B-52E CCV Flight Test Data Applicable to Parameter Estimation
Final rept. Feb-Dec 1975
BOEING WICHITA CO KS
Pagination or Media Count:
Flight test data and a test vehicle description are presented for dual purposes a to provide a means of verifying predictive flexible airplane response computer programs, and b to provide data for developing methods of parameter estimation suitable for such aircraft. The B-52 test data for five transient response maneuvers and three control surface frequency sweep conditions is available on digital computer tapes. A preliminary parameter estimation study introduces techniques for selecting and measuring state vectors, for permitting variations of rate and displacement aerodynamic derivatives with frequency, and for a specialized conversion of difference equation coefficients to differential equation coefficients. Good agreement of theoretical and test derived eigenvalues is shown for rigid body and six elastic modes for the case of aileron frequency sweeps.