ROTORWASH, I'M NOT FOLLOWING YOU ABOUT THE ROTOR STRIKING THE TAIL BOOM. HOW IS THAT POSSIBLE UNLESS THERE HAS ALREADY BEEN A STRUCTURAL FAILURE? CAN THE ROTOR PHYSICALLY TOUCH THE BOOM WITHOUT SOMETHING HAVING ALREADY CHANGED POSITIONS STRUCTURALLY? I'M NOT DISAGREEING JUST TRYING TO UNDERSTAND. ON A FIXED WING PLANE THE PROP CAN NEVER TOUCH THE FUSELAGE UNLESS SOMETHING HAS ALREADY BROKEN OR BENT. COMMON SENSE TELLS ME THE SAME ENGINEERING WOULD GO INTO A ROTOR CRAFT.