Dubbed the'Sea Hunter', the 132ft ship is designed to travel thousands of miles out at sea without a single crew member on board. Now, the 132-foot Sea Hunter trimaran, is set to get an upgrade - turning it into a stealthy killing machine. The Navy has revealed plans to expand the mission portfolio of the craft so that it can conduct surface warfare missions, fire weapons and launch electronic attacks. The 132ft-long (40-metre) unarmed prototype, dubbed Sea Hunter, is the naval equivalent of Google's self-driving car, designed to cruise on the ocean's surface without a crew. The ship's projected $20 million (£14.2 million) price tag and its $20,000 (£14,300) daily operating cost make it relatively inexpensive for the navy The 132ft-long (40-metre) unarmed prototype, dubbed Sea Hunter, is the naval equivalent of Google's self-driving car, designed to cruise on the ocean's surface without a crew.

SAN DIEGO – The U.S. military is beginning tests of the world's largest unmanned surface vessel -- a self-driving, 132-foot (40-meter) ship designed to travel thousands of miles (kilometers) at sea without a single crew member on board. The so-called Sea Hunter has the potential to revolutionize not only the military's maritime operations but commercial shipping, according to military officials. Military officials showed off the ship in San Diego on Monday before it set sail to a nearby naval base where the testing will be conducted. The sleek, futuristic-looking steel-gray vessel was docked at a maritime terminal in the heart of San Diego's shipbuilding district, where TV crews filmed the robotic craft. No media access was given to the inside of the vessel.

The military is starting tests on the world's largest unmanned surface vessel -- a self-driving, 132-foot ship designed to travel thousands of miles out at sea without a single crew member on board. The so-called "Sea Hunter" has the potential to revolutionize not only the military's maritime operations but commercial shipping, according to military officials. Military officials showed off the ship in San Diego on Monday before it set off to a nearby Naval base where the testing will be conducted. The sleek, futuristic-looking steel-gray vessel was docked at a maritime terminal in the heart of San Diego's shipbuilding district, where TV crews filmed the robotic craft. No media access was given to the inside of the vessel.

The military is launching tests on the world's largest unmanned surface vessel. Dubbed the'Sea Hunter', the 132ft ship is designed to travel thousands of miles out at sea without a single crew member on board. Experts say the vessel has the potential to revolutionise not only the military's maritime service but also commercial shipping. The 132ft-long (40-metre) unarmed prototype, dubbed Sea Hunter, is the naval equivalent of Google's self-driving car, designed to cruise on the ocean's surface without a crew. The ship's projected 20 million ( 14.2 million) price tag and its 20,000 ( 14,300) daily operating cost make it relatively inexpensive for the navy The 132ft-long (40-metre) unarmed prototype, dubbed Sea Hunter, is the naval equivalent of Google's self-driving car, designed to cruise on the ocean's surface without a crew.

The military is launching tests on the world's largest unmanned surface vessel -- a self-driving, 132-foot ship designed to travel thousands of miles out at sea without a single crew member on board. The so-called "Sea Hunter" has the potential to revolutionize not only the military's maritime service but commercial shipping -- marking the first step toward sending unmanned cargo vessels between countries, according to military officials, who showed off the ship in San Diego on Monday before it was put in the water. The Pentagon's research arm, the Defense Advanced Research Projects Agency, or DARPA, developed the ship along with Virginia-based Leidos. DARPA will test it in conjunction with the Navy over the next two years off California's coast. The tests will largely focus on its ability to react on its own to avoid collisions with seafaring traffic.

The Defense Department christened the Sea Hunter, a 132-foot robot ghost ship designed to seek out and track diesel-powered submarines across the ocean. The start of the test phase for the program on Thursday signals a new dawn for autonomous systems at sea, which, Pentagon officials say, will perform an ever-wider variety of jobs and could fundamentally change the way militaries operate on the water. The Sea Hunter is the first of a new type of ocean drone, called an Anti-submarine Warfare Continuous Trail Unmanned Vessel, or ACTUV. The goal of the program: field an autonomous ship with the range and endurance to go anywhere in the world while avoiding collisions with other ships and obeying the rules of navigation. "Current unmanned surface vessel systems and concepts are operated as close-adjuncts to conventional manned ships – they are launched and recovered from manned ships, tele-operated from manned ships, and are limited to direct support of manned ship missions. The ACTUVsystem will be a first of its kind unmanned naval vessel that is designed and sized for theater or global independent deployment," reads the program's description from 2014.

Today is christening day for DARPA's Sea Hunter, a full-scale prototype of an autonomous surface vessel that's designed to be able to launch from a pier and go out on its own for weeks or months at a time, for thousands of miles at a stretch. The 132-foot-long, diesel-powered vessel was built by U.S. defense contractor Leidos under DARPA's ACTUV program, a somewhat clunky nested acronym that stands for Anti-Submarine Warfare (ASW) Continuous Trail Unmanned Vessel. The ship, now a joint project with the U.S. Office of Naval Research, was originally conceived as a tracker of stealthy diesel-electric submarines, but it's a flexible platform. "What we've kind of realized over the course of the program is that it's a truck," program manager Scott Littlefield tells IEEE Spectrum. "It's got lots of payload capacity for a variety of different missions."