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Flight Controls and Rigging > Flight Controls > Flashcards

Flight Controls Flashcards

0
Q 
G
H
I 
J
K
L
A 
Golf
Hotel
India
Juliet
Kilo
Lima
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A
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C
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Alpha
Bravo
Charlie
Delta
Echo
Foxtrot
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M
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Mike
November
Oscar
Papa
Quebec
Romeo
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S
T
U
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Sierra
Tango
Uniform
Victor
Whiskey
X-Ray
Yankee
Zulu
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4
Q

What are the three primary flight controls of an A/C?

A

Ailerons, elevator and rudder

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5
Q

What is flutter?

A

When an out of balance condition causes control surfaces to oscillate in the airstream, often leading to catastrophic failure of the structure.

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6
Q

Primary flight control systems control the aircraft along three axes of rotation, what are they?

A

Lateral (pitch axis)- uses the elevators to pitch up and down.
Longitudinal (roll axis)- uses ailerons to bank the wing causing the airplane to turn.
Vertical (yaw axis)- uses the rudder to improve quality of turns

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7
Q

What are the four main types of flaps?

A

Plain, split, slotted and fowler

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8
Q

What prevents contact between a control cable and the aircraft structure to prevent wear on the cables and structures?

A

Fairleads

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9
Q

What are tensiometers?

A

Measuring device used to check the tension of aircraft control cables.

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10
Q

What provides the ability to change the direction of travel of the surface?

A

Push pull rods connected to cable-driven bell cranks to control surfaces

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11
Q

What is a turnbuckle?

A

A type of fastener that enables you to adjust cable tensions

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12
Q

What is the fixed horizontal tail surface?

A

Horizontal stabilizer

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13
Q

What is a movable horizontal tail surface called?

A

Elevator

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14
Q

When the control wheel of the A/C is pulled back, what does the trailing edge of the elevator do?

A

Elevator moves upward

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15
Q

If a pilot pushes the control yoke forward, the trailing edge of the stabilator will move?

A

Downward

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16
Q

To bank an airplane to the right, the aileron on the right wing moves?

A

Upward

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17
Q

What do many airplanes use to compensate for aileron drag?

A

Rudder-aileron interconnect springs

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18
Q

Depressing the right rudder pedal will move the trailing edge of the rudder to the?

A

Right

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19
Q

What is a trim tab?

A

A secondary control surface used to correct out of trim conditions

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20
Q

What direction does a balance tab move?

A

Opposite direction of the control surface it is attached to

21
Q

Which direction does the anti-servo tab move?

A

Same direction as the control surface it is attached to

22
Q

A servo tab moves in the direction as the control surface to which it is attached.

A

Opposite

23
Q

Moving the leading edge of an adjustable stabilizer up, trims the airplane nose?

A

Down

24
Q

What type of flaps are used to prevent airflow from breaking away from the upper surface when the flaps are fully extended?

A

Slotted

25
Q

What is a fowler flap?

A

A flap that rides out of the trailing edge of the wing on the tracks and increases the wing area as well as it’s camber

26
Q

A fixed ducts air over the top of the wing to keep the aileron effective and provides lateral control during stall.

A

Slot

27
Q

What do hydraulically boosted control systems use to prevent control surface buffeting from being fed back to the pilot?

A

Irreversible inputs

28
Q

Strand number designation for each type of cable:
Flexible
Extra-flexible
Non-flexible

A

77
719
17 or 119

29
Q

A/C cables should be carefully inspected for what two defects?

A

Corrosion and wear

30
Q

During a proof load-test what breaking strength should a cable be subject to?

A

60% of it’s breaking strength for three minutes

31
Q

True or false, Fairleads may be used to change the direction of a cable.

A

False

32
Q

How many threads can be exposed at either end of the barrel for a turnbuckle to reach its full strength?

A

Three threads

33
Q

When safety-wiring a turnbuckle, how many full wraps of wire should be around the shank before cutting?

A

Four full wraps

34
Q

Using the cyclic pitch control mounted between the pilots legs, the helicopter tilts which direction?

A

In the direction the cyclic stick moves

35
Q

The collective pitch control causes the helicopter to move in which direction?

A

Vertically

36
Q

The control that changes the pitch on all rotor blades at the same time is called?

A

Collective pitch control

37
Q

Boosted controls on a helicopter cannot feed vibrations back through the controls if?

A

Irreversible control system is used

38
Q

The primary function of an autopilot is to relieve the pilots need to?

A

Manually control the A/C

39
Q

A single axis autopilot only uses?

A

Ailerons

40
Q

A two axis autopilot normally controls?

A

Ailerons and elevators

41
Q

What is FMS?

A

Flight Management System

42
Q

What do sensors detect?

A

Change in altitude

43
Q

This component processes the signals from the sensors and sends signals to servos to correct altitude

A

Amplifier

44
Q

Servos receive signals to?

A

Supply physical force to move flight control surface

45
Q

What are the most universal of lift modifying devices?

A

Flaps

46
Q

Plain flaps can increase in increments of?

A

10, 25 and 40 degrees

47
Q

Slots

Slats

A

Fixed

Adjustable

48
Q

Spoilers move in which direction?

A

Only up

49
Q

Nicropress

A

Centre compression made first, compression nearest thimble, and finally the compression at the end of the sleeve

Flight Controls and Rigging (1 decks)

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