USS ''L-11'' (SS-51) was an L-class submarine of the

United States Navy The United States Navy (USN) is the naval warfare, maritime military branch, service branch of the United States Department of Defense. It is the world's most powerful navy with the largest Displacement (ship), displacement, at 4.5 millio ...

Description

The L-class boats designed by

Electric Boat An electric boat is a powered watercraft driven by electric motors, which are powered by either on-board battery packs, solar panels or generators. While a significant majority of water vessels are powered by diesel engines, with sail power ...

(''L-1'' to ''L-4'' and ''L-9'' to ''L-11'') were built to slightly different specifications from the other L boats, which were designed by

Lake Torpedo Boat The Lake Torpedo Boat Company of Bridgeport, Connecticut, was an early builder of submarines for the United States Navy in the early 20th century. History Founded by Simon Lake in 1912, the company was located at the east end of Seaview Avenue i ...

, and are sometimes considered a separate class. The Electric Boat submarines had a length of

overall Overalls or bib-and-brace overalls, also called dungarees in British English, are a type of garment usually used as protective clothing when working. The garments are commonly referred to as a "pair of overalls" by analogy with "pair of trousers ...

, a

beam Beam may refer to: Streams of particles or energy *Light beam, or beam of light, a directional projection of light energy **Laser beam *Radio beam *Particle beam, a stream of charged or neutral particles **Charged particle beam, a spatially lo ...

of and a mean

draft Draft, the draft, or draught may refer to: Watercraft dimensions * Draft (hull), the distance from waterline to keel of a vessel * Draft (sail), degree of curvature in a sail * Air draft, distance from waterline to the highest point on a v ...

of . They displaced on the surface and submerged. The L-class submarines had a crew of 28 officers and enlisted men. They had a diving depth of .Friedman, p. 307 For surface running, the Electric Boat submarines were powered by two

diesel engine The diesel engine, named after the German engineer Rudolf Diesel, is an internal combustion engine in which Combustion, ignition of diesel fuel is caused by the elevated temperature of the air in the cylinder due to Mechanics, mechanical Compr ...

s, each driving one

propeller shaft A drive shaft, driveshaft, driving shaft, tailshaft (Australian English), propeller shaft (prop shaft), or Cardan shaft (after Girolamo Cardano) is a component for transmitting mechanical power, torque, and rotation, usually used to connect o ...

. When submerged each propeller was driven by a

electric motor An electric motor is a machine that converts electrical energy into mechanical energy. Most electric motors operate through the interaction between the motor's magnetic field and electric current in a electromagnetic coil, wire winding to gene ...

. They could reach on the surface and underwater. On the surface, the boats had a range of at and at submerged.Gardiner & Gray, p. 129 The boats were armed with four 18 inch (450 mm)

torpedo tube A torpedo tube is a cylindrical device for launching torpedoes. There are two main types of torpedo tube: underwater tubes fitted to submarines and some surface ships, and deck-mounted units (also referred to as torpedo launchers) installed aboa ...

s in the bow. They carried four reloads, for a total of eight torpedoes. The Electric Boat submarines were initially not fitted with a

deck gun A deck gun is a type of naval artillery mounted on the deck of a submarine. Most submarine deck guns were open, with or without a shield; however, a few larger submarines placed these guns in a turret. The main deck gun was a dual-purpose w ...

; a single

3"/50 caliber gun The 3-inch/50-caliber gun (spoken "three-inch fifty-caliber") in United States naval gun terminology indicates the gun fired a projectile in diameter, and the barrel was 50 Caliber (artillery), calibers long (barrel length is 3 in × 50 = ). ...

on a disappearing mount was added during the war.

Construction and career

Assigned to the

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Submarine Flotilla, ''L-11'' operated along the East Coast developing new techniques of undersea warfare until April 1917. After the

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's entry into

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, submarines were needed to protect Allied shipping lanes to

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, and ''L-11'' departed

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, on 4 December to undertake the task. Following a period of patrol and repair in the

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, the submarine arrived

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in mid-February 1918 to Join Submarine Division 5 (SubDiv 5) in anti-submarine patrol off the

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. For the next nine months, she ranged shipping lanes, sighting enemy

U-boat U-boats are Submarine#Military, naval submarines operated by Germany, including during the World War I, First and Second World Wars. The term is an Anglicization#Loanwords, anglicized form of the German word , a shortening of (), though the G ...

s on three occasions. On 11 May, she made a

torpedo A modern torpedo is an underwater ranged weapon launched above or below the water surface, self-propelled towards a target, with an explosive warhead designed to detonate either on contact with or in proximity to the target. Historically, such ...

attack on an enemy submarine with inconclusive results. After the

Armistice with Germany {{Short description, none This is a list of armistices signed by the German Empire (1871–1918) or Nazi Germany (1933–1945). An armistice is a temporary agreement to cease hostilities. The period of an armistice may be used to negotiate a peace t ...

, ''L-11'' operated out of the

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, until 3 January 1919 when she sailed for the

. Arriving

Philadelphia, Pennsylvania Philadelphia ( ), colloquially referred to as Philly, is the List of municipalities in Pennsylvania, most populous city in the U.S. state of Pennsylvania and the List of United States cities by population, sixth-most populous city in the Unit ...

, on 1 February, she operated off the East Coast for the next four years developing submarine warfare tactics. ''L-11'' decommissioned at

Hampton Roads Hampton Roads is a body of water in the United States that serves as a wide channel for the James River, James, Nansemond River, Nansemond, and Elizabeth River (Virginia), Elizabeth rivers between Old Point Comfort and Sewell's Point near whe ...

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, on 28 November 1923, and was scrapped on 28 November 1933.

Notes

References

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External links

* {{DEFAULTSORT:L-11 (SS-51) United States L-class submarines World War I submarines of the United States Ships built in Quincy, Massachusetts 1916 ships