How dohelicopters stay floating in the air? Essentially, helicopters stay up for the same reason airplanesmove forward through the air. A rotating propeller creates changes in airpressure, lowering it in some areas and raising it in others. Combined with aspecially curved wing, the effect is known as lift, and its what pulls anairplane forward or allows helicopters to lift off the ground vertically.Without some sort of rotary propeller system, neither aircraft would ever leavethe ground. Details at http://bit.ly/dxDgX7 -
