X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from QMTA02.emeryville.ca.mail.comcast.net ([76.96.30.24] verified) by logan.com (CommuniGate Pro SMTP 5.2.0) with ESMTP id 2777684 for flyrotary@lancaironline.net; Wed, 05 Mar 2008 02:19:24 -0500 Received-SPF: none receiver=logan.com; client-ip=76.96.30.24; envelope-from=gregw@onestopdesign.biz Received: from OMTA13.emeryville.ca.mail.comcast.net ([76.96.30.52]) by QMTA02.emeryville.ca.mail.comcast.net with comcast id xKF51Y00217UAYkA200400; Wed, 05 Mar 2008 07:18:01 +0000 Received: from gregoryii ([24.6.40.29]) by OMTA13.emeryville.ca.mail.comcast.net with comcast id xKJd1Y0060dkeQQ8Z00000; Wed, 05 Mar 2008 07:18:39 +0000 X-Authority-Analysis: v=1.0 c=1 a=h7OD4YZ1DpoA:10 a=UAkAClN7zkmm2-kF5oQA:9 a=HX8AVSw7a34ShO7J7EeTjFhDxq8A:4 a=U8Ie8EnqySEA:10 a=6-x43y6uxGMA:10 a=3oc9M9_CAAAA:8 a=ffFHrxsST_OwYOrFb5oA:9 a=P-PxuwTu3NHfyCG7W9MA:7 a=5XnohK5sEKztDstdJ0Gu5DOEy1AA:4 a=EzXvWhQp4_cA:10 a=AfD3MYMu9mQA:10 Message-ID: <010b01c87e91$7963f210$8801a8c0@yosemite.onestopdesign.biz> From: "Greg Ward" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Exhaust? was [FlyRotary] engine installation pictures Date: Tue, 4 Mar 2008 23:21:02 -0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0108_01C87E4E.69985940" 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 This is a multi-part message in MIME format. ------=_NextPart_000_0108_01C87E4E.69985940 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable No answers to any of these questions Bill. I will call Brian tomorrow = and see what's up, and get some specifics. He brought it up because we = have been talking about the turbocharging issue, and how/where to locate = all of the parts, including shielding. Greg ----- Original Message -----=20 From: WRJJRS@aol.com=20 To: Rotary motors in aircraft=20 Sent: Tuesday, March 04, 2008 10:57 PM Subject: [FlyRotary] Re: Exhaust? was [FlyRotary] engine installation = pictures In a message dated 3/4/2008 8:32:11 PM Pacific Standard Time, = gregw@onestopdesign.biz writes: Yeah, and my friend in SoCal, the Racer again, says that the 20B = racers down there wrap, and it really helps. But then again, = racers...... Greg Greg, And they tested this how? With what instrumentation? So you know I = have built racing cars and bikes for others and I have road raced = motorcycles myself. The only coating or wrap I could find that worked = was the Jet-Hot coating. That was on a motorcycle. The in cowl temps = were reduced by 15=B0F. There wasn't any HP increase that I could = determine reliably. I did record an increase on the wheel dyno but not = enough to be certain it wasn't just different temp and baro pressure = conditions. The rotary exhaust temperature is so much hotter that = Jet-Hot has only had a suitable coating for about a year and a half. I'd = try that if you must. Shielding, even thin and close has proven to be = effective, as has zirconia ceramic blanket. The wrap may not have = actually caused the cracking on the exhaust system mentioned previously = but it certainly makes it impossible to detect cracks before they get = dangerous. I'd stay away from wraps for just that reason. Bill Jepson -------------------------------------------------------------------------= ----- It's Tax Time! Get tips, forms and advice on AOL Money & Finance. ------=_NextPart_000_0108_01C87E4E.69985940 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
No answers to any of these questions Bill.  I = will call=20 Brian tomorrow and see what's up, and get some specifics.  He = brought it up=20 because we have been talking about the turbocharging issue, and = how/where to=20 locate all of the parts, including shielding.
Greg
----- Original Message -----
From:=20 WRJJRS@aol.com
Sent: Tuesday, March 04, 2008 = 10:57=20 PM
Subject: [FlyRotary] Re: = Exhaust? was=20 [FlyRotary] engine installation pictures

In a message dated 3/4/2008 8:32:11 PM Pacific Standard Time, gregw@onestopdesign.biz=20 writes:
Yeah, and my friend in SoCal, the Racer = again, says=20 that the 20B racers down there wrap, and it really helps.  But = then=20 again, racers......
Greg
Greg,
And they tested this how? With what instrumentation? So you know = I have=20 built racing cars and bikes for others and I have road raced = motorcycles=20 myself. The only coating or wrap I could find that worked was the = Jet-Hot=20 coating. That was on a motorcycle. The in cowl temps were reduced by = 15=B0F.=20 There wasn't any HP increase that I could determine reliably. I did = record an=20 increase on the wheel dyno but not enough to be certain it wasn't just = different temp and baro pressure conditions. The rotary exhaust = temperature is=20 so much hotter that Jet-Hot has only had a suitable coating for about = a year=20 and a half. I'd try that if you must. Shielding, even thin and close = has=20 proven to be effective, as has zirconia ceramic blanket. The wrap may = not have=20 actually caused the cracking on the exhaust system mentioned = previously but it=20 certainly makes it impossible to detect cracks before they get = dangerous. I'd=20 stay away from wraps for just that reason.
Bill Jepson



It's Tax Time! Get=20 tips, forms and advice on AOL Money &=20 Finance.
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