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Beginning of Paper
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One of the first things that is likely to be noticed during a visit to the local airport is thewide variety of airplane styles and designs. No matter what each looks like like they alldepend on the the same four factors which are lift, weight, thrust, and drag
Lift is the upward force created by the effect of airflow ....
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Middle of Paper
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.... of high pressure below the wing and areas of comparatively lower pressure above the wing. This pressure differential, which is created by movement of air about the wing, is the primary source of lift.
The weight of the airplane is not a constant. It varies with the equipment installed, passengers, cargo, and fuel load. During the course of a flight, the total weight of the airplane decreases as fuel is consumed. Additional weight reduction may also occur during some specialized flight activities, such as crop dusting, fire fighting, or sky diving flights.
The direction in whi ....
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