I just thought I would post an update on what happened at the field today. I changed the glow plug and that seemed to do the trick. The engine was running great after that and I had it idling at about 2300 RPM.

I took the plane off to see how it would do in the air and it was running perfect. I could pull the throttle back to idle with no problems. So I thought I had all of the problems with this plane taken care of-WRONG! I was doing a low and slow pass over the runway when I heard a *boom* and I could see that something didn't look right with the plane. A pretty good chunk of the covering from the top of the wing had torn off and was flapping in the breeze. I lost about half of the covering on the top of the right wing panel.

For some reason when that happened I lost aileron control. It looked like the piece that was flapping around was wrapping around the aileron and keeping it from moving. When all this happened I immediately cut the throttle as low as I could to just keep it at flying speed. The only way I could turn was by using the rudder so I brought it around and actually got it down on the runway.

When I looked at it up close it was the most amazing thing. It looked like the covering was "cut", there are two perfectly straight tears where it separated. When I installed the covering there were no seams in this area, it was just one solid piece. I have no idea how it could come apart like that.

I think I have had about all I can take with this plane. I know that most of the problems are my fault but I have never worked this hard to keep a plane flying. Does anybody want to buy a Cub that just needs a little bit of the covering repaired