X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail08.syd.optusnet.com.au ([211.29.132.189] verified) by logan.com (CommuniGate Pro SMTP 5.2.3) with ESMTPS id 2959447 for flyrotary@lancaironline.net; Mon, 09 Jun 2008 05:53:12 -0400 Received-SPF: pass receiver=logan.com; client-ip=211.29.132.189; envelope-from=lendich@optusnet.com.au Received: from george (d58-104-215-70.dsl.nsw.optusnet.com.au [58.104.215.70]) by mail08.syd.optusnet.com.au (8.13.1/8.13.1) with SMTP id m599qM3V014531 for ; Mon, 9 Jun 2008 19:52:24 +1000 Message-ID: <002001c8ca16$84e5e7d0$6400a8c0@george> From: "George Lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Muffler failed designs. Date: Mon, 9 Jun 2008 19:52:22 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001D_01C8CA6A.553CEF20" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 X-Antivirus: avast! (VPS 0657-0, 12/12/2006), Outbound message X-Antivirus-Status: Clean This is a multi-part message in MIME format. ------=_NextPart_000_001D_01C8CA6A.553CEF20 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Michael, Well it's a 2 piece (exhaust header) flange( front piece about 3/16" and = backpiece about 3/16"), the inside part has a small tapered flange of = the hole and the exhaust tube has a matching expanded end which fits = over the small taper ( hard to explain, but obvious when seen) There is = an outside ( exhaust header) flange which clamps everything together ( = no welding) - excellent idea. The only problem is that the inside = exhaust header flange may need to be stamped to get tapered flange = around the hole symmetrical, maybe the outside one as well. I will see = what the costs are. Hope that helps! George (down under) Hi George: As I have not been on PL's list for a while as I changed ISP and never = re-uped my name, could you tell me about this new construction method. Michael in Maine ----- Original Message -----=20 From: George Lendich=20 I haven't been in a hurry to finish it and it's been at the welders = for some considerable time now, however I have taken that time to = re-evaluate it. The recent Everett Hatch method put up by PL is a good = idea to eliminate the problems associated by pipe to flange welding, but = it may have some production issue and may have to be a stamped part. George ( down under) -------------------------------------------------------------------------= ----- Internal Virus Database is out-of-date. Checked by AVG.=20 Version: 7.5.524 / Virus Database: 269.24.1/1469 - Release Date: = 27/05/2008 1:25 PM ------=_NextPart_000_001D_01C8CA6A.553CEF20 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Michael,

Well it's a 2 piece (exhaust = header) flange(=20 front piece about 3/16" and backpiece about 3/16"), the inside part = has a=20 small tapered flange of the hole and the exhaust tube has a matching = expanded=20 end which fits over the small taper ( hard to explain, but obvious = when=20 seen) There is an outside ( exhaust header) flange which clamps = everything=20 together ( no welding) - excellent idea. The only problem is that the = inside=20 exhaust header flange may need to be stamped to get tapered flange = around the=20 hole symmetrical, maybe the outside one as well. I will see what the = costs=20 are.

Hope that helps!

George (down under)

Hi George:

As I have not been on PL's list = for a while=20 as I changed ISP and never re-uped my name, could you tell me about = this new=20 construction method.

Michael in Maine

----- Original Message -----
From:=20 George Lendich

I haven't been in a hurry to finish = it and it's=20 been at the welders for some considerable time now, however I=20 have taken that time to re-evaluate it. The recent Everett = Hatch method=20 put up by PL is a good idea to eliminate the problems associated by = pipe to=20 flange welding, but it may have some production issue and may have = to be a=20 stamped part.

George ( down = under)

Internal Virus Database is out-of-date.
Checked by AVG. =
Version:=20 7.5.524 / Virus Database: 269.24.1/1469 - Release Date: 27/05/2008 = 1:25=20 PM
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