Chapter 3: Determining Performance and Limitations
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Across
The direction of the airflow with respect to the wing.
The horizontal distance in inches from the reference datum line to the center of gravity of the item.
A device which gets a useful reaction from air moving over its surface, namely LIFT.
The maximum allowable weight of both the airplane and its contents
In a small airplane or glider is a controlled (recoverable) or uncontrolled (possibly unrecoverable) maneuver in which the airplane or glider descends in a helical path while flying at an angle of attack greater than the critical angle of attack.
The weight of the pilot, copilot, passengers, baggage, useful fuel and drainable oil.
The pressure of a fluid (liquid or gas) decreases at points where the speed of the fluid increases.
The "equal and opposite reaction" of the airplane to the change in direction and it acts "equal and opposite" to the horizontal component of lift.
the product of the weight of and item multiplied by its arm.
The upward acting force
Pressure altitude corrected for nonstandard temperature.
The airframe, engines and all items of operating equipment that have fixed locations and are permanently installed in the aircraft.
Down
The ratio of the total lead supported by the airplanes wing to the actual weight of the airplane and its contents.
The angle between the wing chord line and the direction of the relative wind; it can be changed by the pilot.
Involves Newton's Third Law of Physics- for every action, there is an equal and opposite reaction.
The angle formed by the longitudinal axis of the airplane and the chord of the wing.
Altitude indicated when the altimeter setting window (barometric scale) is adjusted to 29.92.
The maximum speed at which abrupt control movement can be applied or at which the airplane could be flown in turbulence without exceeding design load factor limits.
A condition of improved performance the airplane experiences when it is operating near the ground.
The point about which and aircraft would balance if it were possible to suspend it at that point.
Or weight, the downward acting force
The forward acting force
An imaginary vertical plane or line from which all measurements of arm are taken.
The backward acting force
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