As far as the Q100 with propdrive, found out he made blades from carbon fiber. Am waiting for more info today,possible pics also. Hopefully he can make more blades or complete prop but who can tell. I don't believe it would break any patent laws because that Byron prop drive hasn't been made for a long time. Iron Bay may have parts for it but they don't manufacture it. Their Mustang 50 is a direct drive but they don't show a pic on their web site.