dunno about Navy ship powerplants but John Deere uses WinCE on the large combines for nav and Paccar uses it for the engine controls of its trucks (Kenworth, Peterbilt).
The article states that Northrop Grumman is the shipbuilder. That is true. However, NG bought Avondale shipyard (near New Orleans) after Katrina. NG, until recently, owned Newport News Shipbuilding here in VA where they build the aircraft carriers and subs. The Navy doesn’t get lemons from NN. Maybe it’s something to do with NOLA?