Flying from sunrise to sunset, the Skyfront Perimeter 8 gasoline-electric hybrid drone flew 205 miles, setting the record for the longest drone multirotor flight ever recorded. The flight demonstrated the potential to make industrial applications more efficient, by eliminating the requirement for frequent stops to charge and refuel.
(Sources: https://dronelife.com/2021/03/18/skyfront-gas-electric-hybrid-flies-205-miles-for-longest-drone-multirotor-flight-on-record/, https://www.suasnews.com/2021/03/silicon-valley-skyfront-drone-flies-sunrise-to-sunset-for-new-flight-record/)