flight training  for pilots was spent learning to control the engine and not firing  machine guns or walking along planks as this movie does suggest.  Also, the silk scarf that the movie stated was for protecting your  neck was actually for wiping away the vast amount of castrol oil  that the rotary engines ejected while running. Finally, a rotary  engine has a very peculiar sound since it has no throttle mechanism  and is either "on" or "off." This was not accurate in this movie.