The Navy wants to develop four main classes of USVs. Three of them would be armed.
The three-meter long "X-Class" machines would be for "low-end" snooping and reconnaissance; like a robotic jet ski, with a camera attached.
The "Harbor Class" would be based on the Navy’s seven meter long rigid-hulled inflatable boats, or RIBs. These unmanned Zodiacs would be used for dropping mine countermeasures, and fending off boat-borne bad guys with a mix of "lethal and non-lethal armament."
The "Snorkeler Class" is a stealthy, seven-meter submersible that would stay in the water for up to a day at a time, tow ing mine- and sub-finding-gear — and maybe even carrying a torpedo or two.
Lastly, there’s the "Fleet Class," capable of staying in the water for 48 hours straight, and reaching speeds of up to 35 knots. The eleven-meter long USV would be used to do everything from carrying commandos to shore, jamming enemy communications, neutralizing mines, and delivering a "Harbor Class" drone. Naturally, it would carry its own guns and torpedoes, too, so it could conduct ‘high end’ surface warfare missions."
