I rebuilt my plane after a case of dumb thumbs and took it for a maiden voyage today. As soon as it left the ground the left wing tip hit the ground but survived with no damage. So I took it back to the starting equipment and fired her back up and applied the aileron to the right.

I took off this time but it was still rolling left so i applied full right aileron but it just didnt make any difference what so ever and hit the ground. all the control surfaces moved the correct way I also double checked before i took off and it was still working after i crashed

Could what im describing be a case of not enough of right thrust to the engine or something else. When i balanced the plane there was more weight on the right wing tip not left. So im completley baffled and now got to rebuild my plane again. (PART OF THE FUN OF FLYING)

You might want to explain a little about what you had to rebuild to narrow down the possibilities some.

If your rebuild involved the wing, check to make sure it is straight. My first reaction is it sounds as if the AOA may be greater on the left side causing tip stall and loss of aileron control.

oh yeah. its a high wing trainer with a SC .75 engine

I think he was referring to the previous damage...

What part of the model did you rebuild and what was the previous damage?

Aileron can be your enemy in low speed flight. That is when you are getting hgih adverse yawl just making things worse. In this condition use right rudder to correct the left wing drop.

Bedford

It definitely sounds like the wing is twisted. The best thing to do is check for twist using an incidence meter and straighten the wing.

Dave

There is no aerodynamic reason for your model to do what it's doing outside of a physical misalignment of some form that is creating a trim condition that causes this. I'd suggest you start with a full on alignment/setup survey of your new bitsa model. Ensure that the fin is aligned to a center line and from there check all the other aspects that would cause a roll like wing skew and side thrust angle. One item that may be present that you didn't allow for is that the wing saddle is angled differently side to side. Then when you clamp the wing on it would induce a twist in the wing that may not be there when it's off the model.

There's lots of tricks to alignment checking your model. the old thread or string to check for wing skew, etc. It's a long process where each step relies on the results of the one before it.