----- Original Message -----
From: Ed Anderson <eanderson@carolina.rr.com>
Date: Wednesday, December 10, 2003 12:51 pm
Subject: [FlyRotary] Re: K&W Streamline duct vs 7 deg optimum duct
> Good question, Joe.  I honestly don't have a clue.  The key
> (according to
> K&W)
> appears to be having the side wall diverge just enough so that the
> pressureincrease along the wall (caused by friction slowing the
> airstream) is
> matched by the centrifugal force of the air flowing around the
> curve of the
> wall.
>


Another conundrum.  What is the effect of a twisted plenum?

Nearly all the pictures I've seen show a radiator that is something other than 90degrees to the intake.  Often, the radiator face and intake are parallel.