Influence of Aerodynamic Asymmetry on Critical Flight Regimes of Subsonic Aircraft and Recovery Control

Stationary and stable periodic modes of spatial motion of an aircraft are considered. The influence of aerodynamic asymmetry on critical flight regimes is studied using direct calculation of their parameters using continuation on a parameter technique. The reasons for the appearance of aerodynamic asymmetry under symmetric flow conditions are described. The influence of the aerodynamic asymmetry on the possibility of entry into a spin and recovery control are analyzed. The sensitivity of the spin parameters to uncertainties of the mathematical model of aerodynamics is studied using robust analysis tools.