Solar Spy Drone – How to Stay Airborne for a Year
![](https://spiborescopes.com/wp-content/uploads/2018/05/MILITARYDRONE-1024x724.jpg)
Consumer grade drones have a flight time measured in minutes. Some more advanced drones have flight times measured in hours, and even advanced military drones can barely be measured in days; two days for any drone, no matter the technology, would be pushing it. However, 2019 could be the year that changes all that as […]