High Quality Content by WIKIPEDIA articles! Sea Fighter (FSF-1) is an experimental littoral combat ship under development (2005-2008) by the United States Navy. Its hull is of a SWATH (Small Waterplane Area Twin Hull) design, providing exceptional stability, even in high seas. The ship can operate in both blue and littoral waters. For power, it can use either its dual gas turbine engines for speed or its dual diesel engines for efficient cruising. It can be easily reconfigured through the use of interchangeable mission modules. Helicopters can land and launch on its deck.