USS R-20

USS R-20, possibly in the Thames River near New London, Connecticut, sometime between April and June 1941.
History
United States
NameUSS R-20
Ordered29 August 1916
BuilderUnion Iron Works, San Francisco, California
Laid down4 June 1917
Launched21 January 1918
Commissioned26 October 1918
Decommissioned15 May 1931
Recommissioned22 January 1941
Decommissioned27 September 1945
Stricken1 October 1945
FateSold for scrap, 13 March 1946
General characteristics
TypeR class submarine
Displacement
  • 569 long tons (578 t) surfaced
  • 680 long tons (691 t) submerged
Length186 ft 2 in (56.74 m)
Beam18 ft (5.5 m)
Draft14 ft 6 in (4.42 m)
PropulsionDiesel-electric
Speed
  • 13.5 knots (25.0 km/h; 15.5 mph) surfaced
  • 10.5 knots (19.4 km/h; 12.1 mph) submerged
Complement29 officers and men
Armament

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