---------------------------------------------------------- Europa-List Digest Archive --- Total Messages Posted Wed 09/09/09: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 03:38 AM - Congrats to Jeff,Cooling feedback for Bud (Remi Guerner) 2. 10:35 PM - What exactly does the 4 UNI layup do on the wing root do? (rparigoris) 3. 11:34 PM - Wings that move (rparigoris) ________________________________ Message 1 _____________________________________ Time: 03:38:21 AM PST US From: "Remi Guerner" Subject: Europa-List: Congrats to Jeff,Cooling feedback for Bud Hi all, I have been following the cooling discussion with great interest as I have done my own modifications to the cowling over the years with good but not 100% satisfactory results. As for most Rotax equipped Europas, the main issue is overheating on the ground at high ambient temperatures. Worst case is when you land, stop for 5 minutes, start the engine for another flight and have to hold for a long time due to traffic before being cleared for take off, especially if there is no wind or you cannot face into it. An effective validation test for any cooling improvement should be: ambient temperature 30-35=B0C (90=B0F, to be adjusted depending on where you fly), no wind. After a short flight, taxi to the parking area, and run the engine at high idle (2000-2200 RPM). Note the CHT every minute. I would consider this test to be 100% satisfactory if I get the CHT STABILIZED not higher than 110=B0C (230=B0F). Up to now I have not managed to pass this test successfully at ambient temperatures above 23=B0C (67=B0F). Could those who have done their own cooling modifications try this test and let us know the results? Best regards Remi Guerner F-PGKL, Monowheel, 912S, 696 hours ________________________________ Message 2 _____________________________________ Time: 10:35:50 PM PST US Subject: Europa-List: What exactly does the 4 UNI layup do on the wing root do? From: "rparigoris" What exactly does the 4 UNI layup do on the wing root do? Perhaps tie the spar to the front and rear lift pins better than if it was not there? Thx. Ron Parigoris Visit - www.EuropaOwners.org ________________________________ Message 3 _____________________________________ Time: 11:34:03 PM PST US Subject: Europa-List: Wings that move From: "rparigoris" I know that plastic aeroplanes change shape. I finished filling the bottom of the starboard wing forward and aft of the spar where there was a flat spot and in 85F degree heat it was nice and smooth. Tonight I left starboard wing outside where it dropped to 64F when working on port wing. When brought it back in, could feel a depression forward and aft of the spar. Not too much but could in fact could feel it. When it warmed back up to ~ 75F inside tent, depression was pretty much gone. Perhaps I should fill different parts of the aeroplane at different temperatures so when I want to play show and tell I can favor the part of plane that is flat and true for a given temperature! Ron Parigoris Visit - www.EuropaOwners.org ------------------------------------------------------------------------------------- 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.