Originally Posted by learn2turn

The two loops in Sportsman are probably my most inconsistent move. Sometimes I get it pretty good and sometime my plane wanders at the top deviating from the line almost to the point where it's pointing across the box.

I started to think about what goes on in the physics of a round loop. Compare to what I call a roller-coaster loop, i.e., pull back on the stick hard and the radius decreases at the top of the loop and gradual increases again come out of it. With a loop like that, the plane pulls positive Gs all the way through. Now compare that to a round loop where you ease up on the elevator over the top. During the top, I'm thinking could the plane be pulling negative for a bit, so the inverted wing is providing up lift? Now if the plane is actually flying inverted for a bit, ailerons are going to turn the opposite direction. So if I'm trying to correct the plane to move it a bit further away from me but it goes inverted and then the plane flies toward me instead of away.

I'm trying to figure out what to do to correct this issue if it occurs. I could correct with rudder. Or maybe the answer is speed management so I fly after at the top and don't really go much into negative Gs.

Thoughts?