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Aerodynamics

Photo Above: http://aerosavvy.com/deice/
Aerodynamic design is what allows the aircraft to lift off the ground and stay in the sky. The shape of the wing will allow smooth laminar flow over the wing so there is no cavitation and mixing of the air on the back side. When the air mixed on the back side of the wing, the pressures are very inconsistent and overall lower. This can cause a plane to lose lift while in the air, or if it was climbing the plane could stall and shoot right to the ground (Shaw, Dynamics-2014). The picture above shows how the air flows differently over the two surfaces. In Alaska, our winters pose a large danger if the airlines did not de-ice and properly maintain their planes.

Photo: http://www.cap-ny153.org/forceslift.htm

A force diagram can be made to analyze a wing. We can use our equations of motion to find what the plane will be doing. We can see that the pressure pushing up on the bottom of the wing, is greater than the pressure pushing down on the top of the wing so the net force will up, creating lift (Knight, 2004).

(Sigma) Fx=0
(Sigma) Fy=0
(Sigma) M=0