Researchers from the Johns Hopkins Applied Physics Laboratory unveiled a new type of drone called CRACUNS, which stands for “Corrosion Resistant Aerial Covert Unmanned Nautical System.” 

It’s a new class of water-resistant drone prototypes that can be used for either naval or aerial combat, according to Popular Science. Parts of the robot were 3D-printed to enable a chassis to survive underwater, whereas other aspects of the machine were covered in a commercial sealant to prevent the engines from damage while a CRACUN unit is submerged. 

Tests had shown the drones were able to last two months underwater. A flick of a switch launched the drone from the depths showing that it was able to fly without any damage from this period. 

Watch the video below to see the CRACUN in action.