Guidance and Control for Steady Deep Stall Landing of Aircraft with Wing Articulation and Lifting Surfaces in Propeller Flow

Deep stall landings can enable fixed-wing aircraft to operate from highly constrained spaces. A deep stall landing maneuver is characterized by flight in a narrow, high-alpha regime wherein control authority along all three rotational axes is limited and the low flight speed is comparable to that of typical ambient gusts. In this paper, the problem of designing a guidance controller for precise landing in the presence of ambient gusts is addressed. Wing articulation is employed for lateral-directional control at high alpha. The concept of motion primitives is used to design guidance laws compatible with atypical trim characteristics at high angles of attack.