The S6W reactor is a naval reactor used by the
States Navy to provide electricity generation and propulsion on warships. The S6W designation
This pressurized water reactor was
prototyped in the land-based S8G plant at Knolls Atomic Power
Laboratory in Ballston Spa, New York starting
in March 1994. It has a shaft horsepower of 45,000 shp.
The three ships of the Seawolf class
submarine were built with S6W reactors.