RC airplanes ARE real the exact same laws of physcs and aerodynamics apply as for the man-carrying machines. (and if you saw some of the scale bombers... you'd know that if it were legal... they could carry a man...[X(]They ARE that huge![X(])

Its more a matter of personal preference and a bit of prejudice based on some of the early poor designs of the Coro aircraft. Newer designs are lighter, just as strong and look much better. something about using 2 mm coro for wing skins instead of 4 mm... and other things that are being done to improve the results.