got to the field, put my 4*60 together. Then remembered I'd better check the battery to ensure it was fully charged. Took the wing back off, checked the battery, it was OK. Upon take off, left wing tip touched the ground, so naturally, I figured I'd trim it out in the air. Only after the plane had enough altitude for the wingtip to clear the ground, was it able to finish the aileron roll it had begun (left wing tip touch) on take off. After a moderately successful inverted landing into a bush, I pull the plane apart to discover the aileron leads hanging. I should have taken my chances with the battery.....