I might have found part of the problem. When replacing my .46fx I noticed that the back of the engine is ever so slightly cocked to the left, pulling the front of the engine to the right. I must have drilled the holes off by a little. It is not noticable when looking from the top, only when looking at the bottom of the engine. It is not very much off, maybe 1/32 to 1/64 of an inch. Maybe that combined with newbe building skills (the thrust line might be too much right) will cause this problem.

Here is the question now. The plane pulls right just about the time that it gets light on the wheels. Could the combination of too much right thrust, left wing traveling slightly faster than the right cause the problem at take off only to dissappear when both wings get enough lift? Like I said, the plane flies fine when I get it in the air and it lands fine.

???