Ok, I have heard alot about the Mamo models Upside Down system, and have seen Brandon Chitty fly it to perfection. My only question is, Is it still available? If so, where? I have looked all over the internet and have found nothing but hollow shaft versions. I would prefer not to have one of that style. If not available.. Could I make one out of t-rex 450 tail rotor parts and use 500 tail rotor blades on it. Just dreaming of flying backwards some how. Any response on other units used is welcome. Just trying to find out which one is the best and most durable.

Here's where I got mine.

http://www.airlandseahobby.com/other.cfm

Azarr