The E-class submarines were a class of two United States Navy submarines, built by the Fore River Shipbuilding Company of Quincy, Massachusetts, under a subcontract from the Electric Boat Company. The
USS E-1, ex-Skipjack, lead ship of the class, underway, starboard side view, at the Naval Review at New York City, 4 October 1912
The United States D-class submarines were a trio of submarines built for the United States Navy in the first decade of the 20th century. All three ships served during World War I providing training fo
United States E-class submarine
…discovered; the temporary piping-and-canvas bridges were inadequate in the North Atlantic. The two E-class submarines were analogous to the preceding D-class submarine, with very similar size and displacement and the same armament. They were essentially diesel powered D-class boats, and were the first US diesel-powered…
USS Narwhal underway, c. 1909-1911