http://sls.iykpqm7jiradoeezzkhj7c4b33g4hbgfwelht2evxxeicbpjy44c7ead.onion/technologies/drones-and-robots
Drones and robots vary greatly in size, shape, and movement. They include tiny quadrotors, small treaded vehicles, robotic dogs, large rolling cylinders, and large fixed-wing aircraft. Drones in flight are harder to spot than airplane or helicopter surveillance and can sometimes stay in the sky for a longer duration.