Why aeroplane can not fly without air
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As the plane's engines move the wings forward, the air has to flow both over and under them. The wings are designed so that net effect is that the air pushes them upward, countering the downward pull of gravity. Large passenger planes can't fly much higher than about 12 kilometers (7.5 miles).
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A main reason airplanes can't fly in space is because there is no air. According to NASA, large commercial airplanes typically can't fly higher than 7.5 miles
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