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Electric Hybrid Marine Technology
Battery Technology

Rolls-Royce reveals plans for electric autonomous naval vessel

Dean SlavnichBy Dean SlavnichSeptember 25, 20172 Mins Read
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Rolls-Royce has revealed plans for an electric autonomous, single-role, naval vessel with a range of 3,500 nautical miles. The vessel concept is capable of operating beyond the horizon for over 100 days, will displace 700 tons and reach speeds above 25kts. The 60m-long vessel is designed to perform a range of single-role missions, such as patrol and surveillance, mine detection or fleet screening. The initial design features a full electric propulsion system comprising two Rolls-Royce MTU 4000 Series gensets providing around 4MW electrical power to a 1.5MW propulsion drive. According to the company, permanent-magnet Azipull thrusters together with a bow-mounted tunnel thruster will make the vessel highly manoeuvrable. To reduce fuel consumption and extend operational range, an additional 3,000kWh of energy storage will facilitate efficient low-speed loiter operations, and the vessel will also be fitted with photovoltaic solar panels to generate power when the vessel is on standby. According to Benjamin Thorp, general manager for naval electrics, automation and control, “Rolls-Royce is seeing interest from major navies in autonomous, rather than remote-controlled, ships. Such ships offer a way to deliver increased operational capability, reduce the risk to crew and cut both operating and build costs. “Over the next 10 years or so, Rolls-Royce expects to see the introduction of medium-sized unmanned platforms, particularly in leading navies, as the concept of mixed manned and unmanned fleets develops.”

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