I think this is totally fabricated. A month ago a R/C flier lost a
wing while doing a high speed snap roll and was able to land the model
by basically flying it in knife edge. Modern R/C ships have such a
high power to weight ratio, you can hover them on the prop. Here's a
link to video and pictures, and the pilot's story:

http://www.rcgroups.com/forums/showthread.php?t=931845

Charlie