AFCS automatic flt ctrl system Flashcards Preview

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Flashcards in AFCS automatic flt ctrl system Deck (9)
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0
Q

The ADU has 4 lines of text. What are the meaning and color of each line?

A

1: advisory message in white
2: caution message in amber
3: armed modes in white letters
4: active modes in green

1
Q

What are the main components of the AFCS?

A

One computer
One control panel
One advisory panel (ADU)
Three servo actuators (one for each axis)

2
Q

What is the difference between high and low bank?

A

Hi: 27 deg
Lo: 15 deg

3
Q

The BANK PB only affects bank angle when in what mode?

A

HDG mode

4
Q

What is the function of the TCS button?

A

Temporarily allows you to control the plane when the autopilot is still engaged

5
Q

What are the ways the autopilot be disengaged manually?

A
  1. Button on control wheel
  2. Action on the pitch trim
  3. Autopilot PB on the AFCS control panel
  4. YD on the AFCS control panel
  5. Go around PB
  6. 66lb force on rudder pedals
  7. Pitch trim asymmetry
  8. AHRS disagreement
  9. Stick shaker
6
Q

Why would the autopilot disconnect it’s self?

A

One of the engagement conditions of AP or YD no longer met
Stall warning indicator threshold
Disagreement between two AHRS or two ADCs
Mismatch between the two trims

7
Q

What data is used for guidance computations?

A

The AFCS computer uses data from:

The coupled ADC and SGU

8
Q

What does an AUDIO SELECT FAULT mean?

A

Remote control audio unit (RCAU) processing board failure or power loss