USS S-7 (SS-112)
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USS ''S-7'' (SS-112) was a second-group ( or "Government") ''S''-class
submarine A submarine (or sub) is a watercraft capable of independent operation underwater. It differs from a submersible, which has more limited underwater capability. The term is also sometimes used historically or colloquially to refer to remotely op ...
of the
United States Navy The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most powerful navy in the world, with the estimated tonnage ...
. Her keel was laid down on 29 January 1918 by the
Portsmouth Navy Yard The Portsmouth Naval Shipyard, often called the Portsmouth Navy Yard, is a United States Navy shipyard in Kittery on the southern boundary of Maine near the city of Portsmouth, New Hampshire. Founded in 1800, PNS is U.S. Navy's oldest continuou ...
. She was launched on 5 February 1920 sponsored by Mrs. Henry L. Wyman, and commissioned on 1 July 1920. ''S-7'' sailed from
New London, Connecticut New London is a seaport city and a port of entry on the northeast coast of the United States, located at the mouth of the Thames River in New London County, Connecticut. It was one of the world's three busiest whaling ports for several decades ...
on 18 November 1920 to rendezvous with S-boats of Submarine Division 18 (SubDiv 18) and her own division — SubDiv 12 — off
New Hampshire New Hampshire is a U.S. state, state in the New England region of the northeastern United States. It is bordered by Massachusetts to the south, Vermont to the west, Maine and the Gulf of Maine to the east, and the Canadian province of Quebec t ...
. They proceeded via the
Panama Canal The Panama Canal ( es, Canal de Panamá, link=no) is an artificial waterway in Panama that connects the Atlantic Ocean with the Pacific Ocean and divides North and South America. The canal cuts across the Isthmus of Panama and is a conduit ...
to
Hawaii Hawaii ( ; haw, Hawaii or ) is a state in the Western United States, located in the Pacific Ocean about from the U.S. mainland. It is the only U.S. state outside North America, the only state that is an archipelago, and the only stat ...
, arriving at
Pearl Harbor Pearl Harbor is an American lagoon harbor on the island of Oahu, Hawaii, west of Honolulu. It was often visited by the Naval fleet of the United States, before it was acquired from the Hawaiian Kingdom by the U.S. with the signing of the Re ...
on 15 April 1921. Departing Pearl Harbor on 3 November, they reached
Cavite Cavite, officially the Province of Cavite ( tl, Lalawigan ng Kabite; Chavacano: ''Provincia de Cavite''), is a province in the Philippines located in the Calabarzon region in Luzon. Located on the southern shores of Manila Bay and southwest ...
,
Luzon Luzon (; ) is the largest and most populous island in the Philippines. Located in the northern portion of the Philippines archipelago, it is the economic and political center of the nation, being home to the country's capital city, Manila, as ...
,
Philippine Islands The Philippines (; fil, Pilipinas, links=no), officially the Republic of the Philippines ( fil, Republika ng Pilipinas, links=no), * bik, Republika kan Filipinas * ceb, Republika sa Pilipinas * cbk, República de Filipinas * hil, Republ ...
, on 1 December. This was the longest cruise on record, at that time, for American submarines. ''S-7'' remained in the Philippines over the next three years except for annual spring visits to
Shanghai Shanghai (; , , Standard Mandarin pronunciation: ) is one of the four direct-administered municipalities of the People's Republic of China (PRC). The city is located on the southern estuary of the Yangtze River, with the Huangpu River flow ...
,
Chefoo Yantai, formerly known as Chefoo, is a coastal prefecture-level city on the Shandong Peninsula in northeastern Shandong province of People's Republic of China. Lying on the southern coast of the Bohai Strait, Yantai borders Qingdao on the ...
,
Chinwangtao Qinhuangdao (; ) is a port city on the coast of China in northern Hebei. It is administratively a prefecture-level city, about east of Beijing, on the Bohai Sea, the innermost gulf of the Yellow Sea. Its population during the 2020 national ...
,
Amoy Xiamen ( , ; ), also known as Amoy (, from Hokkien pronunciation ), is a sub-provincial city in southeastern Fujian, People's Republic of China, beside the Taiwan Strait. It is divided into six districts: Huli, Siming, Jimei, Tong'an, ...
,
Tsingtao Qingdao (, also spelled Tsingtao; , Mandarin: ) is a major city in eastern Shandong Province. The city's name in Chinese characters literally means " azure island". Located on China's Yellow Sea coast, it is a major nodal city of the One Belt ...
, and Woosung,
China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...
. She finally departed Cavite on 29 October 1924 for
Mare Island, California Mare Island (Spanish language, Spanish: ''Isla de la Yegua'') is a peninsula in the United States in the city of Vallejo, California, about northeast of San Francisco. The Napa River forms its eastern side as it enters the Carquinez Strait junc ...
, arriving there on 30 December. ''S-7'' remained at Mare Island through 1925 and operated along the West Coast in 1926, mainly at
San Francisco San Francisco (; Spanish language, Spanish for "Francis of Assisi, Saint Francis"), officially the City and County of San Francisco, is the commercial, financial, and cultural center of Northern California. The city proper is the List of Ca ...
,
San Pedro Submarine Base Naval Base San Pedro and San Pedro Submarine Base were United States Navy bases at the Port of San Pedro, California officially founded in 1919. While commissioned in 1919, the Navy started operating out of the port in 1910, by renting dock spac ...
- San Pedro, and
San Diego, California San Diego ( , ; ) is a city on the Pacific Ocean coast of Southern California located immediately adjacent to the Mexico–United States border. With a 2020 population of 1,386,932, it is the eighth most populous city in the United States ...
. Sailing from San Francisco on 17 February 1927, she operated in the Panama Canal area from March–April, arrived at New London on 3 May, and spent the rest of the year operating along the
New England New England is a region comprising six states in the Northeastern United States: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont. It is bordered by the state of New York to the west and by the Canadian provinces ...
coast. ''S-7'' served in the Panama Canal area from February–April 1928, from January–April 1929, and from January–March 1930, with the remainder of those years in the northeast. Departing New London on 22 October, ''S-7'' was decommissioned at
Philadelphia, Pennsylvania Philadelphia, often called Philly, is the largest city in the Commonwealth of Pennsylvania, the sixth-largest city in the U.S., the second-largest city in both the Northeast megalopolis and Mid-Atlantic regions after New York City. Sinc ...
, on 3 April 1931, and was struck from the
Naval Vessel Register The ''Naval Vessel Register'' (NVR) 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 t ...
on 25 January 1937.


References

{{DEFAULTSORT:S-07 (SS-112) Ships built in Kittery, Maine S-07 1920 ships