X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao103.cox.net ([68.230.241.43] verified) by logan.com (CommuniGate Pro SMTP 5.1.10) with ESMTP id 2193215 for flyrotary@lancaironline.net; Sun, 22 Jul 2007 17:22:18 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.241.43; envelope-from=alventures@cox.net Received: from fed1rmimpo01.cox.net ([70.169.32.71]) by fed1rmmtao103.cox.net (InterMail vM.7.08.02.01 201-2186-121-102-20070209) with ESMTP id <20070722212140.ISKO1358.fed1rmmtao103.cox.net@fed1rmimpo01.cox.net> for ; Sun, 22 Jul 2007 17:21:40 -0400 Received: from BigAl ([72.192.132.90]) by fed1rmimpo01.cox.net with bizsmtp id SlMf1X00N1xAn3c0000000; Sun, 22 Jul 2007 17:21:39 -0400 From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: Boiling point - -was ' Flying' Date: Sun, 22 Jul 2007 14:23:23 -0800 Message-ID: <000001c7ccae$eac65230$6400a8c0@BigAl> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3138 Perhaps of more interest to us is that with 33% solution of EG in water; and a 23# pressure cap, the boiling point is about 275 F. Al 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 > > > -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html