Hybrid electric long - endurance multirotor drones combine the best of both worlds. The hybrid electric power system allows these drones to achieve extended flight times compared to traditional battery - powered drones. They are perfect for applications that require long - term aerial surveillance, such as wildlife monitoring in large nature reserves or border patrol. 

The electric motor provides quiet and efficient flight, while the internal combustion engine kicks in when more power is needed, especially during takeoff and when carrying heavier payloads. With their long - endurance capabilities, they can cover large areas without the need for frequent recharging or refueling stops. These drones are also equipped with advanced communication systems to ensure seamless data transmission during their extended flights.