题目内容
A ____will reduce the ground speed needed for takeoff, as there is a greater flow of air over the wings.
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For a given aircraft, the takeoff speed is usually directly____ to the aircraft weight; the heavier the weight, the greater the speed needed.
Some aircraft specifically designed for short takeoff and landing can even become____ from a standing start when pointed into a sufficiently strong wind.
The takeoff speed required varies with air density, aircraft gross weight, and aircraft ____ (flap and/or slat position, as applicable).
This relationship between temperature, altitude, and air density can be expressed as a____altitude, or the altitude in the International Standard Atmosphere at which the air density would be equal to the actual air density.
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