USS R-20 (SS-97)
|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|
|Struck:||1 October 1945|
|Fate:||Sold for scrap, 13 March 1946|
|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)|
|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 in (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. Her 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.
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 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.
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.
- This article incorporates text from the public domain Dictionary of American Naval Fighting Ships. The entry can be found here.
- Photo gallery of USS R-20 at NavSource Naval History