DARPA Releases First Official Video of NOMARS USX-1 Defiant USV
On July 18, 2025, Defense Advanced Research Projects Agency (DARPA) released the first official footage of No Manning Required Ship (NOMARS) USX-1 Defiant unmanned surface vessel
On July 18, 2025, Defense Advanced Research Projects Agency (DARPA) released the first official footage of No Manning Required Ship (NOMARS) USX-1 Defiant unmanned surface vessel
FarSounder announced that, through Serco, Inc., its Argos 3D Forward Looking Sonar (FLS) is included in the navigation system on the Defense Advanced Research Projects
With a price tag approaching $1.1 billion to $1.2 billion dollars each for the USS Constellation (FFG-62) frigate, Naval News asked RAND and CSIS if
NOMARS envisions a cost-effective USV concept for the U.S. Navy through a design philosophy that excludes all crewed features. Serco launched the Defense Advanced Research
The DARPA No Manning Required Ship (NOMARS) program recently completed a successful first test of at-sea refueling designed for use with the programโs Defiant unmanned surface vessel (USV).
On March 27, 2024, Caterpillar Marine announced the successful completion of key milestones with Serco Inc., a provider of professional, technology, engineering, and management services, to advance the use of autonomous vessels for naval applications.
An industry team led by Serco is continuing to progress detail design of a highly autonomous experimental uncrewed surface craft ahead of beginning prototype construction later this year.

We inquired to DARPA for updates on two of its programs, the Sea Train project and the No Manning Required Ship (NOMARS). Both are Unmanned Surface Vessel (USV) programs…
L3Harris Technologies has been selected to design an autonomous surface ship concept for the U.S. Defense Advanced Research Projects Agency (DARPA) to demonstrate the reliability and feasibility of an unmanned ship performing lengthy missions.