US Navy approves Rolls-Royce engines for 30-day autonomous drone ship missions

The US Navy has officially certified Rolls-Royce’s mtu Series 4000 and Series 2000 engines for use in unmanned surface vessels. This certification allows these autonomous ships to operate for up to 30 days without human intervention, marking a significant advancement in naval endurance. The engines underwent rigorous 720-hour durability trials to meet the requirements set by the National Defense Authorization Act. By removing the need for onboard crews, the Navy aims to increase the operational range and safety of its unmanned fleet, which already includes platforms like the Sea Hunter. While actual mission duration will depend on factors such as fuel capacity and weather conditions, this approval provides the military with reliable, long-term propulsion options. Rolls-Royce, which already supports various unmanned aerial systems, continues to strengthen its role in providing critical power solutions for the next generation of autonomous military maritime operations.