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2h ago

HII Completes Initial Sea Trials for Virginia-Class Submarine Massachusetts

Further yard testing at Newport News Shipbuilding will precede delivery to the U.S. Navy.

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HII’s Newport News Shipbuilding division has successfully completed initial sea trials for Virginia-class attack submarine Massachusetts (SSN 798). Massachusetts spent several days at sea to test the boat’s systems and components (Photo by Ashley Cowan/HII).

Overview

  • Trials included the submarine’s first submerge and high-speed runs on the surface and underwater.
  • Testing spanned several days as Newport News Shipbuilding and U.S. Navy teams validated key systems and components.
  • Massachusetts (SSN 798) is the 25th submarine in the Virginia-class program.
  • The boat was christened in May 2023 and will be the 12th Virginia-class submarine delivered by Newport News Shipbuilding.
  • NNS President Kari Wilkinson described the first trial as an important step in proving capability for the fleet.