Vance and Emily Jaqua wrote:

Paul -read your twin fan concept with interest.
 Thought you might like this curve of maximum thrust
from 500 hp for various flow "disk" diameters at
speeeds . This is no loss conversion into jet stream
 power (perfect "pump") real expectations about
75 % of this at low speed to 90's above 250 or so.
3 eff sq ft drag area should be possible with clean
structure and good retracts - Vance

 
The Aircraft Rotary Engine Newsletter.              Powered by Linux.

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