I don't even want to begin thinking about the stability of that design with
its off centreline loading. Vanes can supply vectored thrust for directional
control - not differential thrust ie to lift one side more than the other.
I've done hundreds of hours on ducted fan design and believe me with the
1000 to 1500 lb static thrust you're gonna need for lift alone, you're
talking serious power / fan size. What happens when you throw a blade on any
of the four fans?

This is the experimental ng, so good luck! But like Moller I think the 3D
software is the only working component!

RY To all our supporters and others that are following the development of
RY CityHawk and X-Hawk vehicles - we are making good and steady progress.
RY There is an update on our website. Feel free to go to 'whats new' at
RY www.urbanaero.com

RY Regards,
RY Rafi Yoeli


With best regards, ahlbebuck. E-mail: