I would guess extensive testing of their prototype drone proved very reliable. Otherwise, I don’t think Eviation would have ever never gone forward.
Btw, according to Eviation their Alice commuter jet flies in 2019.
“”After winning acclaim last October at a Wall Street Journal-branded global technology conference in Laguna Beach, California, Eviation received what Bar-Yohay calls a tsunami of interest and investment. He expects the full-size Alice to be test-flownwith a pilot onboardin 2019.””
https://www.airspacemag.com/flight-today/electricity-in-the-air-180969510/
Why are they calling it a jet?
Btw, according to Eviation their Alice commuter jet flies in 2019.
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How long will it take for the FAA to certify it for commercial service?
Have they applied to the FAA for a type certificate yet or had any discussions with them?