ps How do I tell if I have a cmp texan or a knock off version (flymodel). I can't find any manufacturer name on the plane or the one page instruction sheet but I don't know where to look either. Also my plane came without a gas tank-what are the demensions of the tank? I have a lot of tanks lying around and probably have one that will work. The one page instruction sheet says it it 470 cc but does not give the dimensions. I will be flying gas in this plane (zenoah G26), can I use a nitro tank?