Received-SPF: pass
 receiver=logan.com; client-ip=205.152.59.67; envelope-from=bobperk@bellsouth.net
From: "Bob Perkinson" <bobperk@bellsouth.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: SS Exhaust Cones
Date: Wed, 3 May 2006 06:59:43 -0500
Message-ID: <DMEPKACEFFMIBMLLCJNOIEHEDOAA.bobperk@bellsouth.net>
MIME-Version: 1.0
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
In-Reply-To: <list-1089294@logan.com>
Importance: Normal

George,
I have access to a bunch of crusty old boilermakers, that need to be
challenged every now and again.  As long as the measurements are imperial,
and a hammer and cutting torch are involved, I think they can make just
about anything, but don't be looking for a guarantee.  It will be May 18
before I will be back at the plant. I will see if we can make something that
resembles the photo on the web site that Ed posted.  No Guarantees.

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


Bob,
I gather from your correspondence that you can make SS cones or have access
to some who does - true?
George (down under)

> 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)
>
>
> --
> Homepage:  http://www.flyrotary.com/
> Archive and UnSub:   http://mail.lancaironline.net/lists/flyrotary/


--
Homepage:  http://www.flyrotary.com/
Archive and UnSub:   http://mail.lancaironline.net/lists/flyrotary/