X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from nm21-vm0.access.bullet.mail.mud.yahoo.com ([66.94.236.31] verified) by logan.com (CommuniGate Pro SMTP 5.4.4) with SMTP id 5475319 for flyrotary@lancaironline.net; Tue, 10 Apr 2012 08:59:07 -0400 Received-SPF: none receiver=logan.com; client-ip=66.94.236.31; envelope-from=downing.j@sbcglobal.net Received: from [66.94.237.201] by nm21.access.bullet.mail.mud.yahoo.com with NNFMP; 10 Apr 2012 12:58:31 -0000 Received: from [98.139.221.53] by tm12.access.bullet.mail.mud.yahoo.com with NNFMP; 10 Apr 2012 12:58:31 -0000 Received: from [127.0.0.1] by smtp106.sbc.mail.bf1.yahoo.com with NNFMP; 10 Apr 2012 12:58:31 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sbcglobal.net; s=s1024; t=1334062711; bh=fs+yN/eBxXq9xUtYCwaaJvj5KU59RhbWE23QDxfXb98=; h=X-Yahoo-Newman-Id:X-Yahoo-Newman-Property:X-YMail-OSG:X-Yahoo-SMTP:Received:Message-ID:From:To:References:In-Reply-To:Subject:Date:MIME-Version:Content-Type:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE; b=rzNtdV5OjmxLoh+/BnHXcCjhx/VOKkW4plEEzHfVh3MshDW8sCDZarRM1uw3QFKH1sI+zs4CHQjPYLt4V1s+5bSsF9IzNuu2CBI04EINddE+Mgcro2R4fe9LbsJMXW4Fmkf8jFhv/pntZr34f2ezTOc56Yy/Hk9la1ALz66ahLc= X-Yahoo-Newman-Id: 552272.31651.bm@smtp106.sbc.mail.bf1.yahoo.com X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: FHXiGJYVM1mtc2HEIu.fUO4VJBLcGyf1x2bXaipRGL6ugLb 4.qgLmgr1fTj5VriuOc6Rk5r4iK1iuCNSNZDMzkqNbr5cmA2ykIAMQ3nQIxP oaF77D.bGw1t8G7mmzlX98f7nvLjfNjlg1KDA5PFfI7NCmM3IPqh8c_RqQ2a haBNJon6XkzZP5YLs.N.w7pNVwTbq2vpkGLFL5Qwp8FJaOqhkAf5y4uADoWo lTLouv4kTNgczivPRjtoQr80lB8S32qn6PU8OtquKyCZNbosWZM0FkkCof0U II7_Jk_LF55qfcspyp31DmpmhMzuKebC4.DtIB_GtxiXRiBX36SQxnnKQQAC fcK.GLrW6Lc0lsil_F1B9S.cYl3f36vn.1txUOVb_Pdlzxij1ADKfkMEITPG LOgyxaVDPPBXX80nGGMggpikzc4.B54FzyGtIgc57liTDL1HLIIQbIA.6Noi i4MlPEMf75bJJpmnCHw-- X-Yahoo-SMTP: 4Ss7WYSswBAR3ULsDHPw5yIFKkoakpn6PCJcwuPp3izwMVSl Received: from JohnPC (downing.j@69.208.75.61 with login) by smtp106.sbc.mail.bf1.yahoo.com with SMTP; 10 Apr 2012 05:58:31 -0700 PDT Message-ID: <1F91F37012434F0780DDCCFEAA2B17FF@JohnPC> From: To: "Rotary motors in aircraft" References: In-Reply-To: Subject: Re: [FlyRotary] OMP Date: Tue, 10 Apr 2012 08:59:37 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0031_01CD16F8.42144EA0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Windows Mail 6.0.6002.18197 X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6002.18463 This is a multi-part message in MIME format. ------=_NextPart_000_0031_01CD16F8.42144EA0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Steve, why not run one port to each rotor and return the 4th to the = reservoir tank. JohnD ----- Original Message -----=20 From: Steven W. Boese=20 To: Rotary motors in aircraft=20 Sent: Monday, April 09, 2012 9:49 PM Subject: [FlyRotary] OMP=20 Mark and all, The information that I previously gave on the '86 OMP delivery is in = error. After further analysis of the disassembled OMP, I realized that = the delivery rate for the front two ports depends on the DIFFERENCE = between the diameters of the two sections of the pump piston. The = result is that all four of the ports deliver the same flow rate. This = would make the application of this OMP to a three rotor engine more = difficult, in my opinion. Of course I could be wrong about that, too. I apologize for the mistake. Steve =20 ------=_NextPart_000_0031_01CD16F8.42144EA0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Steve, why not run one port to each = rotor and=20 return the 4th to the reservoir tank.  JohnD
----- Original Message -----
From:=20 Steven W. = Boese=20
Sent: Monday, April 09, 2012 = 9:49=20 PM
Subject: [FlyRotary] OMP

Mark and all,

 

The information that I previously gave on the '86 OMP delivery is = in=20 error.  After further analysis of the disassembled OMP, I = realized=20 that the delivery rate for the front two ports depends on the = DIFFERENCE=20 between the diameters of the two sections of the pump piston.  = The result=20 is that all four of the ports deliver the same flow rate.  This = would=20 make the application of this OMP to a three rotor engine more = difficult,=20 in my opinion.  Of course I could be wrong about that, too.

 

I apologize for the mistake.

 

Steve

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