Development of Advanced Techniques for the Identification of V/STOL aircraft Stability and Control Parameters
Final rept. May 1969-Dec 1970
CORNELL AERONAUTICAL LAB INC BUFFALO NY
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Contemporary analyses of transition flight of VSTOL aircraft are based on aerodynamic data measured in a wind tunnel or on analytical prediction using methods developed for conventional aircraft. The validity and accuracy of these techniques for VSTOL aircraft has not yet been established, and it is essential that they be correlated with flight test data through parameter identification. In spite of the complicated nature of VSTOL dynamics in transition, some method of identifying these characteristics is required. This report documents the development of identification techniques to meet this requirement. The report first presents the selection of a mathematical model to represent a VSTOL aircraft the X-22A. This is followed by a discussion of available identification techniques. Based upon a thorough knowledge of the requirements of this program and the limitations of the available techniques, advanced techniques suitable for identification of VSTOL aircraft stability and control parameters are developed.
- Fluid Mechanics