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From: Mark Steitle <msteitle@mail.utexas.edu>
Subject: Re: [FlyRotary] Re: Heaters/defrosters
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At 09:21 PM 12/2/2003 -0500, you wrote:
>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."
>                                   Veedube

With the hot oil exchanger, I was remembering Chuck Harbert's experiences 
with two ruptured heat exchangers.  The lower pressure of the hot water 
would be the lesser of two evils.  Also, I have had experiences in cars 
with leaking heater cores.  The big problem there was they fogged the 
windshield.  Still, that could be handled with a towel, or any handy piece 
of clothing obtained from the co-pilot or passengers.  ;-)