X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from wproxy.gmail.com ([64.233.184.199] verified) by logan.com (CommuniGate Pro SMTP 5.0.8) with ESMTP id 972179 for flyrotary@lancaironline.net; Mon, 06 Feb 2006 11:53:14 -0500 Received-SPF: pass receiver=logan.com; client-ip=64.233.184.199; envelope-from=russell.duffy@gmail.com Received: by wproxy.gmail.com with SMTP id 69so1055242wra for ; Mon, 06 Feb 2006 08:52:29 -0800 (PST) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:from:to:subject:date:message-id:mime-version:content-type:x-priority:x-msmail-priority:x-mailer:importance:x-mimeole:in-reply-to; b=ARyMz5/T6sL8pnE5x7goO5PrNzYIoAwG4wrJ5u3lGtunDpntujrGequFv0acfcOI+0+Nk9eGL5BWQKFPwgsEzMTgxVS1pE7vrmNJK5GNna/DrG2acmKSSMu21C7WupCwx9hz3KBjsR7yPCMup8qnjW5gyA5/j3hXaL0kRkbO5IM= Received: by 10.54.127.19 with SMTP id z19mr6816904wrc; Mon, 06 Feb 2006 08:52:28 -0800 (PST) Return-Path: Received: from rd ( [65.6.194.9]) by mx.gmail.com with ESMTP id 29sm12696230wrl.2006.02.06.08.52.27; Mon, 06 Feb 2006 08:52:28 -0800 (PST) From: "Russell Duffy" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Single rotor smooth as silk now Date: Mon, 6 Feb 2006 10:52:28 -0600 Message-ID: <00c801c62b3d$b738cbf0$6101a8c0@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00C9_01C62B0B.6C9E5BF0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2670 In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_00C9_01C62B0B.6C9E5BF0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Would a single with no dampers put the resonance beyond the useful range? Good question Ernest. I thought about trying the RD-1C drive with a solid plug where the rubber dampeners normally live, but when I considered that all the normal gear lash play would still be there, I realized it was probably not going to be much of a test. How much gear lash is there on a typical Hirth, or Rotax gear box? Cheers, Rusty ------=_NextPart_000_00C9_01C62B0B.6C9E5BF0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message

Would a single with no dampers put the = resonance
beyond the=20 useful range?

Good=20 question Ernest.  I thought about trying the RD-1C drive with = a solid=20 plug where the rubber dampeners normally live, but when I considered=20 that all the normal gear lash play would still be there, I realized = it was=20 probably not going to be much of a test. 
 
How much gear lash is there on a = typical=20 Hirth, or Rotax gear box? 
 
Cheers,
Rusty
 
 



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