3,710 nautical miles (6,870 km) @ 6.5 knots (12 km/h),[2] 7,900 nautical miles (14,600 km) @ 6.5 knots (12.0 km/h) with fuel in main ballast tanks, 1939[2]
S-20 was rebuilt in 1924, with a larger bow similar to that of the V-1 class to improve seakeeping and blisters on the upper hull to hold more fuel, but this modification was not repeated on any other members of her class.[5][6][7]
S-20 was also used as an experimental engine test vessel, with a new high-speed geared-drive 600-horsepower (447 kW) MANdiesel engine replacing her starboard engine in 1931.[6] In 1932, this new engine was replaced by a prototype diesel-electric plant. This was a MAN-type 635-horsepower (474 kW) 16-cylinder engine running at even higher speed, driving an electrical generator built by the Electric Boat Company and designated 16VM1. Electricity produced by the generator was used to drive a high-speed electric motor geared to the shaft; there was no direct connection between the diesel engine and the shaft. Diesel-electric propulsion was then adopted for many U.S. submarines through World War II, starting with the 1932 Porpoise class; other navies did not follow suit until after World War II.[6][8][9][10]
Departing San Diego on 15 March 1934, S-20 returned to New London on 28 October 1934. From then until December 1941, she operated there as part of a test and evaluation division. During this period, she visited Guantanamo, Cuba, from February to March 1938; served in the Panama Canal area from January to March 1939; and visited Guantanamo again in February 1940. Her commanding officer from 1936 to 1937 was Lieutenant (later Captain) John P. Cromwell, a future posthumous Medal of Honor recipient for his actions aboard USS Sculpin (SS-191) in 1943. From 1941 to 1942 her commander was another future Medal of Honor recipient, Lieutenant (later Commander) Samuel David Dealey.
World War IIedit
From December 1941 to July 1945, S-20 continued to operate from New London. Her operations were off New England and often included training activities at Casco Bay, Maine.
Disposaledit
Departing New London on 2 July 1945, S-20 was decommissioned on 16 July at Philadelphia, Pennsylvania. Her name was struck from the Naval Vessel Register on 25 July. She was sold on 22 January 1946 to North American Smelting Company, Philadelphia for scrapping.
^ abcBauer, K. Jack; Roberts, Stephen S. (1991). Register of Ships of the U.S. Navy, 1775–1990: Major Combatants. Westport, Connecticut: Greenwood Press. pp. 266–267. ISBN0-313-26202-0.
first, group, holland, class, submarine, united, states, navy, commission, from, 1922, 1945, duty, both, atlantic, pacific, oceans, during, world, operated, england, england, march, 1945, historyunited, statesbuilderfore, river, shipyard, quincy, massachusetts. USS S 20 SS 125 was a first group S 1 or Holland S class submarine of the United States Navy in commission from 1922 to 1945 She saw duty in both the Atlantic and Pacific Oceans and during World War II operated off New England USS S 20 off New England on 26 March 1945 HistoryUnited StatesBuilderFore River Shipyard Quincy Massachusetts 1 Laid down15 August 1918 1 Launched9 June 1920 1 Sponsored byMiss Anne Claggett ZellCommissioned22 November 1922 1 Decommissioned16 July 1945 1 Stricken25 July 1945 1 FateSold for scrap 22 January 1946 1 General characteristics After 1924 rebuildTypeS class direct drive diesel and electric submarine S 1 type 4 Displacement930 long tons 940 t surfaced standard 2 1 094 long tons 1 112 t submerged 2 Length222 ft 5 1 2 in 67 805 m 2 Beam23 ft 11 3 4 in 7 309 m 2 Draft17 ft 4 3 8 in 5 293 m 2 Propulsion2 NELSECO 8 EB 15 8 cylinder 4 cycle direct drive diesel engines 600 hp 450 kW each 2 3 2 60 cell Gould paste batteries 2 2 Ridgeway electric motors 1 175 hp 876 kW each 4 2 two shaftsSpeed11 5 knots 21 km h surfaced 1939 2 8 9 knots 16 5 km h submerged 2 Range3 710 nautical miles 6 