Flight Controls Flashcards
Which primary flight controls are hydraulic?
Elevators
Rudder
Roll Spoilers(MFS)
In a R and L hydraulic failure condition, how are the elevators and rudder operated?
Elevator - Manual Reversion(cables)through PCU’s
Rudder – Lower rudder PCU via the Aux Hydraulic system (pump)
Is the yaw damper active on the ground?
Yes, ON until 60 knots where it is disabled, then re-enabled with weight off wheels.
Is there a trim tab on the rudder?
No
the rudder surface is deflected directly
Ground spoilers are available when?
5
Switch is Arm, TL’s idle 2 of 3 : WOW Radar altimeter less than 7ft Wheel speed is above 16 knots
The stick pusher can be disabled 4 ways?
(3)
MSW
Stall Push off
CB1 #B-12
Maximum altitude with the YD off?
31000 ft
How do you turn off the roll spoilers?
By selecting the Roll Spoilers PBA to the OFF position.
As directed by the checklist for a Roll Control Jam on the Captains side.
When the roll disconnect is activated who controls the roll spoilers and who controls the ailerons?
Pilot controls the roll spoilers.
Co-pilot controls the ailerons.
The gust lock secures which controls?
Ailerons and Thrust Levers
PCU’s trap pressure for elevator and rudder dampening for approximately 12 hrs after hyd pressure is removed
What flight controls have trim tabs?
Aileron - left side only
What systems use primary trim?
(3)
Autopilot
Configuration trim
Mach trim
How does primary trim differ from secondary trim?
Primary trim is variable speed according to configuration/IAS
Secondary trim constant .2°/ sec.
What is the purpose of the rudder travel limiter?
Restricts rudder movement as speed increases to avoid empennage damage or rudder failure