powered engines and motors in the Cavite Navy Yard shop readying the subs for a 48-hour shake down cruise. The first tour of duty began with sealed orders at 1900 hours, guarding Manila Bay's Naval Base Manila, in the event hostilities broke out with Japan. Orders were to sink any Japanese war vessel that came into sight, although none did. 1914: B-3 awarded the "Battle Efficiency Pennant" for the best operating submarine in the US fleet, C.O. Ensign C.Q. Wright. Decommissioned at Cavite on 25 July 1921, B-3 was subsequently used as a target. See also USS B-1 USS B-2 Notes References External links United States B-class submarines World War I submarines of the United States Ships sunk as targets Shipwrecks in Manila Bay Ships built in Quincy, Massachusetts 1907 ships Maritime incidents in 1922