The Airplane Flashcards
The complete tail section of an airplane is called the ____?
Empennage
The main members in the wing that run the length of the wing from wing root to wing tip and carry most of the load are called _______?
Spars
The _____ is the term used to describe the complete structure of an airplane, including the fuel tanks and line, but without engine(s) and instruments installed.
Airframe
Some wings are constructed with no external bracing at all. These are known as _____ wings.
Cantilever
As the angle of attack of an airfoil is increased up to the point of stall, the center of pressure will move _____.
Forward
______ drag is caused by those parts of an airplane that produce lift and therefore cannot be completely eliminated.
Parasite
Spoilers are devices fitted to the wing that increase ______ and decrease _____.
Drag, Lift
_______ should be used to gain the most altitude in a given amount of time.
Best rate of climb.
Movements of the aircraft around the vertical or normal axis is called _____, and is controlled by movement of the _______.
Yaw, Rudder
When gliding into a fairly strong headwind, greater distance may be covered over the ground if the speed is kept _____ the best lift/drag ratio speed.
Slightly faster than
The maximum speed at which an airplane can be safely operated in smooth air is called ______.
Never exceed speed (Vne)
An aircraft will stall at any airspeed or altitude if the _____ is exceeded.
Critical angle of attack
In some ways a spiral dive resembles a spin however, in a spin the airspeed ____. In a spiral the airspeed ____.
Constant and low, Increases rapidly.
_____ refers to the shape of the wing as seen from directly above.
Plan view
The point at which the boundary layer changes from laminar to turbulent is called the ______.
Transition point
The steeper the angle of bank for any given airspeed, _____.
The greater the rate of turn and the higher the stalling speed.
In straight and level flight an airplane has a load factor of 1, or 1G. A 60 degree bank turn produces a load factor of ______.
2
The aspect ratio of a wing is computed by dividing the span by the _____.
Average chord.
The _____ of an airfoil is the curvature of the upper and lower surfaces.
Camber
Longitudinal stability is stability around the lateral axis of the aircraft and is called pitch stability. The two principle factors which influence longitudinal stability are _____ and _____.
Size and position of the horizontal stabilizer, the position of the c of g (center of gravity).
Induced drag _____ as the speed of an airplane increases.
Decreases
The tendency of an aircraft in flight to remain in straight, level, upright flight and return to this altitude if displaced without the corrective action of the pilot is called ______.
Stability
______ is the term used to describe the direction of the airflow with respect to the wing.
Relative airflow
The lift drag ratio is determined by _______ .
Dividing the lift coefficient by the drag coefficient.
The air flowing over the upper surface of the wing tends to flow ______.
Faster than air flowing under the wing and inward.
Which of the following factors does not effect the stalling speed (IAS) of an airfoil.
- C of G
- weight
- temperature
- flaps
Temperature
The initial tendency of an aircraft to return to its original position is known as ______ stability.
Static
An aircraft loaded with the C of G too far aft will have _____ tendency.
Nose up
Most high wing aircraft are laterally stable because the wings are attached in a high position on the fuselage and because the weight is therefore low. When the aircraft is disturbed and one wing dips the weight acts as a pendulum returning the aircraft to its original attitude. The cause of this stability is known as _____.
Keel effect
