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Cards In This Set
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What are the four forces that act on an aircrft in flight?
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Lift, Gravity, Thrust and Drag
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Which one of the following does not affect density altitude?
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Humidity does not affect density altitude
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The maneuver in which a RW A/C is maintained in nearly motionless flight over a ground reference point at a constant altitude and heading is known as
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Hovering
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The flight envelope of an aircraft is
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The region of altitude and airspeed in which it can be operated
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An airfoil's efficiency, either a wing or a rotor blade, is ____at high altitudes by the ____ air density
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Decreased, lesser
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The degree of movement of an aircraft around its lateral axis is known as?
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Yaw
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The primary purpose of the tail rotor system is to
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Balance or counteract the torque effect of the main rotor
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Takeoff from a slop in a helicopter with skid type landing gear is normally done by
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Brining the aircraft to a level attitude before completely leaving the ground
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"True Altitude," is defined as
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The vertical distance of the a/c above mean sea level
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A helicopter's cyclic control is a mechanical linkage used to change the pitch of the main rotor blades
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At a selected point in its circular pathway
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When the rotor blades of a helicopter are spinning fast enough in a clockwise direction to generate lift, a phenomenon known as__ causes the body of the helicopter to have a tendency to turn in a counterclockwise direction
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Torque
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"Absolute Altitude," is defined as
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The vertical distance of the A/C above the terrain or ground level
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The differential in lift between that of the advancing rotor blade and that of the retreating rotor blade is called
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Dissymmetry of lift
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Foor pedals in the helicopter cockpit give the pilot the ability to
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Control the torque effect
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"Density Altitude," is defined as
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The pressure altitude reading corrected for variations from standard temperature
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