Keywords: US Navy 101022-N-9565D-181 Sailors assigned to Riverine Group 1 stand their post aboard Riverine Command Boat (Experimental) (RCB-X).jpg en NORFOLK Oct 22 2010 Sailors assigned to Riverine Group 1 stand their post aboard Riverine Command Boat Experimental RCB-X as the boat conducts test runs at Naval Station Norfolk The RCB-X is powered by an alternative fuel blend of 50 percent algae-based and 50 percent NATO F-76 fuels to support the Secretary of the Navy's efforts to reduce total energy consumption on naval ships U S Navy photo by Mass Communication Specialist 2nd Class Clifford L H Davis/Released 2010-10-22 101022-N-9565D-181 Navy http //www navy mil/view_image asp id 93227 U S Navy photo by Mass Communication Specialist 2nd Class Clifford L H Davis PD-USGov-Military-Navy Naval Station Norfolk Riverine command boat |