I should have paid attention before. Understanding the NACA duct design clearly calls for the pipe to enter at the narrow end and the exhaust to exit at the wide end.
At 05:04 AM 5/9/2006, you wrote: >At 10:25 PM 5/8/2006, you wrote: > >Mark: > >By NACA ducts do you mean "scavenger" exhaust systems > >where the open exhaust pipe is in the narrow throat of a venturi > >like exhaust stack to aid in reducing exhaust back pressure and > >cool the exhaust? > >Don > > ------------------------------------------------------------------------ > >Check out : >http://home.hiwaay.net/~langford/nacaducts/02082310.jpg Larry Severson Fountain Valley, CA 92708 (714) 968-9852 lar...@socal.rr.com
