RE: AMA rule clarification
The rule says that you have to establish a straight or curved flight line. It does not say that the curved line can't be a circle or ellipse in which you fly your airplane, and it does not say that the flight line cannot be adjusted to suit conditions at any time. All they want you to do is not fly over people or property if it can possibly be helped. You can't police the flight line while flying, and I'm sure other users of the park will have something to say if you start chasing them out of the area where you're flying.