Protections and Stabilities 3 Flashcards
Where is Alpha Floor activated on this picture? What law is this?
In between the middle and bottom arrow, between ValphaProt and ValphaMax
Normal Law
Where would speed settle with full aft sidestick deflection?
On the bottom arrow, ValphaMax
What is the minimum speed with neutral sidestick deflection?
On the middle arrow, ValphaProt
In normal law high AOA protection, what does sidestick command?
AOA demand
(Instead of load factor demand)
What protections are available in normal law?
Load factor
Pitch attitude
High AOA
High speed
Bank angle
When are load factor protections triggered in normal law?
+2.5G to -1G with slats retracted
+2G to 0G with slats extended
When are pitch attitude protections triggered in normal law?
+30 nose up
-15 nose down
What is the main difference between a protection and a stability?
Protections cannot be overridden, whereas stabilities can
When high speed protection is activated, what happens to pitch trim?
It is frozen
When high speed protection is activated, what happens to the bank angle limit?
Reduced from 67 degrees to 45 degrees
What is positive spiral static stability? What angle of bank in normal law?
When sidestick is reduced at high bank, this is the bank angle the aircraft will return to. In normal law, it is 33 degrees
What happens to positive spiral static stability when high speed protection is active?
It is reduced to zero, so when the sidestick is reduced, the angle of bank will gradually return to zero.
(In normal conditions, it would return to 33 degrees)
In normal law, what happens if you keep the sidestick full forward and allow speed to increase?
at Vmo+16/Mmo+0.04 nose down authority slowly reduces to zero
An overspeed ECAM will trigger at Vmo+4/Mmo+0.006
When is low energy SPEED SPEED SPEED warning available?
Config 2, 3 or full
Between 100ft and 2000ft
It happens immediately before alpha floor
When is low energy SPEED SPEED SPEED warning inhibited?
TOGA thrust
Alpha floor or GPWS triggered
Alternate or direct law
Both RA failed
What is represented by the top arrow? What law is this?
Vls
Alternate or direct law
What is represented by the bottom arrow? What law is this?
Vsw
Alternate or direct law
Where on this picture would Alpha Floor activate?
It wouldn’t, because it is unavailable in alternate and direct law
