AFCS Flashcards

1
Q

With the CWS engaged, an having carried out a roll manoeuvre, when the control wheel is released, the autopilot will ___

A

main the flight attitude obtained at that moment

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2
Q

With no mode engaged, the autopilot will ___

A

hold attitude and auto-trim

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3
Q

Guidance functions consist in ___ the movements of the __ in three dimensional space

A

monitoring, CG

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4
Q

The correction of the control surface deflection will be more significant when ___

A
  • Difference between reference and instant attitude is high.

- Rate of change of the difference between reference attitude and instant attitude is high

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5
Q

AFCS is ___

A

Automatic Flight Control System

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6
Q

The autopilot system can detect a path disturbance of _ degree and apply the necessary control in ___ of a second

A

0.01 0.16

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7
Q

AFCS aircraft stabilisation functions are ___

A
  • Pitch attitude hold

- Horizontal wing hold

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8
Q

A fail passive system means that ____

A

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.

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9
Q

A fail operational system means that ___

A

If one AP fails, the autoland manoeuvre may still be completed with the remaing autopilots

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10
Q

1 autopilot is a fail ___ system

A

passive

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11
Q

2 autopilots in for an autoland approach is a fail ___ system

A

passive

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12
Q

3 autopilots for an autoland approach is a fail ___ system

A

operational

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13
Q

The autopilot takes its pressure information from the ___

A

static source

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14
Q

In heading capture mode, the autopilot gives a bank input which is proportional to ___ but not exceeding ___

A
  • Deviation between the selected heading and current heading

- A selected/automatic value

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15
Q

When disengaging the autopilot, the function providing a smooth handover to the pilot is the ___

A

automatic pitch trim function

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16
Q

When engaging the autopilot, the function providing a smooth handover to the pilot is the ___

A

automatic synchronisation function

17
Q

The command elements of the autopilot include ___

A
  • AP controller/MCP/Mode Annunciator Panel
  • Computer
  • Heading Selector
  • Radio Nav Signals
18
Q

The sensing elements of the autopilot include ___

A
  • Attitude reference system/gyro
  • ADC/altitude sensor
  • Directional gyro
  • Rate gyro
19
Q

The output elements of the autopilot include ___

A
  • Aileron servo/actuator
  • Elevator servo/actuator
  • Rudder servo/actuator
  • Servo servo/actuator
20
Q

The computer receives inputs from ___

A
  • MCP
  • Heading selector
  • Radio nav signals
  • Attitude ref system
  • ADC
  • Directional gyro
  • Rate gyro