USS R-21 (SS-98) was an R-class coastal and harbor defense submarine

United States R class submarine

The R-class submarines were a class of United States Navy submarines active from 1918 until 1945. The R-boats R-21 to R-27, built by Lake Torpedo Boat, slightly smaller and faster than the others, are sometimes regarded as a separate class from R-1 to R-20 built by Fore River Shipyard and Union...

 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 19 April 1917 by the Lake Torpedo Boat

Lake Torpedo Boat

The Lake Torpedo Boat Company of Bridgeport, Connecticut was an early maker of submarines for the U.S. Navy. Founded by Simon Lake in 1912, the firm competed with John Philip Holland's Electric Boat Company until financial difficulties led to the company's demise in 1924.-External links:**...

 Company in Bridgeport, Connecticut

Bridgeport, Connecticut

Bridgeport is the most populous city in the U.S. state of Connecticut. Located in Fairfield County, the city had an estimated population of 144,229 at the 2010 United States Census and is the core of the Greater Bridgeport area...

; the R-boats built by Lake Torpedo Boat (R-21 through R-27) are sometimes considered a separate class from those built by Fore River Shipbuilding (R-1 through R-14) and Union Iron Works

Union Iron Works

Union Iron Works, located in San Francisco, California, on the southeast waterfront, was a central business within the large industrial zone of Potrero Point, for four decades at the end of the nineteenth and beginning of the twentieth centuries.-History:...

 (R-15 through R-20). 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 10 July 1918 sponsored by Mrs. Dallas C. Laizure 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 June 1919 with Lieutenant Commander Morris D. Gilmore in command.

Service history

Attached to Submarine Division 1, R-21 operated out of the submarine base at 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....

. She conducted diving and approach tactical training in Long Island Sound

Long Island Sound

Long Island Sound is an estuary of the Atlantic Ocean, located in the United States between Connecticut to the north and Long Island, New York to the south. The mouth of the Connecticut River at Old Saybrook, Connecticut, empties into the sound. On its western end the sound is bounded by the Bronx...

, and conducted several training cruises in the vicinity of Block Island

Block Island

Block Island is part of the U.S. state of Rhode Island and is located in the Atlantic Ocean approximately south of the coast of Rhode Island, east of Montauk Point on Long Island, and is separated from the Rhode Island mainland by Block Island Sound. The United States Census Bureau defines Block...

 with other units of the division. Following a recruiting cruise to New Haven, Connecticut

New Haven, Connecticut

New Haven is the second-largest city in Connecticut and the sixth-largest in New England. According to the 2010 Census, New Haven's population increased by 5.0% between 2000 and 2010, a rate higher than that of the State of Connecticut, and higher than that of the state's five largest cities, and...

, and Bridgeport, Rhode Island, from 20 August to 27 August, she returned to New London for upkeep.

R-21 continued practice dives off the coast into the fall with a call at the Torpedo Station, Newport, Rhode Island

Newport, Rhode Island

Newport is a city on Aquidneck Island in Newport County, Rhode Island, United States, about south of Providence. Known as a New England summer resort and for the famous Newport Mansions, it is the home of Salve Regina University and Naval Station Newport which houses the United States Naval War...

, on 21 October. She departed New London on 1 November 1919 in company with , , , and Eagle No. 31

Eagle class patrol craft

The Eagle class patrol craft were a set of steel ships smaller than destroyers but having a greater operational radius than the wooden-hulled, submarine chasers developed in 1917...

. Proceeding via Hampton Roads

Hampton Roads

Hampton Roads is the name for both a body of water and the Norfolk–Virginia Beach metropolitan area which surrounds it in southeastern Virginia, United States...

, Wilmington, North Carolina

Wilmington, North Carolina

Wilmington is a port city in and is the county seat of New Hanover County, North Carolina, United States. The population is 106,476 according to the 2010 Census, making it the eighth most populous city in the state of North Carolina...

, Savannah, Georgia

Savannah, Georgia

Savannah is the largest city and the county seat of Chatham County, in the U.S. state of Georgia. Established in 1733, the city of Savannah was the colonial capital of the Province of Georgia and later the first state capital of Georgia. Today Savannah is an industrial center and an important...

, Key West, Florida

Key West, Florida

Key West is a city in Monroe County, Florida, United States. The city encompasses the island of Key West, the part of Stock Island north of U.S. 1 , Sigsbee Park , Fleming Key , and Sunset Key...

