X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from elasmtp-spurfowl.atl.sa.earthlink.net ([209.86.89.66] verified) by logan.com (CommuniGate Pro SMTP 5.1.10) with ESMTP id 2193125 for flyrotary@lancaironline.net; Sun, 22 Jul 2007 16:01:45 -0400 Received-SPF: none receiver=logan.com; client-ip=209.86.89.66; envelope-from=Dastaten@earthlink.net Received: from [64.91.205.149] (helo=[192.168.1.100]) by elasmtp-spurfowl.atl.sa.earthlink.net with asmtp (Exim 4.34) id 1IChc4-0008Mc-Hw for flyrotary@lancaironline.net; Sun, 22 Jul 2007 16:01:08 -0400 Message-ID: <46A3B753.9040508@earthlink.net> Date: Sun, 22 Jul 2007 15:00:19 -0500 From: David Staten User-Agent: Mozilla Thunderbird 1.0.7 (Windows/20050923) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: Flying References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-ELNK-Trace: 9a30bff84e6cb88f95c85d38d22416599ef193a6bfc3dd48142d2bde9d6d1eeb2ef278d01853f22f89663e5c6b578e64350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 64.91.205.149 I find that very very interesting then. Doesn't mesh with what I leaned in college chem. Thanks for the chart. Dave Ron Springer wrote: >60% antifreeze and 40% water is the lowest according >to this website which includes a chart: > >http://www.gi.alaska.edu/ScienceForum/ASF6/680.html > >Ron Springer >Folsom, CA > >--- David Staten wrote: > > > >>Steve Brooks wrote: >> >> >> >>>I've been working so many hours lately that I >>> >>> >>really have not had much time >> >> >>>for flying. It had been a month since I had flown >>> >>> >>my turbo rotary powered >> >> >>>Cozy IV, though I had run it on two occasions >>> >>> >>prior. >> >> >>>On the 4th of July, I drained the anti-freeze, and >>> >>> >>replaced it with >> >> >>>distilled water. Well, maybe 5% antifreeze is >>> >>> >>left, but not more than that. >> >> >>>I took of this morning, with the OAT at 70 degrees. >>> >>> >> I took off at my usual >> >> >>>5 lbs of boost on the turbo, and rotated at 80 >>> >>> >>knots about 1500 feet later. >> >> >>>While the flight was outstanding, with smooth air >>> >>> >>an nearly unlimited >> >> >>>visibility, I did not see any marked improvement in >>> >>> >>the straight water, over >> >> >>>the 50/50 water / antifreeze mixture. >>> >>> >>> >>> >>> >>The advantage out of a 50/50 mix is that it will >>boil at a higher temp >>and freeze at a lower temp than any other ratio of >>water/antifreeze. Ask >>any high school chemistry teacher. Improved cooling >>is not typically >>one of the benefits seen, if all other variables are >>kept equal. >> >>Glad you had an uneventful flight. >> >>Dave >> >>-- >>Homepage: http://www.flyrotary.com/ >>Archive and UnSub: >> >> >> >http://mail.lancaironline.net:81/lists/flyrotary/List.html > > > > >-- >Homepage: http://www.flyrotary.com/ >Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html > > >