AFCS Flashcards
With the CWS engaged, an having carried out a roll manoeuvre, when the control wheel is released, the autopilot will ___
main the flight attitude obtained at that moment
With no mode engaged, the autopilot will ___
hold attitude and auto-trim
Guidance functions consist in ___ the movements of the __ in three dimensional space
monitoring, CG
The correction of the control surface deflection will be more significant when ___
- Difference between reference and instant attitude is high.
- Rate of change of the difference between reference attitude and instant attitude is high
AFCS is ___
Automatic Flight Control System
The autopilot system can detect a path disturbance of _ degree and apply the necessary control in ___ of a second
0.01 0.16
AFCS aircraft stabilisation functions are ___
- Pitch attitude hold
- Horizontal wing hold
A fail passive system means that ____
If the AP gails at any given time, the outcome will be a disconnection of the AP, but the pilot will receive the aircraft for manual control in a trimmed condition.
A fail operational system means that ___
If one AP fails, the autoland manoeuvre may still be completed with the remaing autopilots
1 autopilot is a fail ___ system
passive
2 autopilots in for an autoland approach is a fail ___ system
passive
3 autopilots for an autoland approach is a fail ___ system
operational
The autopilot takes its pressure information from the ___
static source
In heading capture mode, the autopilot gives a bank input which is proportional to ___ but not exceeding ___
- Deviation between the selected heading and current heading
- A selected/automatic value
When disengaging the autopilot, the function providing a smooth handover to the pilot is the ___
automatic pitch trim function
When engaging the autopilot, the function providing a smooth handover to the pilot is the ___
automatic synchronisation function
The command elements of the autopilot include ___
- AP controller/MCP/Mode Annunciator Panel
- Computer
- Heading Selector
- Radio Nav Signals
The sensing elements of the autopilot include ___
- Attitude reference system/gyro
- ADC/altitude sensor
- Directional gyro
- Rate gyro
The output elements of the autopilot include ___
- Aileron servo/actuator
- Elevator servo/actuator
- Rudder servo/actuator
- Servo servo/actuator
The computer receives inputs from ___
- MCP
- Heading selector
- Radio nav signals
- Attitude ref system
- ADC
- Directional gyro
- Rate gyro
