The U.S. Navy conducted a full power demonstration of a Riverine Command Boat (experimental) (RCB-X) powered by alternative fuel, Oct. 22, at Naval Station Norfolk, Va. Testing and evaluation of alternative fuels from the 49-ft. RCB-X boat supports the Secretary of the Navy's efforts to reduce the fleet's reliance on fossil fuels and is part of a series of progressively complex tests and evaluations scheduled through 2012. These exhibitions will culminate in 2012 with a Green Strike Group of U.S.