Bryan;

Here's a data point for an inconel tangential manifold/muffler, with the
3/8" racing beat steel flange.   For my 20B the weight is 12.5#.  The
comparable weight for 2-rotor would be 7-8 lbs.

Al G

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
Behalf Of Bryan Winberry
Sent: Sunday, April 26, 2009 5:49 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Exhaust system wall thickness

Sorry for the previous empty message.
Does anyone have a feel for the difference in weight between the stock
manifold and custom SS or inconel, etc.?

Bryan