X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from access.aic-fl.com ([207.30.253.2] verified) by logan.com (CommuniGate Pro SMTP 5.2.0) with ESMTP id 2722329 for flyrotary@lancaironline.net; Sat, 09 Feb 2008 09:21:49 -0500 Received-SPF: softfail receiver=logan.com; client-ip=207.30.253.2; envelope-from=unicorn@gdsys.net Received: from main (gdsi-36.gdsys.net [207.30.255.36]) by access.aic-fl.com (Rockliffe SMTPRA 4.5.6) with SMTP id for ; Sat, 9 Feb 2008 08:16:55 -0600 Message-ID: <001a01c86b27$060708c0$24ff1ecf@main> From: "Richard Sohn" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Rotor Weight Codes Date: Sat, 9 Feb 2008 08:21:02 -0600 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response Content-Transfer-Encoding: 7bit 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 George, the rotor is not sliding "back and forth" , it only makes a clean circular motion around its own center. The weight only is significant for the centrifugal force on the e-shaft lobe. This is why the rotary can be perfectly balanced. Just trying to keep the rotary straight. Richard Sohn N2071U ----- Original Message ----- From: "Ernest Christley" To: "Rotary motors in aircraft" Sent: Saturday, February 09, 2008 7:49 AM Subject: [FlyRotary] Re: Rotor Weight Codes > George Lendich wrote: >> Ernest, >> I weighted the RX8 rotor, 4222Gram or 149 oz or 9.3 lbs. >> Is my conversion right? > That works according to onlineconversion.com >> That's only .24 lb of a difference between the 89-95 rotors to the RX8. > Considering the accelerations involved in slinging that rotor back and > forth at 2000RPM (speed of the rotor), 1/4lb is significant. > > -- > > http://www.ronpaultimeline.com > > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: > 269.19.21/1266 - Release Date: 2/8/2008 10:06 AM > >