AOA System 1-49 Flashcards

1
Q

The AOA system provides angle of attack information on the gage and, when _______.

A

the gear is extended

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2
Q

Anti-ice protection is provided for the AOA system by a ______ in the vane.

A

heated element

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3
Q

As the aircraft angle of attack approaches the angle for stall (approximately _____ on the gage), the AOA computer activates the stick shaker (_____ units), providing
stall warning.

A

18 units; 15-16

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4
Q

How is the AOS gage marked?

A
  1. a red radial at 18 units, which indicates stall;
  2. a green arc from 10 units to 11 units, which indicates the normal approach speed (optimum angle of attack or “on-speed”) range;
  3. a white diamond at 8.8 units, which indicates the maximum
    endurance angle of attack,
  4. a white triangle at 4.9 units,
    which is the maximum range angle of attack
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5
Q

When does the AOA indexer, installed on the upper left side of the glareshield in each cockpit, illuminate?

A

When the landing gear are down and locked,

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6
Q

What does the AOA indexer display?

A

the difference between indicated angle of attack and reference angle of attack

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7
Q

For a normal approach with gear down, flaps at LDG and
the PCL set for a three degree approach, the optimum approach speed (amber donut) is approximately _______
at maximum landing weight.

A

100 KIAS

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8
Q

Maximum Endurance AOA

A

The white diamond at 8.8 units on the AOA gage

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9
Q

Maximum Range AOA

A

The white triangle at 4.9 units on the AOA gage

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10
Q

The stick shaker is activated at approximately _______

above stall speed (_____ units).

A

5 to 10 knots; 15-16

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