Return-Path: Received: from ms-smtp-03.southeast.rr.com ([24.93.67.84] verified) by logan.com (CommuniGate Pro SMTP 4.1.1) with ESMTP id 2520425 for flyrotary@lancaironline.net; Tue, 12 Aug 2003 10:59:46 -0400 Received: from o7y6b5 (clt78-221.carolina.rr.com [24.93.78.221]) by ms-smtp-03.southeast.rr.com (8.12.5/8.12.2) with SMTP id h7CEvQaR015928 for ; Tue, 12 Aug 2003 10:57:28 -0400 (EDT) Message-ID: <000801c360e3$89bfd8c0$1702a8c0@WorkGroup> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Cooling / Pressure recovery Date: Tue, 12 Aug 2003 11:08:07 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 > If the engine temperatures have stabalized in one minute of full power > running then it is indeed cooling. But this seems unlikely. I think I can > run at WOT on the ground for 1 full minute (and stay under redlines) but the > temps are still climbing. In three minutes my coolant would be spewing out > of the cowl. Is this a problem? Not at all. > > Tracy > My experience parallels, Tracy's. Depending on OAT, I can run WOT from 1 - 2 minutes during which my temps will be at redline. My normal cruise temps are 160-180F on coolant and oil. So the fact that it does not appear to cool on the ground at WOT may not be significant and I would not worry about it until I had evidence it does not cool in the air. I would recommend that if you are uncertain about it cooling in the air, then have your mind set to make a 1 circuit of the traffic pattern and set her down. Now if you are overheating on the ground at idle then you may have a problem, again depending on OAT. Ed Anderson