The Littoral Surface Craft-Experimental (X-Craft), christened Sea Fighter (FSF 1), at Nichols Bros. Boat Builders in Freeland, Whidbey Island, Wash., will be used to evaluate the hydrodynamic performance, structural behavior, mission flexibility, and propulsion system of high-speed vessels. The X-Craft is a high-speed aluminum catamaran that will test a variety of technologies, which will allow the Navy to operate more effectively in littoral or near-shore waters