In article ,
"David" wrote:

Any good online resources concerning the design of ducted fans? Hoping to
one day acquire a text on ducted fan design. I've used search engines just
wanting to know if there is something uber-good that I've missed. Thanx.



The main thing you need to know is that ducted fans are simply not worth
the effort -- and, for high speeds -- add more drag than unducted
propellers.