Flight Controls Flashcards
What are the primary flight control system
Aileron
Spoilers ( as roll control)
Elevator
Rudder
Secondary flight control
Horizontal stabilizer
Slats and flaps
Spoilers (as brakes)
Ground spoilers
Which flight control is conventionally controlled
Ailerons are cable connected
But still has a hydromechanical actuator
What are PCU
Power control units
The actuators That move the control surfaces
What are the modes of operation in the flight controls
Normal (flight control module) FCM helps in proper inputs to the control
Direct. The FCM is bypass and pilot inputs are no longer dampened
What is PBIT
Is a power up built in test to make sure the control system work normally
High level function of the elevator
AOA limiter
Auto trim
Autopilot
Elevator thrust compensation
What type of actuator the does the horizontal stabilizer use
Electro- mechanical
What type of actuator the elevator uses
Hydraulic actuated
What is the priority of the trim commands
Backup trim command
Pilot trim
FO trim
FCM command
How many channels in the HS- ACE ( horizontal stabilizer actuator control electronic)
Two channels active/sttby
Alternating every powerup
Can the pilot deactivate the HS-ACE channels
Both channels by pressing the red Pitch/trim disco and holding it
Or by pushing guarded cut out button on the center console
What is the function of the multi function spoilers
Augment aileron roll control
Speed brake
Ground spoiler augmentation
How many multi function spoilers panel
6 spoilers 3 a side
When will the speed brakes automatically retract
When IAS 180 or less
Or advancing the throttle beyond 70 degree position
How many ground spilers
4 ground spoilers
High level functions of the rudder computer
Yaw dampening
Turn coordination
In normal condition how many PCU controls the rudder
1 the other in standby
If RAt is the only source of electricity can you extend the flaps
Only to position 3
How flaps / slats are powered
By electrical Power Drive Units PDU
How does the fly by wire works
Pilot inputs and FCM augmentation tell the appropriate ACE to activate the appropriate actuator
In electrical emergency and RAT is not Deploy how long do you have for the Fly by wire
10min on regular battery an 15 min on backup battery
What will cause the FCM to go into direct mode
Loss of airspeed data
What systems interact with the FCM to provide augmentation
ADSP for airspeed augmentation
IRS for AOA limiting
Proximity sensor for WOW for ground spoilers
BCM - for ground spoilers
FADEC- for thrust compensation
Auto pilot
