X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fmailhost03.isp.att.net ([204.127.217.103] verified) by logan.com (CommuniGate Pro SMTP 5.3.4) with ESMTP id 4179698 for flyrotary@lancaironline.net; Fri, 26 Mar 2010 10:22:47 -0400 Received-SPF: none receiver=logan.com; client-ip=204.127.217.103; envelope-from=keltro@att.net DKIM-Signature: v=1; q=dns/txt; d=att.net; s=dkim01; i=keltro@att.net; a=rsa-sha256; c=relaxed/relaxed; t=1269613366; h=Content-Type: MIME-Version:In-Reply-To:Message-Id:Date:Subject:To:From; bh=qlMuFY 3oqtaK8fKO7RcpX2bvqacxryGsxi4ZId2c5cA=; b=cGHnmYIJbCfQDOfGbLrIlIsT6 CU7IyXdhbqB9U+PKd9IwtBr0NLnQFz1J17n/o1j/hukfyAncKYVGDB1Yf1Mdg== Received: from fwebmail33.isp.att.net ([204.127.221.133]) by isp.att.net (frfwmhc03) with SMTP id <20100326142211H0300shr5le>; Fri, 26 Mar 2010 14:22:11 +0000 X-Originating-IP: [204.127.221.133] Received: from [208.114.43.180] by fwebmail33.isp.att.net; Fri, 26 Mar 2010 14:22:11 +0000 From: "Kelly Troyer" To: "Rotary motors in aircraft" Subject: PM alternator (was) Adaptor plate rivets Date: Fri, 26 Mar 2010 14:22:11 +0000 Message-Id: <032620101422.10773.4BACC3130000087100002A1522243323629B0A02D29B9B0EBF019D9B040A05@att.net> In-Reply-To: X-Mailer: AT&T Message Center Version 1 (Mar 2 2009) X-Authenticated-Sender: a2VsdHJvQGF0dC5uZXQ= MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="NextPart_Webmail_9m3u9jl4l_10773_1269613331_0" --NextPart_Webmail_9m3u9jl4l_10773_1269613331_0 Content-Type: text/plain Content-Transfer-Encoding: 8bit Todd, Speaking of your PM alternator installation do you have any updates to report ?...... -- Kelly Troyer "Dyke Delta"_13B ROTARY Engine "RWS"_RD1C/EC2/EM2 "Mistral"_Backplate/Oil Manifold -------------- Original message from Todd Bartrim : -------------- Early drives like Tracy, Ed, Bill Eslick(? havent heard), Todd Bartrim (havent heard), Chuck Dunlap (havent heard), Tommy James (havent heard) and I (so far) don't seem to have a problem while you and Mark who have slightly later versions are having loosening. (Have we heard from John Slade or Steve Brooks and I missed it?) Any other high-time re-drives that I left out?) - What about Tom Parks? (turbo 20B with Ross Drive). It's possible that power is the main issue (average torque), but it seems to me that peak torque and torque variation amplitude are what are going to matter most. You and Mark are going to have lower peak torque than those of us with turbo engines, and with 20B's you are are going to have lower torque amplitude than even those with n.a. 13B's. Only your average torque is higher. Seems strange... that is why I am wondering about some sort of change to the later mod els of the gear drive. Tracy? -- David Leonard Hi Dave; When I disassembled my plate to install the PM generator rotor cup, I did notice a couple of minor smoke trails from a few of the rivets, However when I drilled them out for disassembly, none of them spun with the drill bit, indicating that they were still tight. Since this is something that I've modified from the original design, I'll certainly pay close attention to it now. Todd --NextPart_Webmail_9m3u9jl4l_10773_1269613331_0 Content-Type: multipart/related; boundary="NextPart_Webmail_9m3u9jl4l_10773_1269613331_1" --NextPart_Webmail_9m3u9jl4l_10773_1269613331_1 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable

Todd,

Speaking of your PM alternator installation do you have a= ny updates to report ?......

--
Kelly Troyer
"Dyke Delta"_1= 3B ROTARY Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifol= d

-------------- Original message from Todd Bartrim <bartri= m@gmail.com>: --------------

Early drives like T= racy, Ed, Bill Eslick(? havent heard), Todd Bartrim (havent heard), Chuck D= unlap (havent heard), Tommy James (havent heard) and I (so far) don't = seem to have a problem while you and Mark who have slightly later= versions are having loosening. (Have we heard from John Slade o= r Steve Brooks and I missed it?) Any other high-time re-drives t= hat I left out?) - What about Tom Parks? (turbo 20B with Ross Drive).= It's possible that power is the main issue (average torque), but it= seems to me that peak torque and torque variation amplitude are what are g= oing to matter most. You and Mark are going to have lower peak torque= than those of us with turbo engines, and with 20B's you are are going to h= ave lower torque amplitude than even those with n.a. 13B's. Only your= average torque is higher. Seems strange... that is why I am wonderin= g about some sort of change to the later mod
els of the gear drive.&nbs= p; Tracy?
--
David Leonard

Hi Dave;
When I disassembled my plat= e to install the PM generator rotor cup, I did notice a couple of minor smo= ke trails from a few of the rivets, However when I drilled them out for dis= assembly, none of them spun with the drill bit, indicating that they were s= till tight. Since this is something that I've modified from the original de= sign, I'll certainly pay close attention to it now.
Todd

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