---------------------------------------------------------- Europa-List Digest Archive --- Total Messages Posted Sat 05/30/09: 7 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 09:06 AM - Re: Boiling Point (Rob Housman) 2. 09:58 AM - Boiling Point (Dave Moore) 3. 10:06 AM - Re: Boiling Point (Frans Veldman) 4. 12:42 PM - Port rudder cable hole in sternpost (rparigoris) 5. 03:45 PM - Radiator Relief (Carl Pattinson) 6. 06:34 PM - Re: Radiator Relief (Robert Borger) 7. 08:37 PM - Re: Port rudder cable hole in sternpost (craig bastin) ________________________________ Message 1 _____________________________________ Time: 09:06:53 AM PST US From: "Rob Housman" Subject: RE: Europa-List: Boiling Point At http://www.engineeringtoolbox.com/ethylene-glycol-d_146.html the boiling point of a 50% mixture of pure ethylene glycol and pure water is given as 107.2 deg C but this is at atmospheric pressure at sea level. Antifreeze also contains other stuff (such as corrosion inhibitors) that will further increase the boiling point, and at higher pressure the boiling point is elevated further. I haven't got the required reference materials at hand, nor do I recall the long ago learned equations used to make the adjustment for pressure, so let's just say that 120 deg C looks close to the boiling point. A detailed discussion of antifreeze at elevated temperatures can be found at http://www.newton.dep.anl.gov/askasci/chem03/chem03987.htm Also, how accurately is the temperature and pressure known? While the temperature probably correct to within a few tenths of a degree I suspect that the pressure is likely to be less accurately known. Best regards, Rob Housman Irvine, CA Europa XS Tri-Gear A070 Airframe complete -----Original Message----- From: owner-europa-list-server@matronics.com [mailto:owner-europa-list-server@matronics.com] On Behalf Of Goff Sent: Friday, May 29, 2009 11:31 PM Subject: Europa-List: Boiling Point Does anyone know the centigrade boiling point of 50/50 glycol/water coolant in a 912ULS with a 1.2 bar pressure cap ? We can exceed the 120C maximum on long taxis on hot days but do not seem to lose any coolant. So at what temperature does it actually boil? Goff Moore G-CHOX Visit - www.EuropaOwners.org ________________________________ Message 2 _____________________________________ Time: 09:58:19 AM PST US From: "Dave Moore" Subject: Europa-List: Boiling Point Goff, I've looked up your question on the boiling point of 50:50 glycol:water at about 1 barG. See: http://auto.howstuffworks.com/cooling-system7.htm Looks like the 50:50 glycol:water boiling point at atmospheric pressure is 106 deg C At 1-1.2 BarG, the boiling point increases by about 25 deg C, i.e. its boiling point will be about 130 deg C. (Usual caveats about getting data from the internet, apply..!) Regards, Dave Moore Aberdeen, UK ________________________________ Message 3 _____________________________________ Time: 10:06:15 AM PST US From: Frans Veldman Subject: Re: Europa-List: Boiling Point Goff wrote: > > Does anyone know the centigrade boiling point of 50/50 glycol/water coolant in a 912ULS with a 1.2 bar pressure cap ? In my setup, with 1.2 bar pressure cap and a 50/50 mixture, and two independant gauges (CHT & coolant), I can reach 130 degrees without spoiling coolant. At these temperatures however, I can hear after shutdown some "boiling noises", so the coolant reaches at some locations the boiling point (as can be expected), but doesn't spill yet. - Frans Veldman ________________________________ Message 4 _____________________________________ Time: 12:42:36 PM PST US Subject: Europa-List: Port rudder cable hole in sternpost From: "rparigoris" Curiosity. Anyone have picture of your port rudder cable hole in sternpost of a standard XS with tailwheel? I needed to make a "Grad Canyon" sized slot that is closer to the tailwheel spring than I would have liked. Any comments welcome. Page 2, picture 101 and 102: http://www.europaowners.org/modules.php?set_albumName=album223&op=modload&name=gallery&file=index&include=view_album.php Ron Parigoris Visit - www.EuropaOwners.org ________________________________ Message 5 _____________________________________ Time: 03:45:42 PM PST US From: "Carl Pattinson" Subject: Europa-List: Radiator Relief X-mailer: iAVMailScanner 1.5.6.4 Anyone used this stuff? Looks interesting. http://www.agriemach.com/product_info.php?cPath=0_60&products_id'3 ----- Original Message ----- From: Sent: Monday, May 25, 2009 9:07 PM Subject: Europa-List: Rotax tacho > > > > Many thanks to those who replied re Rotax tacho - 200 ohm resister worked > a > treat. Just put it across the terminals of the tacho rather than the coils > as > pictured in the Rotax owners 'fix' document. Do believe we may be running > short > of jobs to do. > > Regards > > Paul > G-GIDY > > _______________________________________ No viruses found in this outgoing message Scanned by iolo AntiVirus 1.5.6.4 http://www.iolo.com ________________________________ Message 6 _____________________________________ Time: 06:34:06 PM PST US From: Robert Borger Subject: Re: Europa-List: Radiator Relief FYI also check out: http://www.turbomagazine.com/features/0703_turp_cooling_system_additives/test_results.html for more information on coolant additives. Seems like they may work. Bob Borger Europa Kit #A221 N914XL, XS Mono, Intercooled 914, Airmaster C/S http://www.europaowners.org/N914XL Aircraft Flying! 3705 Lynchburg Dr. Corinth, TX 76208 Home: 940-497-2123 Cel: 817-992-1117 On May 30, 2009, at 17:44, Carl Pattinson wrote: > > > > Anyone used this stuff? > > Looks interesting. > > http://www.agriemach.com/product_info.php?cPath=0_60&products_id'3 > ________________________________ Message 7 _____________________________________ Time: 08:37:17 PM PST US From: "craig bastin" Subject: RE: Europa-List: Port rudder cable hole in sternpost I had the same "large" hole. Due to the hinge position and geometry of the whole arrangement I dont see another option except for the generous hole. craig -----Original Message----- From: owner-europa-list-server@matronics.com [mailto:owner-europa-list-server@matronics.com]On Behalf Of rparigoris Sent: Sunday, 31 May 2009 5:44 AM Subject: Europa-List: Port rudder cable hole in sternpost Curiosity. Anyone have picture of your port rudder cable hole in sternpost of a standard XS with tailwheel? I needed to make a "Grad Canyon" sized slot that is closer to the tailwheel spring than I would have liked. Any comments welcome. Page 2, picture 101 and 102: http://www.europaowners.org/modules.php?set_albumName=album223&op=modload&na me=gallery&file=index&include=view_album.php Ron Parigoris Visit - www.EuropaOwners.org Checked by AVG - www.avg.com 17:53:00 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message europa-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Europa-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/europa-list Browse Digests http://www.matronics.com/digest/europa-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.