USS ''S-15'' (SS-120) was a second-group (''S-3'' or "Government") ''S''-class submarine 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 13 December 1917 by the

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 ...

Company in Bridgeport, Connecticut. She was launched on 8 March 1920 sponsored by Mrs.

Simon Lake Simon Lake (September 4, 1866 – June 23, 1945) was a Quaker American mechanical engineer and naval architect who obtained over two hundred patents for advances in naval design and competed with John Philip Holland to build the first submarines f ...

, and commissioned on 15 January 1921.

Pre-war service

Attached to SubDiv 18, ''S-15'' departed

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 decade ...

, on 31 May 1921, and sailed 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 condui ...

California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the m ...

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 state ...

, and

Guam Guam (; ch, Guåhan ) is an organized, unincorporated territory of the United States in the Micronesia subregion of the western Pacific Ocean. It is the westernmost point and territory of the United States (reckoned from the geographic cent ...

to the

Philippines 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 ...

. She arrived at

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 ...

, on 1 December. In 1922, she sailed from Cavite on 11 October, visited Hong Kong from 14 October to 28 October, and returned to Cavite on 1 November. Sailing from

Manila Manila ( , ; fil, Maynila, ), officially the City of Manila ( fil, Lungsod ng Maynila, ), is the capital of the Philippines, and its second-most populous city. It is highly urbanized and, as of 2019, was the world's most densely populate ...

on 15 May 1923, ''S-15'' visited

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 flowin ...

Yantai 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 ...

, and

Qinhuangdao 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 ...

before returning via

Wusong Wusong, formerly romanized as Woosung, is a subdistrict of Baoshan in northern Shanghai. Prior to the city's expansion, it was a separate port town located down the Huangpu River from Shanghai's urban core. Name Wusong is named for the Wus ...

and

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' ...

on 11 September. In the summer of 1924, she again visited China and returned to

Olongapo Olongapo, officially the City of Olongapo ( fil, Lungsod ng Olongapo; ilo, Siudad ti Olongapo; xsb, Siyodad nin Olongapo), is a 1st class highly urbanized city in the Central Luzon region of the Philippines. Located in the province of Zambales ...

on 23 September. Departing Cavite on 29 October, she arrived at Mare Island Naval Shipyard,

, on 30 December. Remaining at Mare Island in 1925 and 1926, she operated along the west coast through 1927. From February 1928 into 1935, ''S-15'' served in the Panama Canal area, although she visited

Baltimore, Maryland Baltimore ( , locally: or ) is the List of municipalities in Maryland, most populous city in the U.S. state of Maryland, fourth most populous city in the Mid-Atlantic (United States), Mid-Atlantic, and List of United States cities by popula ...

, from 15 May to 5 June 1933. She departed

Coco Solo Coco Solo was a United States Navy submarine base and naval air station, active from 1918 to the 1960s. History The submarine base at Coco Solo was established May 6, 1918. The site corresponds with modern-day Cativá in Panama. It was on th ...

on 11 January 1935 for

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 ...

, where she decommissioned on 26 April 1935.

World War II

''S-15'' was recommissioned on 3 January 1941 at Philadelphia. Following voyages to

Bermuda ) , anthem = "God Save the King" , song_type = National song , song = "Hail to Bermuda" , image_map = , map_caption = , image_map2 = , mapsize2 = , map_caption2 = , subdivision_type = Sovereign state , subdivision_name = , es ...

, she operated at

Saint Thomas, United States Virgin Islands Saint Thomas ( da, Sankt Thomas) is one of the Virgin Islands in the Caribbean Sea which, together with Saint John, Water Island, Hassel Island, and Saint Croix, form a county-equivalent and constituent district of the United States Virgin ...

, from 31 October to 9 December 1941; in the

area from January 1942 into December 1943; at Guantanamo Bay through May 1944; in the Panama Canal area from June through September; at

Trinidad Trinidad is the larger and more populous of the two major islands of Trinidad and Tobago. The island lies off the northeastern coast of Venezuela and sits on the continental shelf of South America. It is often referred to as the southernmos ...

for the rest of the year; and at Guantanamo from January into March 1945. ''S-15'' departed Guantanamo on 23 March 1945 and reported at New London for inactivation. She was decommissioned on 11 June 1946 at Philadelphia 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 4 December 1946 she was sold for scrapping to the Potomac Shipwrecking Company of

Maryland Maryland ( ) is a state in the Mid-Atlantic region of the United States. It shares borders with Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware and the Atlantic Ocean to ...

Trivia

Following the decommissioning of ''S-23'' in November 1945, ''S-15'' was the last S Class submarine in commission. Following the decommissioning of ''O-4'' in September 1945, ''S-15'' was the oldest submarine in commission in the U.S. Navy. ''S-15'' was one of the only five submarines (along with her sisters ''S-14'', ''S-16'', ''S-17'' and ''S-48'') built by the Lake Torpedo Boat Company to see service in World War II. She was last submarine built by the Lake Torpedo Boat Company in service when she was decommissioned in June 1946.

Awards

American Defense Service Medal The American Defense Service Medal was a military award of the United States Armed Forces, established by , by President Franklin D. Roosevelt, on June 28, 1941. The medal was intended to recognize those military service members who had served ...

American Campaign Medal The American Campaign Medal is a military award of the United States Armed Forces which was first created on November 6, 1942, by issued by President Franklin D. Roosevelt. The medal was intended to recognize those military members who had perfo ...

World War II Victory Medal The World War II Victory Medal is a service medal of the United States military which was established by an Act of Congress on 6 July 1945 (Public Law 135, 79th Congress) and promulgated by Section V, War Department Bulletin 12, 1945. The Wo ...

References

{{DEFAULTSORT:S-15 (SS-120) Ships built in Bridgeport, Connecticut S-15 World War II submarines of the United States 1920 ships