Animation and actual in-flight photography demonstrate the aerodynamic principles of flight. Explains that the principles which govern movement of a fixed wing through air also apply to the rotary wing of helicopters and air craft propellers. Describes the four forces which control flight–lift, thrust, gravity, and drag–in terms of their relationship to the control of all aircraft that fly through the earth’s atmosphere.

We digitized and uploaded this film from the A/V Geeks 16mm Archive. Email us at if you have questions about the footage and are interested in using it in your project.

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