It is widely known that the biggest challenges of drone technology are control and flight time.
However, the solution to these problems turns out to be simple: just connect drones with strong but light cables so the unmanned aerial vehicles (UAVs) get power supply from the ground. Moreover, cable makes it easier to control the drones.
They are more stable and do not lose control like the wireless ones. Another good reason to try the new drone development technology is that now it is possible to install more powerful engines, and thus carry heavier equipment.