Automatic Flight Flashcards

1
Q

FMA Auto-throttle mode colors

A

Green - Active
White - Armed
Amber LIM - indicate that vertical speed and
target speed are incompatible with thrust rating available

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2
Q

Autopilot FMA Colors

A

Green - Active

Red - Failed

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3
Q

FGCS Lateral Modes

A
– ROLL
– HDG
– LNAV
– LOC
– BC
– TRACK
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4
Q

FGCS Lateral and Vertical FMA mode colors

A

Green - manual
Magenta - FMS
White - active

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5
Q

FGCS Vertical Modes

A
– ALT
– ASEL
– FLCH
– FPA
– GA
– GS
– OVSP
– TO
– GP
– PTH
– VS
– WSHR
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6
Q

When do F/Ds automatically turn on?

A
  • TO/GA actuation
  • manual selection of a vertical or lateral mode
  • AP engagement
  • Windshear Detection
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7
Q

How many channels and servos associate with the autopilot

A
  • single autopilot
  • dual channels (alternate in case of failure or after each landing)
  • one servo for pitch control
  • one servo for roll control
  • one or two servos for rudder control
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8
Q

Non-normal disengagement of the autopilot

A

– AP button is pressed on the guidance panel;
– Either manual pitch trim switch is actuated;
– Either stick shaker is activated.
– Windshear escape guidance is activated

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9
Q

Abnormal disengagement of Autopilot

A

– Reversion of the fly-by-wire system to direct mode.
– Either the aileron or elevator control system is disconnected.
– A pilot input contrary to the autopilot is made on the controls with a
long time light force or a short time stronger force.
– Internal monitor failure.

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10
Q

What does FGCS command in Roll mode

A

– Bank angle at 6° or below: AP levels the wings.
– Bank angle above 6° and below 35°: AP holds present bank angle.
– Bank angle at 35° or above: AP maintains bank angle at 35º

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11
Q

When is LNAV engaged?

A
  • LNAV armed and passing through 200’

- NAV selected above 200’

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12
Q

When is TRACK engaged?

A
  • On takeoff above 100 knts and bank angle less than 3º for more than 10 sec
  • During Go-Around when TOGA pressed
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13
Q

Basic lateral and vertical modes

A

Lateral - Roll

Vertical - FPA (except for T/O)

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14
Q

What determines TO pitch angle?

A
  • FMS actual airplane weight
  • Flap position
  • V2 speed
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15
Q

TO Pitch angle logic

A

– All engines operating: V2 + 10 kt.

*The maximum speed target is Vfe - 5 kt and minimum speed
target is Vshaker + 10 kt for all engines operating.

– One engine inoperative:
– Engine failure below V2: guides V2
– Engine failure between V2 and V2 + 10 kt: guides present speed.
– Engine failure above V2 + 10 kt: guides V2 + 10 kt
* For one engine inoperative the minimum speed target is Vshaker + 3 kt.

  • pitch is limited to a minimum of 8° and a maximum of
    18°
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16
Q

Overspeed Protection

A
  • With AP and AT engaged pitch and/or thrust will be adjusted to prevent overspeed
  • amber OVSP on FMA
17
Q

GA Login

A

Pitch - initial 8º (max 18º)

Speed Target:

  • All Engine: Vref +20 (limited to shaker +10; max Vfe -5)
  • OEI: Vac (limited to shaker +3)
18
Q

Windshear guidance activation

A

Below 1500:

  • Windshear cation or warning detected and TOGA pressed
  • Windshear warning detected and thrust levers set to TOGA position
  • Windshear warning detected and FD mode is TO or GA
19
Q

VNAV sub modes

A
  • VARM
  • VFLCH
  • VASEL
  • VALT
  • VGP
  • VPATH
20
Q

AT Lowspeed protection logic

A

Above 30,000’ (Flaps UP) - 2% above amber low speed awareness tape

20,000’ —> 30,000’ (Flaps UP) - linearly from 2% above LSA to 1.2Vs

Below 20,000’ (Flaps UP) - 1.2 Vs

Flaps 1 —> 5 (All altitudes) - 1.2 Vs

21
Q

AT automatic disengagement

A
– after airplane touchdown
– thrust levers beyond the TO/GA position
– reverse thrust operation during RTO
– difference in TLA greater than 8° 
– autothrottle failure.
22
Q

When do ATs take over during Takeoff run

A

With ATs armed above 50º TLA

23
Q

What happens when you press TCS button

A
  • pressing and holding the TCS will momentarily override the AP