Flight Controls Flashcards
All primary flight controls except for the ailerons are ____?
Fly-By-Wire. Electronically activated, hydraulically actuated
What are the secondary flight controls?
Trim Stabilizer, Flaps/Slats, Spoilers
How many hydraulic sources are there for the rudder and elevator?
2 actuators and 2 different hydraulic systems. Only one actuator is active at a time (alternating each day) to allow for even wear
Briefly explain the signal path for a pitch change from control column to elevator in normal mode. Direct mode?
Control Column -> ACE -> FCM -> ACE -> PCU
Control Column -> ACE -> PCU
What is the purpose of the ACE?
Connects the control column to the respective control surface electronically
What is the purpose of the FCM?
Augments pilot inputs with software limits and higher level functions
What is the purpose of the FCM?
Augments pilot inputs with software limits and higher level functions
Name a few important Higher Level Functions
Yaw damper, AoA limiting, AFCS (Autopilot)
What does Shaker Cutout do? Can we fly with the PLIs?
Pushed In Cuts the shaker, Pushed out shaker channel active and will activate when nearing stalling AOA or when pitched to the PLIs. Operations with the PLIs continuously displayed is prohibited
Flaps are ___ actuated through the SF-ACE.
Electrically. Two Power Drive Units (PDUs)
What do amber and dashed indications mean on EIcas
Amber means surface has failed, dashed means position is unknown
Do the Slats/Flaps have protection logic? If so, what is it?
Skew Protection (prevents asymmetrical extension) Strike Protection (prevents extension if force is too great to extend)
What is the difference between Flaps 4 and Flaps 5?
The only difference is that there is gate and Flap 5 is used for landing
What flap settings are used for takeoff? Landing? Go around?
T/O: 1, 2, and 4
Landing: 5 and Full
Go Around: 2 if Flaps were at 5, 4 if flaps were at Full
Maximum flap speeds are…
230, 215, 200, 180, 165 respectively.
Speed brakes are ___ activated and ____ actuated.
Speed brakes are ___ activated and ____ actuated.
What is the difference between Ground Spoilers and Multifunction Spoilers?
Ground spoilers only activate on the ground MF Spoilers can be roll spoilers, speed brakes, and ground spoilers
Under what three scenarios will the speed brakes automatically retract in flight?
Airspeed slower than 180
flaps greater than 1,
thrust lever greater than 70 degrees TLA (for go around)
After landing, when will the GRD spoiler panels rise?
Spoilers must be in Normal MODE
Weight on Wheels
Wheel speed is above 45 knots or airspeed is above 60 knots
TLA is below 26 degrees
When will the GRD spoilers retract? How about in direct mode?
When wheel speed is below 45knots for 5 seconds
If TLA is >35 degrees
GRD spoilers are not available in direct mode
All pilot trim commands are limited to ___ seconds before the trim cuts out. What happens at 7 seconds if half the switch is activated?
3 seconds
will get aural trim caution for pitch trim The switch is disabled
Trim priority order?
Pedestal (Backup), Captain, FO, Autopilot
Which trim is not commanded by the autopilot?
Yaw trim
What does pressing SYS 1 CUTOUT and SYS 2 CUTOUTbuttons do?
Disables the HS-ACE Channel 1 & 2
