IRT the Airbus crash - I think I remember the Feds saying something in the Aftermath along the lines of "OK, at Va you can deflect ONE control fully and not break the airplane. No fair stomping rudder AND yanking and banking." It's possible my quote isn't an exact replica. . .I've had it in my head that elevator deflection at/below Va was the important input in GA aircraft - so as to stall the wing before breaking it?