Flight Controls COPY Flashcards
What is the maximum pitch up in normal law for all configurations?
At what nose up pitch do the flight directors disappear?
30 NU clean to config 3 (25 low speed)
25 NU config full (20 low speed)
Flight directors disappear at 25 NU
What is the maximum pitch down in normal law for all configurations?
At what pitch down do the flight directors disappear?
15 ND in all config
Flight directors disappear at 13 ND
What protections do you have in Normal law?
Pitch protection Roll protection High speed protection Load factor protection AoA protection
What protections do you have in Alternate Law?
Only load factor protection.
Max RoT is 30 degrees per second
Alternate Law with protections you also have high and low speed stabilities.
What protections do you have in Direct Law?
None
Max RoT is 30 degrees per second
What protections do you have in Mechanical Law?
None
How are pitch and roll controlled in Normal Law?
Pitch = load factor
Roll = rate of roll
How are pitch and roll controlled in Alternate Law?
Pitch = load factor
Roll = direct input
How are pitch and roll controlled in Direct Law?
Pitch = direct input
Roll = direct input
How are pitch and roll controlled in Mechanical Law?
Pitch = direct input, controlled with stabiliser only
Roll = direct into, controlled by rudder only
What defines Abnormal Law? (pitch up and down, and bank)
Greater than 50 NU
Greater than 30 ND
Greater than 125 AoB
How is roll protected in Normal Law?
What is the max RoT?
33 AoB max neutral stick, anything past this must be held
Max AoB = 67
AP/FD disconnect at 45
Max RoT = 15 degrees per second
What is Vmo/Mmo?
Will the aircraft allow you to go beyond these speeds?
At what increment past Vmo/Mmo will the AP disconnect?
Vmo/Mmo = 350kts/.82M
No, the aircraft won’t allow you to go beyond Vmo/Mmo in Normal Law. Gives pitch up authority you can’t override. In other laws yes you can.
AP disconnects at Vmo + 6 and Mmo + 0.1
What are the Load Factor limits in all applicable laws?
(normal, alternate and abnormal)
+2.5g to -1g Clean
+2g. to 0g Any other config
What is the difference in Stall protection between Normal Law and Alternate Law (with protections)?
Normal law you have V alpha protection and V alpha max, as well as Alpha floor.
In Alternate Law you only have Vls and Vsw, as well as a pitch down command you CAN override