University of Southampton engineers recently launched a 3D-printed unmanned aerial vehicle from a Royal Navy warship to show the potential use of lightweight drones during sea missions.
The 3D drone weighed 3kg and had a wing-span of 1.5 meters. It was created on a 3D printer in four parts and was assembled without the use of any tools.
The drone flew 500 meters before landing on a beach, using a pre-programmed route. Pretty amazing.