im not an expert and maybee someone else can give you more details. but rc combat is a competition. there are certain size and specs for the planes. like 6 to 10 planes are all launched at one time. each plane has streamers attached to them. the planes dogfight and try to cut each others streamers. and i believe that points are awarded for full, and partial streamer cuts as well as how much streamer is left on your plane. i belive there are some videos here. do a forum search for combat videos.