A320 Lounge Protections 1 Flashcards
In normal law, what is maximum nose down angle?
Minus 15
In normal law, what is maximum nose up pitch angle?
Plus 30 nose up (reduced to 25 if low angle of attack protection regime entered).
Reduce both of these numbers by 5 if in CONF Full
In normal law, what is the maximum bank angle limit?
67 degrees
What is positive spiral static stability?
Auto trim will help us maintain level flight up to 33 degrees angle of bank. If sidestick released, bank angle will be fixed.
Beyond 33 degrees, if sidestick released, it will return to 33 degrees.
Over 33 degrees, THS fixed
When do flight directors turn off in pitch?
When over 13 degrees nose down and approx 25 nose up
When do flight directors turn off in bank? And when do they come back?
45 degrees, then return at 40
What is VMO?
350kts
What is MMO?
0.82
What is the green equals sign on the speed tape?
The speed at which high speed protections take place
What speed to high speed protections start?
VMO + 6
MMO + 0.01
What do high speed protections do?
Pitch up to reduce speed
What speed do you generate overspeed ECAM?
VMO + 4
MMO + 0.006
What speed do you lose all sidestick authority?
VMO + 16
What high speed does AP disconnect?
VMO + 15
What affect does positive spiral static stability have in high speed regime?
Returns to wings level. Bank is limited to 40 degrees
What is maximum angle of bank in high speed regime?
40 degrees
What is VLS?
Lowest selectable speed.
With autothrust in, aircraft with not decelerate below VLS.
What is VLS based on?
VS 1G
Stall speed at 1G. VLS is normally set on approach at 1.23 x VS1G (VREF)
What speed can aircraft decelerate to with autothrust in?
VLS
What speed can aircraft decelerate to without autothrust?
V alpha prot
What speed will aircraft settle on with autothrust out and neutral sidestick?
V alpha prot
What speed can you reach with full aft sidestick and autothrust off?
V alpha max
What does sidestick command below v alpha max?
Angle of attack, rather than load factor
What is alpha floor?
An autothrust mode (not a protection)
When speed reduces below a certain point, TOGA will be set automatically, regardless of thrust lever position
When does autopilot disengage in slow speed?
1 degree more of AoA than V alpha prot
How is V alpha prot represented on the speed tape?
Top of the orange and black
How is V alpha max represented on the speed tape?
Solid red band
How do you get out of TOGA lock?
Disengage autothrust
