RE: 4th gen A-10 by Mibo jets
I personally think that ordinance adds more drag than the fans. I took most of my bombs and missiles off last weekend because I was nervous about the fans and I think it flew faster and smoother with them minus the ordinance. So I plan on putting them back.
This might seem like a dumb theory but I think once the fans spool up I think they let almost as much air through as the original screen I had. It does neck down inside so only so much is getting through there anyway. You're gonna have a lot of fun with this plane.