Interesting Engineering on MSN11d
New US spy drone can fly at 15,000 feet for 14 hours, pack 30-pound payload
The drone is optimized to deliver wide area surveillance, day/night full-motion video, communications relay, signals ...
Hackaday7y
Russian Drone Can Lift 142 Phantom 3 Drones
Largest submarine ... the SKYF drone is a nice piece of aeronautical engineering. Quad-copter style drones provide lift by brute force, and are typically plagued with low lift capacities and ...