Flight Controls Flashcards
Which Flight Controls are NOT Fly by Wire?
Ailerons
How many Channels does a P-ACE have?
2 - Active/Standby
What is the maximum time manual pitch trim inputs are allowed?
3 Seconds
What are the Fly by Wire Components?
3 x P-ACEs (Primary)
2 x SF-ACEs (Slat/Flap)
1 x HS-ACE (Horizontal Stabiliser)
3 x S-ACE (Spoiler)
4 x FCMs (Flight Control Modules)
How many Channels does a SF-ACE have?
2 - Slats/Flaps
How many Channels does a SF-ACE have?
2 - Active/Standby, switching daily
What is the difference between NORMAL & Direct Mode?
FCM is removed from the the control loop and the control limits default to values set by hardware in the P-ACE when a channel failure is detected. High Level functions may not be available
How long do the Electric and Hydraulic PBITs take?
Electric - 3 minutes
Hydraulic - 1 minute
What is the Flight Control ODD-EVEN Day Engage Configuration?
Switches between the ODD & EVEN Channel, to reduce latency in the Flight Control System and to allow for even wear of the Flight Control System
How long does the Fly-by-wire Battery Last and what does it provide?
15 minutes - rudder and elevator actuators
How are the elevator surfaces actuated?
Hydraulically via the PCUs (Power Control Units)
What happens in the event of an Elevator Jam?
Respective elevator surface will remain fixed at the jammed position. Control can be achieved using the remaining elevator
Which Hydraulic Systems power the Elevator Actuators?
HYD SYS 1 - L OUTBOARD
HYD SYS 2 - L & R INBOARD
HYD SYS 3 - R OUTBOARD
What is TSA?
Tail Strike Avoidance System
Max Pitch Up with TSA Inoperative?
10° Pitch UP
What is the Stabiliser Trim priority Logic?
Backup
LH Pitch Trim Switch
RH Pitch rim Swithc
FCM AUTO Trim
In the event of an electrical failure, followed by RAT deployment what happens to the Trim function?
It will operate at a low rate
Which HS-ACE operates in the event of an electrical emergency?
HS-ACE 2 - At low rate
Which Hydraulic Systems power the Ailerons?
HYD SYS 2 - Inboard Ailerons
HYD SYS 3 - Outboard Ailerons
In the event of a RIGHT aileron Jam (FO) what happens?
Captain retains control of the LEFT aileron and Spoilers 5 WITH artificial feel
In the event of a LEFT aileron Jam (CAPT) what happens?
FO retains control of the RIGHT aileron and Spoilers 4 WITHOUT artificial feel
What happens in the event of a disconnection of 1 Aileron PCU?
Other PCU will operate normally but the force authority will be halved
Which Spoilers are Multifunction Spoilers?
3-5 on each side
What Hydraulic Systems power the rudder?
Hydraulic System 1 - UPPER
Hydraulic System 3 - LOWER
