Ok fellas, i got the wind together and when i was made the 90 degree bend in the wire to attach the servo arm to it, the wire snaped off . So I contiued to build. Then next part was to install the gas tank. The instructions call for slicone around the fuel tank. Do I really need this? Thanks for all your help

If you don't have silicon, you could just stuff some foam in there

If this is a Tower trainer, they drill a big hole in the firewall for the fuel cap to stick thru, and you need to RTV around it to seal it from leaking fuel to the inside. If insulating the tank, like MinnFlyer said, shove some foam around it.

were can i get rtv around were i live? I dont have a LHS

any auto parts store will have it

Any hardware store or automotive supply store will have it.