TeTra Aviation is giving readers of eVTOL.com a first look at footage of its Mk-5 eVTOL in flight. The Japanese company launched flight testing of its uncrewed SN2 prototype in California last month under a Special Airworthiness Certificate and Certificate of Waiver or Authorization from the Federal Aviation Administration. This will be followed by testing of a crewed SN3 prototype in Japan, with first deliveries of SN4 kits for home-building expected in late 2022. Updated specifications for all three versions are now available on the TeTra website.
Denver Police Department | Bell 407 GXi ‘AIR1’

How about Weslax hybrid fuel electric self charging Drone system to extend the range of flight ?