The USX-1 Defiant is a first generation NOMARS prototype that was completed in February 2025 and began sea trials in following month. It was first seen in public in March 2025 near the U.S. Navy's Naval Air Station (NAS)

Whidbey Island Whidbey Island (historical spellings Whidby, Whitbey, or Whitby) is the largest of the islands composing Island County, Washington, Island County, Washington (state), Washington, in the United States, and the largest island in Washington stat ...

. The ship has an LOA (

length overall Length overall (LOA, o/a, o.a. or oa) is the maximum length of a vessel's hull measured parallel to the waterline. This length is important while docking the ship. It is the most commonly used way of expressing the size of a ship, and is also ...

) of 180 feet with a 240 metric ton displacement.

References

Unmanned surface vehicles of the United States {{US-mil-ship-stub