United States N-class submarine

United States N-class submarine
USS N-7 (SS-59)
Class overview
Builders:	Seattle Construction and Drydock Co., Seattle, Washington (N-1 to N-3) Lake Torpedo Boat Co., Bridgeport, Connecticut (N-4 to N-7)
Operators:	United States Navy
Preceded by:	AA-1 class submarine
Succeeded by:	O class submarine
Built:	1915–1917
In commission:	1917–1926
Completed:	7
Retired:	7
General characteristics
Type:	Submarine
Displacement:	N-1 to N-3 : 348 long tons (354 t) surfaced 414 long tons (421 t) submerged N-4 to N-7 : 340 long tons (345 t) surfaced 415 long tons (422 t) submerged
Length:	N-1 to N-3 : 147 ft 3 in (44.88 m) N-4 to N-7 : 155 ft (47 m)
Beam:	N-1 to N-3 : 15 ft 9 in (4.80 m) N-4 to N-7 : 14 ft 6 in (4.42 m)
Draft:	N-1 to N-3 : 12 ft 6 in (3.81 m) N-4 to N-7 : 12 ft 4 in (3.76 m)
Propulsion:	Diesel-electric
Speed:	13 knots (24 km/h; 15 mph) surfaced 11 knots (20 km/h; 13 mph) submerged
Complement:	N-1 to N-3 : 25 officers and men N-4 to N-7 : 29 officers and men
Armament:	4 × 18 in (457 mm) torpedo tubes

The United States N class submarines were a class of seven coastal defense submarines of the United States Navy.

The boats were constructed by two companies to slightly different specifications; N-1, N-2, and N-3 by the Seattle Construction and Drydock Company of Seattle, Washington, and N-4, N-5, N-6, and N-7 by the Lake Torpedo Boat Company of Bridgeport, Connecticut. The N-boats built by Lake are sometimes considered a separate class.

Commissioned during World War I, they were assigned to the 1st Naval District and patrolled the New England coast.

By 1922 the Seattle boats were assigned to the Submarine School, New London, while the Lake boats were all scrapped in that year.

Ships

• USS N-1 (SS-53)
• USS N-2 (SS-54)
• USS N-3 (SS-55)
• USS N-4 (SS-56)
• USS N-5 (SS-57)
• USS N-6 (SS-58)
• USS N-7 (SS-59)

External links

• "Through The Looking Glass : A Photo Essay of Submarines 1900-1940" - The N-boats