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. The research is based on a kind of pitch channel hypersonic aircraft model built is released by USA air force, adopting the digital simulation to verify the basic free flight state preliminarily. The difference of the stability and divergent could get observation through the simulation result between hypersonic aircraft’s attitude and attack angle and the traditional low supersonic aircraft. The research is aimed at evaluate the rationality of models, and do the preliminary analysis of the dynamic characteristics of hypersonic aircraft.

Research on free flying of high speed aircraft without control