USS N-7

	USS N-7 underway in harbor, c. 1918-22
History
United States
Name	N-7
Builder	Lake Torpedo Boat Company, Bridgeport, Connecticut
Cost	$463,896.47 (hull and machinery)
Laid down	20 April 1915
Launched	19 May 1917
Sponsored by	Mrs. Anne Miller
Commissioned	15 June 1918
Decommissioned	7 February 1922
Identification	Hull symbol: SS-59 (17 July 1920); Call sign: NZK; ;
Fate	Sold for scrap, 5 June 1922
General characteristics
Class & type	N-class submarine
Displacement	331 long tons (336 t) surfaced; 385 long tons (391 t) submerged;
Length	155 ft 3 in (47.32 m)
Beam	14 feet 6 inches (4.42 m)
Draft	12 ft 4 in (3.76 m)
Installed power	600 bhp (450 kW) diesel; 300 hp (220 kW) electric;
Propulsion	2 × Busch-Sulzer diesel engines; 2 × Diehl electric motors; 2 × 60-cell batteries; 2 × Propellers;
Speed	13 kn surfaced; 11 kn submerged;
Test depth	200 ft
Complement	3 officers; 26 enlisted;
Armament	4 × 18-inch bow torpedo tubes, 8 torpedoes

USS N-7 (SS-59), also known as "Submarine No. 59", was an N-class coastal submarine of the United States Navy commissioned during WWI. She spent the war patrolling off the coast of New England, and was decommissioned after less than four years in service.