4 ms·
Quadcopter "drones" are much less efficient than winged plane "drones". Additionally, they have the large surface area of the wings to collect more solar energy
by lgats 7y ago
Quadcopter "drones" are much less efficient than winged plane "drones". Additionally, they have the large surface area of the wings to collect more solar energy.
Though the image does show a consumer quadcopter device...
- Gravityloss 7y agoYeah the Airbus Zephyr solar powered drone was up for 25 days.