Back on topic, as far as the capabilities of the P3 go, that video showed how far the P3 can fly on a full battery charge, which was over 6 miles round trip. And thats with an antenna mod on the RC. A normal unmodified setup will lose control signal well before that and initiate RTH with plenty of battery to come home in the same type of straight line flight directly away from the pilot. So the bottom line is, the only thing you need to fear is everything else lol. The AC is trustworthy as long as the pilot is 
