Theories of flight

Theories of flight explain how aircraft stay in the air by understanding how air moves around wings. The most common is Bernoulli's principle: wings are shaped so that air flows faster over the top, creating lower pressure that lifts the plane. Another is Newton's third law: wings push air down, and the equal and opposite reaction lifts the plane upward. Both theories work together to describe how lift is generated. These principles help engineers design wings that produce enough lift for flight, balancing forces like gravity and thrust for stable, controlled flying.