Without a long explination, I can tell you that the combat pilot's stations and flightline at a combat meet are far far safer than on a Sunday afternoon sport flying day. Yes incidences do happen, but butt pucker occurences on Sport flying afternoons outnumber them 10 to 1. Comabt is the most exciting and intense form of R/C flying that exists, but it is also the most safety consious group of pilots, and the RCCA has gone to great lengths to assure that it is the safest form of R/C flying that exists. The combat arena layout, engagment set back and hardhats are part of that