X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sun, 08 Jan 2006 12:15:19 -0500 Message-ID: X-Original-Return-Path: Received: from secure5.liveoakhosting.com ([64.49.254.21] verified) by logan.com (CommuniGate Pro SMTP 5.0.6) with ESMTPS id 917442 for lml@lancaironline.net; Sun, 08 Jan 2006 09:28:22 -0500 Received-SPF: none receiver=logan.com; client-ip=64.49.254.21; envelope-from=walter@advancedpilot.com Received: (qmail 26310 invoked from network); 8 Jan 2006 08:27:31 -0600 Received: from ip68-108-237-23.br.no.cox.net (HELO ?10.0.1.4?) (68.108.237.23) by rs5.liveoakhosting.com with SMTP; 8 Jan 2006 08:27:31 -0600 Mime-Version: 1.0 (Apple Message framework v623) In-Reply-To: References: Content-Type: text/plain; charset=US-ASCII; format=flowed X-Original-Message-Id: Content-Transfer-Encoding: 7bit From: Walter Atkinson Subject: Re: [LML] Re: Idle power descent? X-Original-Date: Sun, 8 Jan 2006 08:27:29 -0600 X-Original-To: "Lancair Mailing List" X-Mailer: Apple Mail (2.623) Chuck: I agree. I also live in the deep south where it's HOT. Staying at altitude as long as possible is more comfortable. I can descend quickly and the cabin will still be cooler than the OAT when I'm back at the hangar! Walter On Jan 7, 2006, at 10:27 PM, Chuck Jensen wrote: The idea that going to idle at high altitudes will induce shock cooling which will eventually trash the engine seems to have a high 'voodoo' quotient to it. But there is a very good reason not to descend like a rock--efficiency. To gain that altitude, it took a lot of time, gas and loss of airspeed. A cruise descent gains back time, gas and airspeed. A mass at altitude is stored energy; use it. Don't fritter it away by chopping power and dropping into the pattern or approach. Granted, ATC may not always cooperate but never hurts to ask. In smooth air, let Vne set your power. Chuck Jensen -- For archives and unsub http://mail.lancaironline.net/lists/lml/