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SEA HUNTER
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[Source: U.S. Navy]
A removable operator control station is installed during the testing period "for safety and backup" until it can be determined to reliably operate on its own. Operationally, computers will drive and control the ship, with a human always observing and taking charge if necessary in a concept called Sparse Supervisory Control, meaning a person is in control, but not "joy sticking" the vessel around. It can patrol without human guidance, using optical guidance and radar to avoid hitting obstacles or other watercraft. The ship has a host of non-standard features because of its lack of crew, including an internal layout that offers enough room for maintenance to be performed but not for any people to be permanently present.
It is expected to undergo two years of testing before being placed in service with the U.S. Navy. If tests are successful, future such craft may be armed and used for anti-submarine and counter-mine duties, operating at a small fraction of the cost of operating a destroyer, $15,000-$20,000 per day compared to $700,000 per day; it could operate with Littoral Combat Ships, becoming an extension of the LCS ASW module. Deputy US Defense Secretary Robert Work said that if weapons are added to the ship, a human would always remotely make the decision to use lethal force.
Source:
Wikipedia
