The SR-Endurance 11.0 is a high-endurance, long-range Uncrewed Surface Vehicle (USV) suited for coastal marine survey, metocean studies, and passive acoustic monitoring. The USV’s significant payload capacity (900 kg when fully fueled) makes it ideal for the launch and recovery of an ancillary asset, such as a towed body or ROV, from the onboard autonomous winch. With operational capacity for remote missions of up to 30 days, the hybrid diesel-electric propulsion SR-Endurance 11.0, among other applications, can be used as a platform for sensor test and evaluation, and as a position and data relay to submerged assets, like an AUV or seafloor node, thanks to its state-of-the-art communications system.