Hello Jagnweiner.

Thanks very much for the tip!

Well that should do it. For some reason that i can't explain (because the box was sealed when I opened it up) the tank is completelly full, and now I realized that the hose that goes from the tank to the motor is pinkish in color. Now I understan why, it is full of fuel. This is weird. In any case I am glad I may have the reason for the unbalance.

Ok, so first of all, get the fuel out and re-check the COG.

Regarding your suggestion about an instructor, I have some friends at my local aero club that will give me a hand, I just thought that I would bring in the plane as much ready as possible, that's why was checking the COG.

I have flown before a TwinStar II which is a lot smaller and a Logo10 helicopter, but both of them are electric, hence my lack of experience even spotting a tank full of fuel...lol.

Thanks again!

David