sidestick released, what will speed go to?
ValphaProt
What happens when sidestick released at bank angle greater than 33 degrees?
Bank angle returns to 33 degrees
What is the maximum speed in alternate law?
320kt/M0.77
What is alpha lock?
Inhibits slat retraction if low speed or high angle of attack
What does the top arrow represent? What law is this?
Top is VLS
Middle is ValphaProt
Bottom is ValphaMax
Normal Law
What does the middle arrow represent? What law is this?
Top is VLS
Middle is ValphaProt
Bottom is ValphaMax
Normal Law
What does the bottom arrow represent? What law is this?
Top is VLS
Middle is ValphaProt
Bottom is ValphaMax
Normal Law
