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30 Cards in this Set
- Front
- Back
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The lower limit of Clas B airspace is
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The surface
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What is generally the vertical limit of class D airspace
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2500 feet above airport elevation
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The upper vertical limit of class A airspace is
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FL600
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A prohibited area is identified by the letter __, dash and a number.
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P
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A warning area is established beyond ___ NM from the coast of the United States.
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3
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A military operations area consists of airspace of defined dimensions established for the purpose of
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separating certain military trainiing activities from IFR traffic.
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What airspace contains federal airways?
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Class E
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What airspace is generally established from the surface to 4000 feet above the airport elevation and has an operational control tower?
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Class C
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Airspace of defined dimensions, confined activities, and limitations imposed on nonusers is identified as ____ ___ airspace.
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Special Use
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Generally extends upward to 10,000 feet MSL
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Class B
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VFR aircraft need to receive a clearance from ATC to enter this airspace.
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Class B
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Requires all aircraft to be IFR
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Class A
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No transponder is required
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Class D
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VFR aircraft are separated only from IFR aircraft
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Class C; need to confirm this one
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The paper limit of class G airspace is
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the base of the overlying airspace
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Three factors for Lift Generation:
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Object
Motion Air |
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The lift also depends in a complex way on two other properties of the air: its ______ and its _______.
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viscosity and its compressibility.
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AOA
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The angle between the chord line and the flight direction. (AOA - Alpha -
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Dynamic Pressure =
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Shape or profile of the surface
Angle of attack Surface area Compressibility effects |
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Coefficient of Lift
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Shape or profile of the surface
Angle of attack Compressibility effects Viscosity effects |
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Angle of Attack directly affects
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CL
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As AOA increases, CL _________
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increases.
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Thrust increase with no decrease of AOA will result in
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increased speed and then a climb.
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Moment
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A turning force produced by an object. A Moment is a by-product of Lift. If the wing is not ‘controlled’, it will pivot through the air.
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Center of Pressure
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The average location of the pressure variation the center of pressure.
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aerodynamic center (ac)
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The location where the aerodynamic moment remains constant. Using the aerodynamic center as the location where the aerodynamic force is applied eliminates the problem of the movement of the center of pressure with angle of attack in aerodynamic analysis.
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The Aerodynamic Center is the point where
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all changes in Lift take place.
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If CG is ahead of AC, a disturbance will tend to _____ ____.
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correct itself
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If CG is behind AC, a disturbance will tend to ______.
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increase.
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Aircraft movement is around the __
Lift changes act through the ___. |
CG; AC
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