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USS R-21 (SS-98)

USS R-21 (SS-98) starboard view.jpg
USS R-21
History
Name: USS R-21
Ordered: 29 August 1916
Builder: Lake Torpedo Boat, Bridgeport, Connecticut
Laid down: 19 April 1917
Launched: 10 July 1918
Commissioned: 17 June 1919
Decommissioned: 21 June 1924
Struck: 9 May 1930
Fate: Sold for scrap, 30 July 1930
General characteristics
Type: R class submarine
Displacement:
  • 495 long tons (503 t) surfaced
  • 598 long tons (608 t) submerged
Length: 175 ft (53 m)
Beam: 16 ft 8 in (5.08 m)
Draft: 13 ft 11 in (4.24 m)
Propulsion: Diesel-electric
Speed:
  • 14.4 knots (26.7 km/h; 16.6 mph) surfaced
  • 11 knots (20 km/h; 13 mph) submerged
Complement: 29 officers and men
Armament:

USS R-21 (SS-98) was an R-class coastal and harbor defense submarine of the United States Navy. Her keel was laid down on 19 April 1917 by the Lake Torpedo Boat Company in Bridgeport, Connecticut; 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 (R-15 through R-20). She was launched on 10 July 1918 sponsored by Mrs. Dallas C. Laizure and commissioned on 17 June 1919 with Lieutenant Commander Morris D. Gilmore in command.

Attached to Submarine Division 1, R-21 operated out of the submarine base at New London, Connecticut. She conducted diving and approach tactical training in Long Island Sound, and conducted several training cruises in the vicinity of Block Island with other units of the division. Following a recruiting cruise to New Haven, Connecticut, 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, on 21 October. She departed New London on 1 November 1919 in company with R-22, R-24, R-27, and Eagle No. 31. Proceeding via Hampton Roads, Wilmington, North Carolina, Savannah, Georgia, Key West, Florida, Havana, Cienfuegos, and Guantanamo Bay, Cuba; and Kingston, Jamaica, she arrived at Coco Solo, Panama Canal Zone, on 11 December.


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