How do you analyze aircraft characteristics for upset recovery?

Upset recovery analysis ensures aircraft can recover from unusual attitudes: Define upset envelope (attitudes exceeding normal flight, typically >25 deg pitch, >45 deg bank, >stall AOA), Analyze aerodynamics in upset region (stall characteristics, control effectiveness), Evaluate recovery control power (pitch down authority with aft CG, roll authority at stall), Assess departure resistance (directional stability, spin susceptibility), and Validate recovery procedures through simulation and flight test. Considerations: High AOA lateral-directional coupling, Engine effects at unusual attitudes, Control reversal possibilities, and Pilot recognition and response time. Certification (FAR 25.143(h)) requires demonstration of recovery. Training programs (UPRT) based on these characteristics improve pilot response. Analysis supports flight envelope protection design in FBW aircraft.