Return-Path: Received: from out002.verizon.net ([206.46.170.141] verified) by logan.com (CommuniGate Pro SMTP 4.1.8) with ESMTP id 2781412 for flyrotary@lancaironline.net; Tue, 02 Dec 2003 23:05:29 -0500 Received: from [65.239.43.120] ([65.239.43.67]) by out002.verizon.net (InterMail vM.5.01.06.06 201-253-122-130-106-20030910) with ESMTP id <20031203040527.PYKW6358.out002.verizon.net@[65.239.43.120]> for ; Tue, 2 Dec 2003 22:05:27 -0600 Mime-Version: 1.0 X-Sender: res0c5l1@incoming.verizon.net Message-Id: In-Reply-To: References: Date: Tue, 2 Dec 2003 20:05:37 -0800 To: "Rotary motors in aircraft" From: Ken Welter Subject: [FlyRotary] Re: Heaters/defrosters Content-Type: multipart/alternative; boundary="============_-1141698076==_ma============" X-Authentication-Info: Submitted using SMTP AUTH at out002.verizon.net from [65.239.43.67] at Tue, 2 Dec 2003 22:05:26 -0600 --============_-1141698076==_ma============ Content-Type: text/plain; charset="us-ascii" ; format="flowed" >Mark Steitle wrote: >Is there a "best practice" for cabin heat/defrost systems for rotary > >> >>Comments welcome, >>Mark S. (hot oil exchanger is out of the question) >> >>>> Homepage: http://www.flyrotary.com/ >>>> Archive: http://lancaironline.net/lists/flyrotary/List.html >>> >> > >Why is the oil exchanger out of the question? I don't see how it >could be any more dangerous than a muff. > >My plan is to duct either a radiator or the oil cooler so that I >pick up cabin air both in front and behind the heat exchanger. The >cool air pickup in front of the heat exchanger will run through an >icebox, and then both ducts will run into a cabin controlled 'mixer' >to give the maximum in pilot/passenger comfort. > >-- >http://www.ernest.isa-geek.org/ >"Ignorance is mankinds normal state, > alleviated by information and experience." > Veeduber A problem with oil is that I have had problems with keeping the oil warm enough in cold weather where the water thermostat seems to be more stable. In cold weather my oil will drop to 120 degrees or less where the water will hold at 180. Ken --============_-1141698076==_ma============ Content-Type: text/html; charset="us-ascii" [FlyRotary] Re: Heaters/defrosters
Mark Steitle wrote:
Is there a "best practice" for cabin heat/defrost systems for rotary
<snip>

Comments welcome,
Mark S. (hot oil exchanger is out of the question)
 Homepage:  http://www.flyrotary.com/
 Archive:   http://lancaironline.net/lists/flyrotary/List.html



Why is the oil exchanger out of the question? I don't see how it could be any more dangerous than a muff.

My plan is to duct either a radiator or the oil cooler so that I pick up cabin air both in front and behind the heat exchanger. The cool air pickup in front of the heat exchanger will run through an icebox, and then both ducts will run into a cabin controlled 'mixer' to give the maximum in pilot/passenger comfort.

--
http://www.ernest.isa-geek.org/
"Ignorance is mankinds normal state,
  alleviated by information and experience."
                                  Veeduber
 

  A problem with oil is that I have had problems with keeping the oil warm enough in cold weather where the water thermostat seems to be more stable.
 In cold weather my oil will drop to 120 degrees or less where the water will hold at 180.

  Ken
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