Sorry guys, I did that post above off the top of my head. In fact, a CL stunter on 60' lines would have about 49' of straight line to fly from the 45* location to the 5' AGL location. (they follow that path when doing wingovers and the vertical sides of square loops) So from the top of a square loop is actually a trip of about 49' to the bottom of that same square loop.

If the stunter only turned 20' radius turns, then it would be able to fly about 9' sides for it's square loops. Unfortunately, there wouldn't be room for any straight line along the top. There is a fair amount less than 49' of distance up there.

If you've ever seen a decent pattern flown, you know it's quite possible for even average CL stunt flyers to do square looking maneuvers.

So back to the original issue...........