Term
| The four forces acting on an airplane in flight are |
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Definition
lift, weight, thrust, and drag
AFH |
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Term
| When are the four forces that act on an airplane in equilibrium? |
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Definition
During unaccelerated flight.
AFH |
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Term
(Refer to figure 1)
The acute angle A is the angle of |
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Definition
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Term
| The term "angle of attack" is defined as the angle |
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Definition
between the wing chord line and the relative wind.
PHB |
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Term
| What is the relationship if lift, drag, thrust, and weight when the airplane is in straight-and-level flight? |
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Definition
Lift equals weight and thrust equals drag.
AFH |
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Term
| One of the main functions of flaps during approach and landing is to |
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Definition
increase the angle of descent without increasing the airspeed.
AFH |
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Term
| What is one purpose of wing flaps? |
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Definition
To enable the pilot to make steeper approaches to a landing without increasing the airspeed.
AFH |
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Term
| The angle of attack at which an airplane wing stalls will |
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Definition
remain the same regardless of gross weight.
FTP |
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Term
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Definition
The result of the interference of the surface of the Earth with the airflow patterns about an airplane.
AFH |
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Term
| Floating caused by the phenomenon of ground effect will be most realized during an approach to land when at |
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Definition
less than the length of the wingspan above the surface.
AFH |
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Term
| What must a pilot be aware of as a result of ground effect? |
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Definition
Induced drag decreases; therefore, any excess speed at the point of flare may cause considerable floating.
AFH |
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Term
| Ground effect is most likely to result in which problem? |
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Definition
Becoming airborne before reaching recommended takeoff speed.
AFH |
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Term
| Which statement relates to Bernoulli's principle? |
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Definition
| Air traveling faster over the cured upper surface of an airfoil causes lower pressure on the top surface. |
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Term
| The angle between the chord line of an airfoil and the relative wind is known as the angle of |
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Definition
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Term
| Changes in the center of pressure of a wing affect the aircraft's |
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Definition
aerodynamic balance and controllability
PHB |
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Term
| An airplane said to be inherently stable will |
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Definition
require less effort to control.
PHB |
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Term
| What determines the longitudinal stability of an airplane? |
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Definition
The location of the CG with respect to the center of lift.
PHB |
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Term
| What causes an airplane (except a T-tail) to pitch nose down when power is reduced and controls are not adjusted? |
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Definition
The downwash on the elevators from the propeller slipstream is reduced and elevator effectiveness is reduced.
PHB |
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Term
| An airplane has been loaded in such a manner that the CG is located aft of the aft CG limit. One undesirable flight characteristic a pilot might experience with this airplane would be |
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Definition
difficulty in recovering from a stalled condition.
AFH |
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Term
| Loading an airplane to the most aft CG will cause the airplane to be |
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Definition
less stable at all speeds.
AFH |
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Term
| In what flight condition must an aircraft be placed in order to spin? |
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Definition
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Term
| During a spin to the left, which wing(s) is/are stalled? |
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Definition
Both wings are stalled.
AFH |
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Term
| In what flight condition is torque effect the greatest in a single-engine airplane? |
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Definition
low airspeed, high power, high angle of attack.
PHB |
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Term
| The left turning tendency of an airplane caused by P-factor is the result of the |
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Definition
propeller blade descending on the right, producing more thrust than the ascending blade on the left.
PHB |
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Term
| When does P-factor cause the airplane to yaw to the left? |
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Definition
When at high angles of attack.
PHB |
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Term
(Refer to figure 2)
If an airplane weighs 2,300 pounds, what approximate weight would the airplane structure be required to support during a 60 blanked turn while maintaining altitude? |
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Definition
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Term
(Refer to figure 2)
If an airplane weighs 3,300 pounds, what approximate weight would the airplane structure be required to support during a 30 banked turn while maintaining altitude? |
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Definition
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Term
(Refer to figure 2)
If an airplane weighs 4,500 pounds, what approximate weight would the airplane structure be required to support during a 45 banked turn while maintaining altitude? |
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Definition
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Term
| The amount of excess load that can be imposed on the wing of an airplane depends upon the |
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Definition
speed of the airplane.
PHB |
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Term
| Which basic flight maneuver increases the load factor on an airplane as compared to straight-and-level flight? |
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Definition
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Term
| What force makes an airplane turn? |
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Definition
The horizontal component of lift.
PHB |
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Term
| During an approach to a stall, an increased load factor will cause the airplane to |
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Definition
stall at a higher airspeed.
PHB |
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Term
| Select the four flight fundamentals involved in maneuvering an aircraft. |
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Definition
Straight-and-level flight, turns, climbs, and descents.
AFH |
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