When I try to search this subject, I get all kinds of hits not related to the question. I know that the UAV concept has been around since the 80's or so. Those that I have seen were generally one or two rotor things. And even before that, there was the Hiller platform that used two rotors. I always said that a good fleet of Hiller platforms would have worked quite weill in "desert storm". Anyone have any photos of early quads?