Yes, I knew that CF is a conductor. In fact, I've been dealing with purely composite aircraft all year with a 2.4GHz radio. We have played with it with a couple centuries' worth of experience, and have found out that CF is a better conductor through individual fibers than anything (like fiber optics). CF does limit 2.4GHz noticeably....but it's not like you're going to get 0 radio contact because of a strip of CF in the plane.

Either way, my point's the same: most small-scale UAV's won't need ANY carbon fiber in them.

And, as pointed out above, a suitable system can be EASILY scaled up from any platform that works on a small scale.