Proteus

Huntington Ingalls Industries (HII) has announced the successful completion of endurance testing for the dual-mode manned or unmanned underwater vehicle (UUV) Proteus, developed by the company’s Undersea Solutions Group (USG) subsidiary and Battelle.

The simulated unmanned mission was conducted over a period of 30 days in a test tank at USG’s facility in Panama City, Florida, US.

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The testing demonstrated the vessel’s reliability and ability to perform long-duration missions meant for the US Navy’s future unmanned undersea vehicles.

“This test helps provide reliability data and a technical foundation for development of a new generation of long-endurance UUVs.”

During testing, navigational and depth data were relayed to Proteus’ autonomy and vehicle control systems by computers in a van beside the test tank to simulate the vehicle running a mission in open water.

All the systems necessary for an autonomous mission were reported being operational and responded to commands.

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Proteus simulated travelling 2,412nm and ran submerged for 720 hours while staging a full range of simulated mission behaviours.

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USG operations vice-president Ross Lindman said: "This test helps provide reliability data and a technical foundation for development of a new generation of long-endurance UUVs to support the US Navy."

Proteus is a 200ft dual-mode underwater vehicle designed to execute larger payloads at distances of hundreds of miles in either manned or unmanned mode.

The vehicle is fitted with four cameras and a 300kHz multi-beam sonar to help the vehicle avoid collision.

It features one terabyte of network-attached storage (NAS) to record data, and can operate at a speed of 10k.

Proteus can be used for a range of missions, including payload integration and test, transporting and installing equipment on the sea floor, inspecting undersea infrastructure, and transporting divers and cargo.

Image: Proteus in the test tank during endurance testing. Photo: courtesy of Huntington Ingalls Industries, Inc.