Wisk Unveils Gen Six 4-Pax eVTOL Readied For Certification Wisk Aero has unveiled the final design of their eVTOL that they have been working on and testing for the last few years. Before much of the testing has been on scaled prototypes. What they have unveiled today is the full-size four-passenger version that is expected to come to market after certification by the Federal Aviation Administration (FAA). Generation 6 represents the first-ever candidate for type certification by the FAA of an autonomous eVTOL. Yes, it is autonomous. Below is a look at the final 4-passenger design.