Airplanes: How we fly Tonnes of steel hurtling through the air at vast speeds and heights; how do airplanes stay up there? And how do these huge birds maintain control while speeding through the sky? This paper examines this question of how heavier-than-air, man-made airplanes fly. Starting with Newton and his Laws of Motion, we know that in order to have an earthbound, vertically stationary object rise into the sky, the vertical force upwards on the plane must be greater than the gravitational force downward (net vertical force is up). Without this condition, flight cannot occur. We also know however that an airplane does not just hover over the ground; it has significant forward motion through the surrounding air as well. So forces in the horizontal and vertical planes together must be examined. In addition it is necessary to examine how these forces can be utilized and modified to give pilots control over direction, altitude, speed and orientation of their airplane.(1,3) Figure 1 The Forces Acting On an Airplane: The four main forces to consider (non-primary forces......

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Page Count: 7.5 (250 words a page / double spaced)

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