Return-Path: Received: from [65.33.85.194] (account ) by logan.com (CommuniGate Pro WebUser 4.1b9) with HTTP id 2475089 for lml@lancaironline.net; Mon, 14 Jul 2003 18:52:28 -0400 From: "Marvin Kaye" Subject: Re: [LML] Re: ES Cabin Heat To: lml X-Mailer: CommuniGate Pro WebUser Interface v.4.1b9 Date: Mon, 14 Jul 2003 18:52:28 -0400 Message-ID: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1"; format="flowed" Content-Transfer-Encoding: 8bit Posted for "glong2" : Dino/Skip: I wonder if the limited air is caused by the 1.5" input hose that Lancair calls for? On my ES I used the 1.5" hose as the input to the first heat muff, 2" to the second, and 2" into the cabin with an Aircraft Spruce SS inlet box. I have not flown yet but to use a 2" input hose to the muff and a 1.5" output does not make good engineering sense. (PV=nRT) It seems to me there are many places for the air to escape (>= to 6 sq in). That is, unless you were to seal all the penetrations (aileron control rods, flap control arm, rudder control, etc.) to minimize cold air flow. I don't intend to seal openings until I fly to see how effective the heater is. Eugene Long Lancair Super ES glong2@netzero.net >>>Dino, I have the same low airflow problem with my ES's heating. One thing that may be contributing to it is that I have a T fitting in the air hose to my heat muff that diverts some air to my gascolator shroud. <<<