---------------------------------------------------------- RV7-List Digest Archive --- Total Messages Posted Mon 01/10/11: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 09:32 AM - Airfoil Drag Video... (Matt Dralle) 2. 11:25 AM - Re: RV-List: Airfoil Drag Video... (Ralph Finch) 3. 12:11 PM - Re: Re: RV-List: Airfoil Drag Video... (Paul Pflimlin) ________________________________ Message 1 _____________________________________ Time: 09:32:17 AM PST US From: Matt Dralle Subject: RV7-List: Airfoil Drag Video... This is a REALLY interesting video about drag. I had no idea... http://www.youtube.com/watch?v=ftq8jTQ8ANE Matt - Matt Dralle RV-8 #82880 N998RV http://www.mattsrv8.com - Matt's RV-8 Construction Log http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel Status: 132+ Hours TTSN - The Fun Never Stops... ________________________________ Message 2 _____________________________________ Time: 11:25:28 AM PST US From: "Ralph Finch" Subject: RV7-List: RE: RV-List: Airfoil Drag Video... Not repeatable therefore not real useful for comparison. The guy should rotate the airfoils to minimum drag each time, otherwise, he doesn't know if they are in comparable positions. It's also a shame he didn't replace the airfoil with an equal-flow-area rectangular shape. As a result he produces confusing and misleading results, inferring that a round shape has more drag than a rectangular shape! -----Original Message----- From: owner-rv-list-server@matronics.com [mailto:owner-rv-list-server@matronics.com] On Behalf Of Matt Dralle Sent: Monday, January 10, 2011 9:29 AM rv10-list@matronics.com Subject: RV-List: Airfoil Drag Video... --> RV-List message posted by: Matt Dralle This is a REALLY interesting video about drag. I had no idea... http://www.youtube.com/watch?v=ftq8jTQ8ANE Matt - Matt Dralle RV-8 #82880 N998RV http://www.mattsrv8.com - Matt's RV-8 Construction Log http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel Status: 132+ Hours TTSN - The Fun Never Stops... ________________________________ Message 3 _____________________________________ Time: 12:11:32 PM PST US From: "Paul Pflimlin" Subject: Re: RV7-List: RE: RV-List: Airfoil Drag Video... Note: Test in fluid dynamics was state of art 68 years ago. ----- Original Message ----- From: "Ralph Finch" ; Sent: Monday, January 10, 2011 11:11 AM Subject: RV7-List: RE: RV-List: Airfoil Drag Video... > > Not repeatable therefore not real useful for comparison. The guy should > rotate the airfoils to minimum drag each time, otherwise, he doesn't know > if > they are in comparable positions. It's also a shame he didn't replace the > airfoil with an equal-flow-area rectangular shape. As a result he produces > confusing and misleading results, inferring that a round shape has more > drag > than a rectangular shape! > > -----Original Message----- > From: owner-rv-list-server@matronics.com > [mailto:owner-rv-list-server@matronics.com] On Behalf Of Matt Dralle > Sent: Monday, January 10, 2011 9:29 AM > To: rv-list@matronics.com; rv7-list@matronics.com; rv8-list@matronics.com; > rv10-list@matronics.com > Subject: RV-List: Airfoil Drag Video... > > --> RV-List message posted by: Matt Dralle > > This is a REALLY interesting video about drag. I had no idea... > > > http://www.youtube.com/watch?v=ftq8jTQ8ANE > > Matt > > - > Matt Dralle > RV-8 #82880 N998RV > http://www.mattsrv8.com - Matt's RV-8 Construction Log > http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel > Status: 132+ Hours TTSN - The Fun Never Stops... > > > ----- > No virus found in this message. > Checked by AVG - www.avg.com > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message rv7-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/RV7-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/rv7-list Browse Digests http://www.matronics.com/digest/rv7-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.