In normal RC combat, planes fly while towing a paper streamer, and attempt to cut each other's streamers. Points are awarded for streamers cut, for the amount of one's own streamer that remains, and for continuous flight. As a competitive community, these pilots perform valuable functional testing of powerful airframes. While midair collisions do happen frequently, that is not the aim nor the points incentive.
 Full Contact
Full contact combat involves a last-man-standing attempt to collide with another airplane, but still stay in the air. While this is a less common activity, the planes for this tend to be scratchbuilt, ruggedized examples, with a competitive balancing act between fast, maneuverable, durable, easy to repair, and aerodynamically self-recovering. While these planes are sometimes marked with streamers, the incentive is to achieve midair collisions.
- Building a 'Warp', a full contact combat RC aircraft - Instructables