I am an aerospace engineer, and let me tell you planes dont actually fly at all, they repel earth which causes an inherant negative stability in the controlls. planes cant fly in staight lines, Helicopters are a differnt story the gyroscopic precession they create must be countered by the tail rotor, which in turn creats a sidways slip from the thrust, but i think the pilots are still in on it, which explains why the act so strange..