USS R-20

	USS R-20, possibly in the Thames River near New London, Connecticut, sometime between April and June 1941.
History
United States
Name	USS R-20
Ordered	29 August 1916
Builder	Union Iron Works, San Francisco, California
Laid down	4 June 1917
Launched	21 January 1918
Commissioned	26 October 1918
Decommissioned	15 May 1931
Recommissioned	22 January 1941
Decommissioned	27 September 1945
Stricken	1 October 1945
Fate	Sold for scrap, 13 March 1946
General characteristics
Type	R class submarine
Displacement	569 long tons (578 t) surfaced; 680 long tons (691 t) submerged;
Length	186 ft 2 in (56.74 m)
Beam	18 ft (5.5 m)
Draft	14 ft 6 in (4.42 m)
Propulsion	Diesel-electric
Speed	13.5 knots (25.0 km/h; 15.5 mph) surfaced; 10.5 knots (19.4 km/h; 12.1 mph) submerged;
Complement	29 officers and men
Armament	4 × 21 inch (533 mm) torpedo tubes; 1 × 3"/50 caliber gun;

USS R-20 (SS-97) was an R-class coastal and harbor defense submarine of the United States Navy.

Construction and commissioning

R-20′s keel was laid down on 4 June 1917 by the Union Iron Works in San Francisco, California. She was launched on 21 January 1918, sponsored by Mrs. Arnold Foster, and commissioned on 26 October 1918 with Lieutenant Commander Alfred E. Montgomery in command.

Service history

1918–1931

Fitted out at San Pedro, California, R-20 remained off southern California operating between San Pedro and San Diego, California, until March 1919. She then moved to San Francisco, California; underwent overhaul, and on 17 June got underway for Hawaii. She arrived at Pearl Harbor's Naval Submarine Base Pearl Harbor on 25 June.

Given hull classification symbol SS-97 in July 1920, she served with the fleet training submarine personnel and assisting in the development of submarine equipment and tactics for over a decade. On 12 December 1930, she departed Pearl Harbor and headed for Philadelphia, Pennsylvania, and inactivation. She arrived at Philadelphia on 9 February 1931; decommissioned on 15 May; and was berthed at League Island.

1941–1946

R-20 recommissioned on 22 January 1941. In April she shifted to New London, Connecticut. There she trained personnel and conducted patrols until June. She then moved south to Key West, Florida, arriving on 22 June to spend the remainder of her career as a training ship.

R-20 decommissioned at Key West on 27 September 1945 and was struck from the Naval Vessel Register the following month. On 13 March 1946, she was sold to Macey O. Scott of Miami, Florida.

References

This article incorporates text from the public domain Dictionary of American Naval Fighting Ships. The entry can be found here.

External links

Photo gallery of USS R-20 at NavSource Naval History