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Unmanned Systems

DARPA Tests Refueling At Sea With NOMARS USV

Rich Abott By
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DARPA Tests Refueling At Sea With NOMARS USV
The USV Mariner (right) deployed a refueling probe towards the USV Ranger (left) in the 2024 first test of fueling at sea (FAS) without any human interaction required on the part of the receiving vessel as a test for the DARPA’s NOMARS program. Personnel aboard the Ranger were observers only. (Photo: DARPA)

The Defense Advanced Research Projects Agency (DARPA) recently completed the successful initial test of at-sea refueling for unmanned surface vessels (USVs) as part of its No Manning Required Ship (NOMARS) program. A Dec. 19 DARPA release said this refueling is designed to be used with the NOMARS USV Defiant, which is meant to operate autonomously for long durations at sea. The vessel is specifically designed with “no provision, allowance or expectation for humans on board.” NOMARS is an effort to…

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