X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fmailhost01.isp.att.net ([204.127.217.101] verified) by logan.com (CommuniGate Pro SMTP 5.2.3) with ESMTP id 2954437 for flyrotary@lancaironline.net; Thu, 05 Jun 2008 08:47:51 -0400 Received-SPF: none receiver=logan.com; client-ip=204.127.217.101; envelope-from=rusty@radrotary.com Received: from rad (adsl-065-006-194-009.sip.pns.bellsouth.net[65.6.194.9]) by isp.att.net (frfwmhc01) with SMTP id <20080605124710H0100b92uue>; Thu, 5 Jun 2008 12:47:11 +0000 X-Originating-IP: [65.6.194.9] From: "Russell Duffy" To: "'Rotary motors in aircraft'" References: In-Reply-To: Subject: RE: [FlyRotary] Cooling system Date: Thu, 5 Jun 2008 07:47:04 -0500 Message-ID: <017201c8c70a$4238d3c0$c6aa7b40$@com> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0173_01C8C6E0.5962CBC0" X-Mailer: Microsoft Office Outlook 12.0 Thread-Index: AcjG04pBUBg3zo8kQ+G4S1OC/51rgAANhc4Q Content-Language: en-us This is a multipart message in MIME format. ------=_NextPart_000_0173_01C8C6E0.5962CBC0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Power loss will come form oil temps out of control. Anything over 160 on the oil and power starts down. The mixture runs right into that rotor and it is at about 350 degrees. So much mass is lost to expansion before the port closes. Hi Lynn, For years, you've told us about power loss with higher oil temps, but I'm pretty sure this is the first time you've say WHY it happens. It seems so simple that I'm embarrassed that I hadn't figured it out myself :-) Thanks, Rusty (taking building productivity lessons from Tracy ) ------=_NextPart_000_0173_01C8C6E0.5962CBC0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Power loss will come form oil temps out of control. = Anything over 160 on the oil and power starts down. The mixture runs right into = that rotor and it is at about 350 degrees. So much mass is lost to expansion = before the port closes.

 

Hi Lynn,

 

For years, you’ve told us about power loss with higher oil temps, but = I’m pretty sure this is the first time you’ve say WHY it = happens.  It seems so simple that I’m embarrassed that I hadn’t figured = it out myself :-) 

 

Thanks,

Rusty (taking building productivity lessons from Tracy = <g>)

 

 

 

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