Unmanned underwater vehicle

Unmanned underwater vehicles (UUV), also known as uncrewed underwater vehicles and underwater drones,^[1] are submersible vehicles that can operate underwater without a human occupant. These vehicles may be divided into two categories: remotely operated underwater vehicles (ROUVs) and autonomous underwater vehicles (AUVs). ROUVs are remotely controlled by a human operator. AUVs are automated and operate independently of direct human input.