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E-Racer Blended Winglet and Interference Drag CFD Analysis

After nearly a year of work this is likely the most labor intensive video I have made. Today I answer a complicated question about airplane winglets, specifically those on Shirl Diskey's E-Racer design. By running several of versions of the plane's wing through a computational fluid dynamics program and building off of a 2007 study on an E-Racer modified with a 9 inch radius winglet curve, we can see how much different levels of curvature affect cruise performance. Sources and additional resources: Marc Zeitlin’s 2007 Oshkosh presentation: http://www.cozybuilders.org/Oshkosh_P... Plane&Pilot article on experimental aircraft: https://www.planeandpilotmag.com/owne... EAA article about Burt Rutan’s VariEze: https://www.eaa.org/eaa-museum/museum... NASA resource on winglet history: https://www.nasa.gov/centers/dryden/a... Boldmethod article on canard aircraft: https://www.boldmethod.com/learn-to-f... Aerodynamics for Naval Aviators https://www.faa.gov/regulations_polic... Real Engineering video on winglets:    • Winglets - How Do They Work? (Feat. W...   Boldmethod article on interference drag: https://www.boldmethod.com/learn-to-f... Helpful FreeCAD, OpenFOAM, and Paraview tutorials:    • FreeCAD CFD- External Flow Analysis E...      • How to calculate aerodynamic forces w...   Videos ERacer flyby:    • ERacer Fly by,  Rough River fly In 2017   ERacer gear test:    • Eracer N382RB Gear Test.AVI   VariEze flight footage:    • VARI EZE flight in AUSTRIA - time flies   Long EZ footage:    • Long Ez N610TE - First Flight   and    • Weirdest Aircraft I’ve ever flown - L...   ERacer takeoff:    • ERacer Aircraft Takeoff   NASA 707:    • KC-135A Winglet Test Flight   Wind tunnel:    • NASA Tests Boeing Aircraft Tail in Wo...   Long EZ landing:    • Long ez N82MT missed approach & landing   Long EZ stall:    • Long ez 82MT Stall   Long EZ wing:    • Fun Day in the Stagger EZ   Pictures ERacer Flying: https://www.facebook.com/photo/?fbid=... Embraer Praetor Winglet: https://www.aopa.org/news-and-media/a... Burt Rutan: https://www.burtrutan.com/home/biogra... VariEze: https://www.kitplanes.com/flight-revi... Richard Whitcomb: https://www.nytimes.com/2009/10/26/us... ERacer Original Wing: https://www.facebook.com/photo/?fbid=... Flight simulator footage: Kerbal Space Program