There are reason of national security that have kept UAV's to specific to the military and specific
research and developement outfits that are also approved by the US goverment. I am afraid what
would happen to this industry if anyone wanted to create UAV's for whatever reason they wanted.
Personally, I would need more information before I gave advise on how to create a UAV out of
any hobby materials.

The R/C hobby industry has come under the gun since 9/11.