Hi all,
I am.....relatively new to this hobby, well I been building those lil' Guillow kits and had good luck with them, but over the winter I built my first true trainer, an Air Scout. My father bought the kit about 3 or 4 years ago and started to build it..... then stopped[sm=tired.gif]. So I thought it was time to finish it. A big problem was the fuselage was warped (sittin in the attic the whole time) , but then I fixed it. No problem. After completion, she was all ready to go, with what I am very sure is a .25 (a little larger than specified, I know), but no problem. So I took it down to the local airfield, since the nearest club is 60 miles off. There, I discovered that she had a tendency to......(long pause).........VEER to the right. I heard that a little right thrust was OK, but this was ridiculous ( 50 doughnuts in less than 1 minute). Upon closer inspection, I realized the engine was cocked[&:]. Took her home and fixed it, via eye-balling it with a shim.
Between then and now I started it a few times and made some stationary adjustments ( the carb. would'nt open all the way, but I fixed it too). Today, however, I took another trip to the field. This time I took everything but the kitchen sink, just in case. She still tried to pull right, so I fixed that with a shim, then another shim ( this continues on for about 2 hours). After each shim installment, I tried to fly her, but she only would go outta control and I finally learned exactly how to destroy 2 props in under ten minutes. I did notice that when she reached a good speed ( of course not in a straight line, she curved right all the time [:@]) the wing would come up on the left, drag the right tip, then try to somersault across the ground, busted.....no shattered prop. A few minutes later it happened again ( after the shim installment). No matter how much I tried she didn't want to fly straight. after this last flight the tail wheel got ripped out. went back home and got my three-blade I planned to use on a later plane.
[sm=punching.gif]. So now I removed the other shims and put a piece of pop sickle stick in their place. [sm=lol.gif] . It worked........sort of. It did'nt want to pull as much, if not at all (kinda hard to tell without the tailwheel, but it worked[sm=stupid.gif], absolutely amazing).
Perhaps it was the 3-blade, or the pop sicle stick I happened to be chewing on, but in any case I found a nother problem which I am not too sure I can fix. The wing got warped somehow. I do know for sure that it was'nt like that after construction, she was perfect ( in the most sense). I think it happened while she sat in my garage between the last !QUOT!flight!QUOT! and this one, since it did get a little chilly a few nights, then warm, but I didn't think about it too hard, not I......[:'(] ( should have). So how can I fix that? And what should I look for before the next time around, because she's slowly ripping herself to kindling?
CT

the best way to fix it is with a heat gun. your blow dryer won't get hot enough. you need a heat gun. twist the wing with your hand then apply heat to the covering and remove the wrinkes you formed by twisting it. the wing will have less of a twist. if done right it won't hace a twist.

thanks alot redfox,
I didn't think you could do that. Then again, you can do about any thing (it's wood and plastic, man!!) My heat gun (hangar 9) stretches monokote pretty darn good. Certainly makes it easier than just using the iron only. Now I see that things work better when I'm angry [:@]. haha
Later, CT