Army Aviation Practice 2 Flashcards

1
Q

What is Nap-of-the-Earth (NOE) flight conducted for?

A

It is a military flight mode designed to minimize detection by enemy forces or systems.

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2
Q

The 3 axes around which flight movement occurs are:

A

Lateral, longitudinal, and vertical

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3
Q

The amount of an airfoil’s curvature is called:

A

It’s camber

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4
Q

Earth’s atmosphere is composed of ___% nitrogen, ___% oxygen, ___% other gases

A

78% nitrogen, 21% oxygen, and 1% other gases

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5
Q

A lighted heliport can be identified by:

A

A white, yellow, and green rotating beacon

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6
Q

The best way to perform a quick stop is to:

A

Lower the collective and pull back on the cyclic

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7
Q

The collection of factors that facilitates maximum helicopter performance is:

A

Low altitude, low temperature, and low humidity

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8
Q

The cyclic controls:

A

The direction of the tilt of the main rotor

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9
Q

Moving the cyclic forward and significantly raising the collective will cause the helicopter to:

A

Increase its forward speed and begin to climb

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10
Q

Conventional American helicopters have a main rotor that:

A

Turns in a counterclockwise direction

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11
Q

What is translational lift?

A

The additional lift gained when the helicopter leaves its downwash

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12
Q

On a helicopter, a governor is a device that:

A

Senses rotor and engine RPMs and makes adjustments to keep rotor RPMS constant

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13
Q

What is a correlator?

A

A mechanical connection between the collective lever and the engine throttle

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14
Q

The antitorque pedals, located on the cabin floor by the pilot’s feet, control the ___1)__ and therefore the __2)___ of the tail rotor blades or other antitorque system

A

1) Pitch, 2) thrust

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15
Q

What are the 3 types of main rotor systems?

A
  1. Rigid, 2. semi-rigid, 3. fully articulated
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16
Q

On a typical helicopter airspeed indicator a green arc indicates:

A

The aircraft’s normal operating speed range

17
Q

More power is required during _________than any other helicopter flight regime

A

Hovering

18
Q

The 3 major factors that affect helicopter performance are:

A
  1. Density altitude, 2. weight, 3. wind
19
Q

The 4 fundamentals of flight on which all maneuvers are based are:

A
  1. Straight and level flight, turns, 2. climbs, and 3. descents
20
Q

Hover height, rate of ascent, and rate of descent of a helicopter are controlled with:

A

The collective

21
Q

Helicopter position and direction of travel are controlled by the:

A

Cyclic

22
Q

The helicopter pilot can use the pedals to control:

A

Heading, direction of turn, and rate of turn at hover

23
Q
A