We need a radio controlled boat to tow targets up river.
http://www.bananahobby.com/rc-watercraft-electric-boats.html
http://www.youtube.com/watch?v=CLLAKnVej9o
$39 who cares if it gets popped? LOL
http://www.bananahobby.com/3x-11-inch-hydro-racing-rc-electric-powered-speed-boat.html