, Havana

Havana

Havana is the capital city, province, major port, and leading commercial centre of Cuba. The city proper has a population of 2.1 million inhabitants, and it spans a total of — making it the largest city in the Caribbean region, and the most populous...

, Cienfuegos

Cienfuegos

Cienfuegos is a city on the southern coast of Cuba, capital of Cienfuegos Province. It is located about from Havana, and has a population of 150,000. The city is dubbed La Perla del Sur...

, and Guantanamo Bay, Cuba

Cuba

The Republic of Cuba is an island nation in the Caribbean. The nation of Cuba consists of the main island of Cuba, the Isla de la Juventud, and several archipelagos. Havana is the largest city in Cuba and the country's capital. Santiago de Cuba is the second largest city...

; and Kingston, Jamaica

Kingston, Jamaica

Kingston is the capital and largest city of Jamaica, located on the southeastern coast of the island. It faces a natural harbour protected by the Palisadoes, a long sand spit which connects the town of Port Royal and the Norman Manley International Airport to the rest of the island...

, she arrived at Coco Solo

Coco Solo

Coco Solo was a United States Navy submarine base established in 1918 on the Atlantic Ocean side of the Panama Canal Zone, near Colón, Panama....

, Panama Canal Zone

Panama Canal Zone

The Panama Canal Zone was a unorganized U.S. territory located within the Republic of Panama, consisting of the Panama Canal and an area generally extending 5 miles on each side of the centerline, but excluding Panama City and Colón, which otherwise would have been partly within the limits of...

, on 11 December.

Following several practice dives out of Coco Solo, she transited 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...

 on 27 January 1920 for drydock work at Balboa

Balboa, Panama

Balboa is a district of Panama City, located at the Pacific entrance to the Panama Canal.- History :The town of Balboa, founded by the United States during the construction of the Panama Canal, was named after Vasco Núñez de Balboa, the Spanish conquistador credited with discovering the Pacific Ocean...

. Returning to Coco Solo, R-21 continued to refine her diving, approach, and torpedo tactics through the spring and summer. During two trips to Almirante Bay, 30 March-2 April and 17-20 May, she practiced with other units of the first division.
Given hull classification symbol

Hull classification symbol

The United States Navy, United States Coast Guard, and United States National Oceanic and Atmospheric Administration use hull classification symbols to identify their ship types and each individual ship within each type...

 SS-98 in July, R-21 again transited the canal to Balboa 27 September for a month in drydock. Upon returning to Coco Solo, she was laid up for 11 months of extensive overhaul. She sailed north on 26 September 1921 via Guantanamo Bay, Key West, and New York City, arriving New London on 27 October. She sailed to 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...

, on 27 December for refitting.

A successful test dive on 26 May 1922 meant that R-21 could return to New London. Through the spring and summer months she operated out of New London and Newport.

The craft of Submarine Division 1 sailed from New London on 2 October 1922 for Coco Solo. R-21 served as flagship as the boats cruised via Hampton Roads

Hampton Roads

Hampton Roads is the name for both a body of water and the Norfolk–Virginia Beach metropolitan area which surrounds it in southeastern Virginia, United States...

 and Guantanamo. After 11 days out, R-24 developed engine trouble and was temporarily taken under tow by R-21. The Cuba-bound steamer SS Bethore rendered assistance, and R-21 arrived at Coco Solo on 27 October.

R-21 spent the rest of her active Navy days operating out of Coco Solo and undergoing repairs at Balboa. She sailed from Coco Solo for the last time 15 February 1923 in company with a tender, , and eight other submarines. Two days later R-21s engines malfunctioned and she was towed into Guantanamo by the tender. Repairs were quickly accomplished and R-21 sailed for Philadelphia, Pennsylvania

Pennsylvania

The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...

, on 22 February, arriving there via Charleston, South Carolina

Charleston, South Carolina

Charleston is the second largest city in the U.S. state of South Carolina. It was made the county seat of Charleston County in 1901 when Charleston County was founded. The city's original name was Charles Towne in 1670, and it moved to its present location from a location on the west bank of the...

, on 9 November 1923.

Decommissioned at the Philadelphia Navy Yard on 21 June 1924, R-21 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 9 May 1930 and sold for scrap 30 July 1930.