Back to today’s briefing

Story perspectives

Massachusetts Submarine Completes Successful Initial Sea Trials

10/9/2025

50 4

Summary

Story summary

Massachusetts (SSN 798), 25th Virginia-class submarine and 12th built by Newport News Shipbuilding, completed initial sea trials on October 7, 2025.
The trials tested the submarine's systems, including its first submergence and high-speed maneuvers.
Ordered April 2014, launched February 2024, Massachusetts is expected to be commissioned Spring 2026. Block IV submarines require fewer maintenance periods and emphasize stealth and flexibility.

1 of 1

Story summary

Massachusetts (SSN 798), 25th Virginia-class submarine and 12th built by Newport News Shipbuilding, completed initial sea trials on October 7, 2025.
The trials tested the submarine's systems, including its first submergence and high-speed maneuvers.
Ordered April 2014, launched February 2024, Massachusetts is expected to be commissioned Spring 2026. Block IV submarines require fewer maintenance periods and emphasize stealth and flexibility.