Mailing List flyrotary@lancaironline.net Message #31588
From: Bob Perkinson <bobperk@bellsouth.net>
Subject: RE: [FlyRotary] Re: new hangar
Date: Tue, 2 May 2006 06:26:05 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Ed,
What would be the dimensions of the cones if someone were to make them?

Bob Perkinson
Hendersonville, TN.
RV9 N658RP Reserved
If nothing changes
Nothing changes






Sounds like the right formula, George - will wait for your project's outcome
before I try cones.  Yes, I did find some cone  inserts at $60.00 USD each.
I would need 4 for my two tubes - hummm makes one tube sound better all the
time.

Ed


Just the shells, TJ, the 1/8" thick SS washers are history.  I have
concluded that no reasonable thickness of metal will stand up to the
exhaust
pulse for long if it is perpendicular to the shock wave.  I believe that
if
I could shape them into cones where by the shock wave would hit the side
of
the cone  at an oblique angle  would probably survive - now all I have to
do
is find some {:>).

Ed

Ed,
There plenty of SS cones available in 1.6mm, I'm using them in my exhaust
which is a joint venture design with Bill Jepson - the idea is to redirect
the shock waves but not restrict the exhaust, as you have alluded to.
George ( down under)

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