Pardon my edit; I changed the title of this thread to be more accurate. I've only seen RTP in pictures and videos. Wikipedia says there is an annual RTP event that takes place in California but I don't remember seeing coverage for this particular event anywhere.

I've never flown RTP so I'm not an authority on the subject but I thought I'd try to explain what I think I know about it for the benefit of others that may read this info. From what I gather, these Flyline airplanes are like C/L in that they are flown within the airspace of a little bit more than a half-sphere but unlike C/L in that the operator stands outside the circle and controls elevator and throttle with an R/C transmitter. Wind is most likely an issue for stability as slack in the "line" cannot be taken out by the operator even though there would be no (R/C) control loss. I assume traditional RTP is similar to this scenario albiet using a mechanical means for remote control which is closer to the purity that control line represents.

Are these airplanes able to perform stunts (loops and wing-overs) like the mfg claims? Their video shows the airplanes performing stunts but only with computer simulation.