HII debuts Proteus USV testbed 24 May 2021 by Richard Scott Huntington Ingalls Industries has unveiled its Proteus 2.0 unmanned surface vehicle (USV) and completed initial demonstrations of its autonomous capabilities. Outfitted with Sea Machines Robotics’ SM300 autonomy system, the 8.2 m-long craft completed a successful demonstration on 14 May off the coast of Panama City, Florida. The Proteus USV features Sea Machines Robotics’ SM300 autonomy system. (HII) For the demonstration, the Proteus USV was equipped with commercial perception sensors, including GPS, an automatic identification system, a depth transducer, a radar and a camera enabling a 360˚ field of view. HII deployed a separate 51 ft-long dive boat during the demonstration to illustrate SM300 system’s off-the-shelf solution including its obstacle avoidance capability and adherence to the International Regulations for Preventing Collisions at Sea (COLREGS).