SNIPS...
I hope you don't mind but I have another question.
Have you run into a ground induced vortex or re-circulation in your
ducted fans? I read where that seems to be a problem with the
Osprey.

Paul Lamar

It's not a problem with high disc loaded ducted fans because the through
velocity is so much higher than any re-circulating velocity.  In our case,
the exit velocity is at 90º to the inlet velocity so that re-circulating is
even doubtful, particularly since they are laterally disposed as well.

Paul Moller

The AirCraft Rotary Engine NewsLetter.              Powered by Linux.

http://home.earthlink.net/~rotaryeng/            http://www.linux.org