Airplane

: Generated by the airfoil shape of the wings. Air moves faster over the curved top, creating lower pressure (Bernoulli's Principle) that pulls the wing upward.

: Produced by powerful jet engines or propellers to move the plane forward. airplane

The magic of flight is actually a delicate balance of four physical forces: : Generated by the airfoil shape of the wings

: The downward pull of gravity that pilots must constantly counteract with lift. airplane

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When these forces are in equilibrium, the flight is smooth and stable. 2. A Century of Defiance: Key Milestones