A simple mechanical analogue for studying the dynamic stability of aircraft having nonlinear moment characteristics

Thomas N. Canning
Feb 1954

The analogy between a ball rolling over a contoured surface and a pitching and yawing aircraft is developed. Test results from a model representing a missile with linear moment characteristics are presented to verify the analogy. Several examples of the behavior of nonlinear systems are also given. These examples include results from ballistic-range firings as well as analogue tests.

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