British submarines built by the Fore River Company, Quincy, Massachusetts, USA according to the Dutch magazine Marineblad dated 1915-1916 no. 3
An item reported the launching on 12th June by the Fore River Company, Quincy, Massachusetts, USA of the first of 10 submarines built for the British government. Range 1.500 nautical miles and a maximum surfaced speed of 15 miles.