关键词: 大迎角, 稳定性, 传播灵敏度

Abstract: Based on the study of a typical modern fighterat high angles-of-attack according to Bifurcation Analysis and Catastrophe Theory Methodology (BACTM), the fourth Runge-Kutta scheme is adopted to examine the state vector propagation sensitivity during the aircraft's motion. The causes of some jump phenomena of motion are analysed.

Key words: high anales-of-attack, stability, propagation sensitivity