Flight Controls Flashcards
The elevator utilize ________ and _______ tabs to aid in deflection.
Servo
Spring
Pitch control is provided by ____________ actuated elevators and an ___________ positioned horizontal stabilizer.
Mechanically
Electrically
The elevator spring tabs only work at ________ speeds.
Hight
The HSCU incorporates ____ independent and redundant control channels _________ and backup channel
2
the main
Pitch trip is normally commanded through switches on the control wheels, automatically through the ______________, or through backup switches located on the ___________
autopilot or speed brake switch
Center Console
The ailerons, rudder, spoilers and speed brakes are all _________. The ailerons and rudder also incorporate _____________ reversion in the event of a __________ failure.
hydraulically powered
Mechanical
Hydrauic
All trim systems incorporate a ____ second timer to avoid inadvertent command in case of system failure.
3
The autopilot elevator servo and stick pusher servo are located on the ______ side of the elevator disconnect device.
left
The artificial feel unit for the ailerons is located in the _______ half of the torque tube
right
The rudder power control unit (PCU) is a _____ hydraulic unite and is powered by _______ hydraulic systems
dual
both
The function of the pcu is to command the position of the ______ rudder.
Forward
above ______ knots, the #1 system is automatically switched _____ by the rudder electrical circuit based on the airspeed signals received from the _____
135
off
ADC
Both aileron and rudder systems can be shutoff manually via pushbuttons located on the __________ panel
overhead
An “____________” EICAS caution indicates that both hydraulic systems are powering the rudder above ______ knots.
overboost
135
The three conditions that must occur to activate Rudder Hardover Protection are:
______________
______________
______________
Rudder deflects above 5º
Force on rudder pedal opposite the deflection over 130lbs
Both engines running
The gust lock system blocks movement of the ________
elevator
The _______________ gust lock system acts directly on teh elevator panels utilizing locking pins to prevent movement of teh elevator on the ground.
electromechanical
The flaps are ______ operated, consisting of ____ flap panels installed in each wing. ______ ______ sensors provide protection against asymmetric conditions by insuring that all flap panels are extended at the same rate. The flaps will automatically fail if the asymmetric conditions exceeds ____ degrees
Electrically
2 (double slotted)
Flap Velocity
2
Maximum extension speed for flaps 9º is _______ knots; flaps 22º is ______ knots and flaps 45º is ______ knots
250
200
145
The flap selector lever incorporates 2 microswitches at _____ degrees and ______ degrees for activation signals to the landing gear warning system.
17
27
Ground spoilers employ _____ panels located on the top of each wing while speed rakes utilize only the ______ panels
2
outboard
For ground spoilers to open the following 3 conditions must be met:
__________
__________
__________
Aircraft on the ground
Main landing gear wheels above 25kts
Both engines thrust levers below 30º TLA, or N2 below 56.4% N2
For the speed brake to open, the following 3 conditions must be met:
___________
___________
___________
Thrust levers below 50º TLA
Flaps set less than 13º
The speed brake lever set to OPEN
Pitch trim indications are normally read on the _______, but can also be verified outside by the marks ahead of the _________ stabilizer.
EICAS
Horizontal