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Date: Wed, 3 Dec 2003 20:17:39 -0800
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
From: Ken Welter <rotary.coot@verizon.net>
Subject: [FlyRotary] Re: Heaters/defrosters
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X-Authentication-Info: Submitted using SMTP AUTH at out008.verizon.net from [65.239.57.4] at Wed, 3 Dec 2003 22:16:28 -0600

   If you are planing on flying into real cold weather I think you 
would have to recirculate inside are rather than try and heat cold 
outside air.
  Still could be done with two flapper valves and a fan.

  Ken


>I'm building a cozy MKIV, and I plan to use a heater core, which will run
>coolant through it all of the time, and act as secondary cooling.  I will
>then use a flapper to either dump the output air from the heater core into
>the engine compartment, or into the cabin.
>
>Steve Brooks