The results of a study on rotary-balance testing for aircraft dynamics are presented. Both the experimental techniques used to obtain rotary-flow aerodynamics data and the procedures involved in using this type of data in the mathematical modeling of the dynamic behavior of a maneuvering fighter aircraft are examined. A special effort was made to summarize experiences involving correlation of dynamic behavior predictions with the observed motions of free-flight models and aircraft in flight. Specific hardware and problems encountered in rotary-balance experiments were addressed for experimental facilities in several countries and advanced applications were noted.


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