Return-Path: Received: from sccrmhc11.comcast.net ([204.127.202.55] verified) by logan.com (CommuniGate Pro SMTP 4.2.5) with ESMTP id 595019 for flyrotary@lancaironline.net; Fri, 07 Jan 2005 15:55:25 -0500 Received-SPF: none receiver=logan.com; client-ip=204.127.202.55; envelope-from=kenpowell@comcast.net Received: from 204.127.205.142 (unknown[204.127.205.161](misconfigured sender)) by comcast.net (sccrmhc11) with SMTP id <200501072054570110039e1te>; Fri, 7 Jan 2005 20:54:57 +0000 Received: from [166.102.160.133] by 204.127.205.142; Fri, 07 Jan 2005 20:54:56 +0000 From: kenpowell@comcast.net To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Re: oi/water Exchanger Date: Fri, 07 Jan 2005 20:54:56 +0000 Message-Id: <010720052054.16505.41DEF71E000E38A800004079220588448404040A99019F020A05@comcast.net> X-Mailer: AT&T Message Center Version 1 (Dec 17 2004) X-Authenticated-Sender: a2VucG93ZWxsQGNvbWNhc3QubmV0 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="NextPart_Webmail_9m3u9jl4l_16505_1105131296_0" --NextPart_Webmail_9m3u9jl4l_16505_1105131296_0 Content-Type: text/plain Content-Transfer-Encoding: 8bit Rusty, the '83 Mazda oil-to-water cooler weighs 4lb 1oz. Just thoughht you might need the info. Ken Powell Bryant, Arkansas -------------- Original message -------------- I believe that oil/water heat exchangers might be justified in an aircraft installation if for some reason the lay-out precluded getting air to an oil cooler but did permit you to install a larger radiator capable of handling the heat load for the coolant and oil. Otherwise, I don't believe they would work very well in most of our installations. There could be exceptions of course. Ed Anderson Good points of course, but I still can't help but be drawn to the simplicity of having only one scoop, one duct, and one radiator. Even as I type, I'm trying to figure out where I can put a bigger radiator (within cosmetic limits this time) :-) I'm even warming back up (so to speak) to the idea of using the stock 1st gen oil/water exchanger for the single rotor. It was pointed out to me that the stock unit took hot water from the heater outlet, which doesn't really give the heat exchanger the best chance of success. If I get Ken's oil/water exchanger, I'll be mighty tempted to hook it up to the current two radiators to see how it does on the ground. Since I'm not opposed to changing out the evap cores, there might be a way to enlarge the capacity some. Barring all that, it'll make a nice paperweight. Cheers, Rusty (now collecting oil coolers instead of manifolds) --NextPart_Webmail_9m3u9jl4l_16505_1105131296_0 Content-Type: text/html Content-Transfer-Encoding: 8bit

Rusty, the '83 Mazda oil-to-water cooler weighs 4lb 1oz. Just thoughht you might need the info.
Ken Powell
Bryant, Arkansas

-------------- Original message --------------

I believe that oil/water heat exchangers might be justified in an aircraft installation if for some reason the lay-out precluded getting air to an oil cooler but did permit you to install a larger radiator capable of handling the heat load for the coolant and oil. Otherwise, I don't believe they would work very well in most of our installations. There could be exceptions of course.

Ed Anderson

Good points of course, but I still can't help but be drawn to the simplicity of having only one scoop, one duct, and one radiator. Even as I type, I'm trying to figure out where I can put a bigger radiator (within cosmetic limits this time) :-)    I'm even warming back up (so to speak) to the idea of using the stock 1st gen oil/water exchanger for the single rotor.  It was pointed out to me that the stock unit took hot water from the heater outlet, which doesn't really give the heat exchanger the best chance of success.

If I get Ken's oil/water exchanger, I'll be mighty tempted to hook it up to the current two radiators to see how it does on the ground. Since I'm not opposed to changing out the evap cores, there might be a way to enlarge the capacity some. Barring all that, it'll make a nice paperweight.

Cheers,

Rusty (now collecting oil coolers instead of manifolds)

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