Boeing's AN/BLQ-11 21ft Unmanned Underwater Vehicle (UUV)From Popular Mechanics:
Unmanned vehicles already play a major role in the U.S. Army and Air Force. Now, the Navy is developing robotic assets for underwater mapping missions, mine sweeps on the surface and reconnaissance missions in the air. But while the other military branches work with mostly land- and air-based bots, the Navy must adapt unmanned vehicles for the water. Unmanned aerial vehicles need to take off from the water and unmanned underwater vehicles should be able to return to their launching ships. The Navy plans to feature autonomous unmanned vehicles in its arsenal someday: Here's how the Navy and its contractors plan to meet the challenges of using drones with ships and submarines.
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My Comment: This is so cool.