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Message-ID: <49ABE57D.6040201@sbcglobal.net>
Date: Mon, 02 Mar 2009 08:56:13 -0500
From: John Slade <sladerj@sbcglobal.net>
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Is the cowling sacrosanct?
References: <list-3522975@logan.com>
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Ernest Christley wrote:
> Jim stopped by to have a look at my Delta project (and the lack of 
> progress thereof).  I pointed out that I plan to mount my second 
> radiator directly to the engine cowling.  He didn't think it was a 
> good idea.
>
> I still don't think it will be a problem, because I have such wide 
> open access to the engine with the hood open.  It'll be just like a 
> fender mounted component in a car.  The duct will also make the 
> cowling stiffer.   The nose provides a portion of lift in the Delta, 
> so mounting a radiator there will provide for an extremely short load 
> path.
>
> Basically, I'm looking for a good reason* not to use the cowl as a 
> mounting point.
>
>
> *"We've always done it that way" is not considered a reason for this 
> discussion.
>
Ernest,
My lower cowl has includes a fiberglass plenum with the rad mounted on 
top and the oil coolers in the sides.  Works fine.
John