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The airplane shown on this slide is a turbine-powered airliner which has been chosen as a representative aircraft. For any airplane to fly, one must lift the weight of the airplane itself, the fuel, the passengers, and the cargo. The wings generate most of the lift to hold the plane in the air.
Instrument Flying Handbook, Angle of Attack and Relative Wind. Lift is the critical aerodynamic force that brings an aircraft to fly. The dynamic effect of the air moving across an airfoil produces lift. Common airfoils include the wings, flaps/slats, and stabilizers.
To understand how an airplane wing produces lift, Bernoulli’s Principle and one of Newton’s Laws should be reviewed. Bernoulli’s Principle states in part that “the internal pressure of a fluid (liquid or gas) decreases at points where the speed of the fluid increases.”
lift to circulation for 2-D flow past a circular arc with a trailing edge. In 1906 Nikolai Joukowski in Russia generalized the lift theorem, now called the “Kutta-Joukowski lift theorem,” [7] relating circulation to the lift, perpendicular to v∞, for any two-dimensional airfoil: Lift/w = −ρv∞ Γ. The value of Γ depends on
Use diagrams, videos and/or animations that are readily available online to illustrate the concept that the air moving over the wing (due to the shape of the wing and/or the angle of attack) moves faster than the air moving under the wing.
Students of physics and aerodynamics are taught that airplanes fly as a result of Bernoulli's principle, which says that if air speeds up the pressure is lowered. Thus a wing generates lift because the air goes faster over the top creating a region of low pressure, and thus lift.
pressure distribution acting on the surfaces of the airplane can be resolved into the total lift and drag forces. In addition to the aerodynamic forces of lift and drag, there are so-called inertia loads resulting from the accelera-
