I've been flying my 50cc 540T for a long time now. Got one off the first batch and have been flying it since.

From day one I have had trouble with this airframe performing right. It will not harrier, rocks harder than Metallica when you try. Flat spins... nope. Tends to be balky when you try to enter, even trying various entery methods. KE coupling on high alpha is awful to the left but ok to the right, making it very hard to mix out.

All these items together have really dulled my enjoyment of my aircraft. I have done everything I can and am unsure if I want to continue with this airframe or get something new.

All up weight is 16.5 lbs so its light. I have tried the CG everywhere, laterally balanced, sealed the gaps where the wings hit the fuse and everything else I could think of.

A friends edge flys great doing all this and having watched carefully when he flys his, there is no tricks I'm missing. To harrier he just is holding back elevator and crusing arround, the way my cap flys. His spins work great and his KE doesnt couple like mine at all. I asked the builder about it, no tricks at all. Quite frankly I think mine is build as good or better than his, so why wont mine fly worth a damn?

I'm putting it down to freak chance and a bad airframe, but I will open this to discussion before I sell the airframe and get an ultimate to play with.

- Ian