Return-Path: Received: from imf18aec.mail.bellsouth.net ([205.152.59.66] verified) by logan.com (CommuniGate Pro SMTP 4.2b8) with ESMTP id 321395 for flyrotary@lancaironline.net; Wed, 14 Jul 2004 14:06:59 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.66; envelope-from=sladerj@bellsouth.net Received: from JSLADE ([209.214.15.182]) by imf18aec.mail.bellsouth.net (InterMail vM.5.01.06.08 201-253-122-130-108-20031117) with ESMTP id <20040714180629.RWGA1776.imf18aec.mail.bellsouth.net@JSLADE> for ; Wed, 14 Jul 2004 14:06:29 -0400 From: "John Slade" To: "Rotary motors in aircraft" Subject: RE: [FlyRotary] Re: New Scoop Date: Wed, 14 Jul 2004 14:06:27 -0400 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 Importance: Normal >oil temp up to 217 coolant about the same. >Speed only about 120 kts. Didn't retract the nose gear. OK. If you retract the nose gear, does it go down a few degrees? Mine does. Now if you're cruising faster at, say 160kts at 5000ft with the gear up - how does it cool now? >> Last time I flew I was getting a stabalized 205/210 in the climb >> (coolant/oil). When I leveled off at 5000 it settled down to 185. At 11000 >> it was lower until I opened the throttle, then it stabalized at 185. > I'd be happy with those temps Were not comparing apples & apples. My gear was up. I climbed slowly (1000fpm) to 5000, then on to 11000. I'd bet you're temps wouldn't be much higher if you did the same flight. > My coolant sensor is in the water pump housing Mine too. > My oil sensor is in the top of the remote oil filter Mine is close to there > The oil cooler is closest to the scoop, so should be getting more air. I don't think it works like that. I'd say the biggest difference between our installations is the exhaust augmentation / turbo / exhaust shield setup. Very little of the heat from turbo & exhaust gets to stay in the cowl. Sorry to harp on this Steve. I just have a feeling that you're working hard to get the temps lower than they really need to be. If you want minimum drag at cruise, then the temps SHOULD be marginal on a hot day take off and climb. So... get the gear up and back off the throttle till you get in cooler air at cruise speeds. If necessary give it a rest half way up, or use the technique of doing a long approach to cool off before climbing that someone described. If it'll cool ok at full power at cruise height, then you're in good shape. My 2c. John