Well here is my 2 cents about this. Vegasjet has only 18 posts, has not responded since the first post in this thread, has very little if ANY rc experience and wants to build a 144 inch UAV. GET REAL! Can you see the head lines now? "Home built UAV crashes into crowd killing several people". Even at 100mph, it would cover ground very quickly, enough to be back in the "City" very fast.

Now reuven segal, I live about 2.5 hours from New York City and Washington DC. My Australian history is not the best but when was the last time you had hijacked planes flown into two LARGE public buildings and a government building killing WAY too many people? I think we as US citizens have every right to question and be wary of people like vegasjet. My brother-in-law lost several friends and co-workers in the 9/11 attacks on the WTCs. Guys like vegasjet DRAW the wrong kind of attention to our hobby and create problems. There is nothing wrong with experimenting with UAVs and autonomous aircraft by experienced people! A 10 pound UAV with a 1.20 4 stroke on it sounds like a cool idea to start with but a 144 inch 30 pound UAV is a disaster waiting to happen.

Being an experienced rc pilot with a complete understanding of navigational systems should be a requirement before even thinking about a project like this.