Almost all of us have seen this video by now about the circular runway idea which for every reason why they say this will work, the exact opposite of each reason can prove why it's not possible. Or at the very least, not rational. If you haven't seen it, check out the video above. Keen to try it for yourself? Soarfly Concepts are working on it right now. Because let's face it, the sim is as close to reality this idea will ever get. Agree? Disagree? Either way, gotta be fun to try!
See [THIS] article for the opposing opinion.