1.   Creating lift, the force that keeps flying machines aloft, and maintaining control once airborne, involves a host of aerodynamic factors.

2.   Every part of the plane was constructed to create more lift, enabling the plane to fly for extended periods with its wings vertical to the ground.

3.   He also contributed to research on the winglets used to create lift in airplanes and to a program that has been developing unmanned communications aircraft.

4.   Standard planes would need higher speeds to create lift.

5.   These vortices provide lift to the falling sheets, much the way air passing over an airplane wing creates lift.

6.   At the supersonic speeds at which bullets travel even tiny movements can alter the direction of flight or create lift by changing airflow, the magazine said.