Return-Path: Received: from misav03.sasknet.sk.ca ([142.165.20.164] verified) by logan.com (CommuniGate Pro SMTP 4.2b1) with ESMTP id 3139513 for flyrotary@lancaironline.net; Wed, 31 Mar 2004 21:10:17 -0500 Received: from oregano.sasktel.net ([142.165.20.197]) by misav03 with InterScan Messaging Security Suite; Wed, 31 Mar 2004 20:10:10 -0600 Received: from sasktel.net (hssxrg69-11-16-227.sasknet.sk.ca [69.11.16.227]) by oregano.sasktel.net (SaskTel eMessaging Service) with ESMTPA id <0HVG00LSJZCSYE@oregano.sasktel.net> for flyrotary@lancaironline.net; Wed, 31 Mar 2004 20:10:10 -0600 (CST) Date: Wed, 31 Mar 2004 20:10:12 -0600 From: Perry Casson Subject: Re: [FlyRotary] Requesting more thoughts on cooling In-reply-to: To: Rotary motors in aircraft Message-id: <406B7A04.1010005@sasktel.net> MIME-version: 1.0 Content-type: text/plain; charset=ISO-8859-1; format=flowed Content-transfer-encoding: 7BIT X-Accept-Language: en-us, en User-Agent: Mozilla Thunderbird 0.5 (Windows/20040207) References: John Slade wrote: > > Do you 13B drivers tend to just taxi out at low rpm then launch? Would > your engine overheat if you did a 15 minute medium power runup? I'd > appreciate any general thoughts, or comments on how much ground > running I should expect to get away with before the temps get too > high. Anything else I should check? > > Regards, > John Slade > > > > > > > Congrats on getting signed off, now the real fun begins! With a engine up front and at the ambient temps I've ran at (65F and below) it could run all day at low to mid power on the ground. With the prop off it would overheat in 5-10 minutes at idle. Being you don't have the big fan blowing air at the rad & cooler I'm not surprised ground running is a problem. I didn't have enough respect for the amount of heat coming off the exhaust and ended up blistering paint on the cowl before I did something about it. I found this stuff does a good job. Perry Casson http://eaa154.dhs.org/perry