----- Original Message -----
From: "Joseph Berki" <joseph.berki@grc.nasa.gov>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Wednesday, December 24, 2003 1:04 PM
Subject: [FlyRotary] Re: Streamline Vs Parabolic Ducts/Diffusers


> Ed,
>          Is the parabolic duct the same as a 7 degree expanding duct?
>
> Joe Berki


No, Joe.  The parabolic curve is not.  But, good suggestion, I'll plot out
the 7 Deg expanding duct and see what it gives.

Ed Anderson