At work, we've been experimenting with drones in our coal fired utility boilers to do inspections and determine where we need maintenance. I was impressed with what I saw from the hobbyists that started looking into it but never considered getting into it personally. So, a little bit later, I'm also an avid long-range target shooter (out to 1,500 yds or so) and when I shoot a set of 5 or 6 rounds, I have to stop, hop in the truck, and drive to the target to check hits and replace paper target or whatever. So I was thinking. . . and that's where it all started. P4 arrives in about a week.