USS S-6 (SS-111)
Encyclopedia
USS S-6 (SS-111) was a second-group ( or "Government") S-class
United States S class submarine
The United States' S-class submarines, often simply called S-boats , were the first class of submarines built to a United States Navy design....

 submarine
Submarine
A submarine is a watercraft capable of independent operation below the surface of the water. It differs from a submersible, which has more limited underwater capability...

 of the United States Navy
United States Navy
The United States Navy is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U.S. Navy is the largest in the world; its battle fleet tonnage is greater than that of the next 13 largest navies combined. The U.S...

. Her keel was laid down on 29 January 1918 by the Portsmouth Navy Yard. She was launched
Ship naming and launching
The ceremonies involved in naming and launching naval ships are based in traditions thousands of years old.-Methods of launch:There are three principal methods of conveying a new ship from building site to water, only two of which are called "launching." The oldest, most familiar, and most widely...

 on 23 December 1919 sponsored by Ms. Eleanor Westcott; and commissioned
Ship commissioning
Ship commissioning is the act or ceremony of placing a ship in active service, and may be regarded as a particular application of the general concepts and practices of project commissioning. The term is most commonly applied to the placing of a warship in active duty with its country's military...

 on 17 May 1920 with Lieutenant Commander
Lieutenant commander (United States)
Lieutenant commander is a mid-ranking officer rank in the United States Navy, the United States Coast Guard, the United States Public Health Service Commissioned Corps, and the National Oceanic and Atmospheric Administration Commissioned Corps, with the pay grade of O-4 and NATO rank code OF-3...

 George B. Junkin in command.

Following trials and outfitting, S-6 departed New London, Connecticut
New London, Connecticut
New London is a seaport city and a port of entry on the northeast coast of the United States.It is located at the mouth of the Thames River in New London County, southeastern Connecticut....

 on 18 November 1920, and joined other S-boats of Submarine Divisions 12 and 18 (SubDivs 12 and 18) for what was to be — at that time — the longest cruise for American submarines on record. The trip — begun with a rendezvous off Portsmouth, New Hampshire
Portsmouth, New Hampshire
Portsmouth is a city in Rockingham County, New Hampshire in the United States. It is the largest city but only the fourth-largest community in the county, with a population of 21,233 at the 2010 census...

 — took them through the Panama Canal
Panama Canal
The Panama Canal is a ship canal in Panama that joins the Atlantic Ocean and the Pacific Ocean and is a key conduit for international maritime trade. Built from 1904 to 1914, the canal has seen annual traffic rise from about 1,000 ships early on to 14,702 vessels measuring a total of 309.6...

, to Pearl Harbor
Pearl Harbor
Pearl Harbor, known to Hawaiians as Puuloa, is a lagoon harbor on the island of Oahu, Hawaii, west of Honolulu. Much of the harbor and surrounding lands is a United States Navy deep-water naval base. It is also the headquarters of the U.S. Pacific Fleet...

 and then to Cavite
Cavite
Cavite is a province of the Philippines located on the southern shores of Manila Bay in the CALABARZON region in Luzon, just 30 kilometers south of Manila. Cavite is surrounded by Laguna to the east, Metro Manila to the northeast, and Batangas to the south...

, Luzon
Luzon
Luzon is the largest island in the Philippines. It is located in the northernmost region of the archipelago, and is also the name for one of the three primary island groups in the country centered on the Island of Luzon...

, Philippine Islands. Other submarines had operated out of Cavite prior to this, but they had been transported there on the decks of collier
Collier (ship type)
Collier is a historical term used to describe a bulk cargo ship designed to carry coal, especially for naval use by coal-fired warships. In the late 18th century a number of wooden-hulled sailing colliers gained fame after being adapted for use in voyages of exploration in the South Pacific, for...

s.

The two submarine divisions operated from Cavite over the next three years, from 1 December 1921-29 October 1924. During that time, they frequently visited the Chinese
China
Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...

 ports at Shanghai
Shanghai
Shanghai is the largest city by population in China and the largest city proper in the world. It is one of the four province-level municipalities in the People's Republic of China, with a total population of over 23 million as of 2010...

, Chefoo, Chinwangtao, Tsingtao
Qingdao
' also known in the West by its postal map spelling Tsingtao, is a major city with a population of over 8.715 million in eastern Shandong province, Eastern China. Its built up area, made of 7 urban districts plus Jimo city, is home to about 4,346,000 inhabitants in 2010.It borders Yantai to the...

, Amoy
Amoy
Xiamen, or Amoy, is a city on the southeast coast of China.Amoy may also refer to:*Amoy dialect, a dialect of the Hokkien lects, which are part of the Southern Min group of Chinese languages...

, and Woosung
Wusong
Wusong,Chinese: s , t , p Wúsōng. formerly Woosung, was a port town located fourteen miles downriver from Shanghai.The Battle of Woosung occurred on 16 June 1842 between British and Chinese forces during the First Opium War. It was the site of China's first telegraph wires and first railroad, both...

.

On 30 December, S-6 and SubDiv 12 arrived at Mare Island, California. They operated along the West Coast until 15 February 1927; in the Panama Canal
Panama Canal
The Panama Canal is a ship canal in Panama that joins the Atlantic Ocean and the Pacific Ocean and is a key conduit for international maritime trade. Built from 1904 to 1914, the canal has seen annual traffic rise from about 1,000 ships early on to 14,702 vessels measuring a total of 309.6...

 area in March-April; then returned to New London on 3 May to operate along the New England
New England
New England is a region in the northeastern corner of the United States consisting of the six states of Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, and Connecticut...

 coast. On 17 December, — another S-boat of SubDiv 12 — sank after colliding with the Coast Guard
United States Coast Guard
The United States Coast Guard is a branch of the United States Armed Forces and one of the seven U.S. uniformed services. The Coast Guard is a maritime, military, multi-mission service unique among the military branches for having a maritime law enforcement mission and a federal regulatory agency...

 cutter  off Provincetown, Massachusetts
Provincetown, Massachusetts
Provincetown is a New England town located at the extreme tip of Cape Cod in Barnstable County, Massachusetts, United States. The population was 3,431 at the 2000 census, with an estimated 2007 population of 3,174...

. S-6 then served as a training model to familiarize divers preparing to raise the sunken sub. S-4 was raised on 17 March 1928 and S-6 resumed normal operations with her division. She conducted winter maneuvers in the Panama Canal area in 1929-1930, but primarily operated out of New London until decommissioned on 10 April 1931, at Philadelphia, Pennsylvania
Philadelphia, Pennsylvania
Philadelphia is the largest city in the Commonwealth of Pennsylvania and the county seat of Philadelphia County, with which it is coterminous. The city is located in the Northeastern United States along the Delaware and Schuylkill rivers. It is the fifth-most-populous city in the United States,...

. She was struck from the Naval Vessel Register
Naval Vessel Register
The Naval Vessel Register is the official inventory of ships and service craft in custody of or titled by the United States Navy. It contains information on ships and service craft that make up the official inventory of the Navy from the time a vessel is authorized through its life cycle and...

on 25 January 1937.
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