In article , Chris W writes:


Can someone tell me where I can find more information on the design of a
reverse NACA duct?

--
Chris W

"They that can give up essential liberty
to obtain a little temporary safety
deserve neither liberty nor safety."
-- Benjamin Franklin, 1759 Historical Review of Pennsylvania



I don't know of a specific design for one but I am simply mounting one on the
outside of the fuselage with the small end pointing into the airstream. The
air will flow around and over the duct and should result in a negative pressure
at the opening. Another option was one done by the guy who designed the
VISION. It was a small extending bulb with holes on the back side. Again, the
negative pressure on the down wind side results in a reverse flow.


Bob Reed
www.kisbuild.r-a-reed-assoc.com (KIS Builders Site)
KIS Cruiser in progress...Slow but steady progress....

"Ladies and Gentlemen, take my advice,
pull down your pants and Slide on the Ice!"
(M.A.S.H. Sidney Freedman)