The 2011 Opener demonstrator in the foreground (with the more advanced Opener BlackFly V3 electric VTOL aircraft in the background) on display at EAA AirVenture. The 2011 aircraft was originally known as the SkyKar Rebel. For more information, see http://evtol.news/aircraft/opener-blackfly. Photo for VFS by Kenneth I Swartz, July 23, 2018. CC-BY-SA 4.0.