At our club, the current rage is SMACs Speedy Miniature Aerobatic Combat planes,. They are small flying wings with GWS narco servos buried in the wing and run on lithium batteries. We actually try to hit one another. In a 20-25 minute session of "Smac"in you might hit or get hit once, It goes into a flat spin, kill the throttle, let it settle a little and fly right out of the fall. They run on one of the smallest GWS motors with a 3x3 prop. The other night we had 4 or 5 in the air at once, it's hilarious. Yea they look like a couple zagis had a live birth, but they are a blast to fly and a great way to blow off a little steam no real stress, they cartwheel, pick em up, toss em back in the air !! A real fun time !