870 km 6 5 knots 12 km h 2 7 900 nautical miles 14 600 km 6 5 knots 12 0 km h with fuel in main ballast tanks 1939 2 Endurance20 hours 5 knots 9 km h 2 Test depth200 ft 60 m 2 Complement4 officers 39 enlisted 1939 2 Armament4 21 inch 533 mm torpedo tubes forward 12 torpedoes 2 1 4 in 102 mm 50 cal deck gun 2 4 Contents 1 Construction and commissioning 2 Modifications 3 Service history 3 1 Interwar period 3 2 World War II 4 Disposal 5 ReferencesConstruction and commissioning editS 20 s keel was laid down on 15 August 1918 by the Bethlehem Shipbuilding Corporation s Fore River Shipyard at Quincy Massachusetts She was launched on 9 June 1920 sponsored by Miss Anne Claggett Zell and commissioned on 22 November 1922 Modifications editS 20 was rebuilt in 1924 with a larger bow similar to that of the V 1 class to improve seakeeping and blisters on the upper hull to hold more fuel but this modification was not repeated on any other members of her class 5 6 7 S 20 was also used as an experimental engine test vessel with a new high speed geared drive 600 horsepower 447 kW MAN diesel engine replacing her starboard engine in 1931 6 In 1932 this new engine was replaced by a prototype diesel electric plant This was a MAN type 635 horsepower 474 kW 16 cylinder engine running at even higher speed driving an electrical generator built by the Electric Boat Company and designated 16VM1 Electricity produced by the generator was used to drive a high speed electric motor geared to the shaft there was no direct connection between the diesel engine and the shaft Diesel electric propulsion was then adopted for many U S submarines through World War II starting with the 1932 Porpoise class other navies did not follow suit until after World War II 6 8 9 10 Service history editInterwar period edit In addition to duty along the northeastern coast of the United States while based at New London Connecticut from 1922 to 1929 S 20 visited Coco Solo in the Panama Canal Zone in March 1923 served at Saint Thomas United States Virgin Islands in February 1924 and operated in the Panama Canal area from January through April 1926 S 20 visited Kingston Jamaica from 20 to 28 March 1927 and served again in the Panama Canal area from 17 April 1929 to November 1930 Departing Coco Solo on 7 November 1930 S 20 arrived at Pearl Harbor Hawaii on 7 December 1930 Following duty there she departed on 20 February 1932 and from March 1932 to April 1933 served at Mare Island California Later she operated mainly at San Diego California into 1934 Departing San Diego on 15 March 1934 S 20 returned to New London on 28 October 1934 From then until December 1941 she operated there as part of a test and evaluation division During this period she visited Guantanamo Cuba from February to March 1938 served in the Panama Canal area from January to March 1939 and visited Guantanamo again in February 1940 Her commanding officer from 1936 to 1937 was Lieutenant later Captain John P Cromwell a future posthumous Medal of Honor recipient for his actions aboard USS Sculpin SS 191 in 1943 From 1941 to 1942 her commander was another future Medal of Honor recipient Lieutenant later Commander Samuel David Dealey World War II edit From December 1941 to July 1945 S 20 continued to operate from New London Her operations were off New England and often included training activities at Casco Bay Maine Disposal editDeparting New London on 2 July 1945 S 20 was decommissioned on 16 July at Philadelphia Pennsylvania Her name was struck from the Naval Vessel Register on 25 July She was sold on 22 January 1946 to North American Smelting Company Philadelphia for scrapping References edit a b c d e f g Friedman Norman 1995 U S Submarines Through 1945 An Illustrated Design History Annapolis Maryland United States Naval Institute pp 285 304 ISBN 1 55750 263 3 a b c d e f g h i j k l m n o p q U S Submarines Through 1945 pp 305 311 U S Submarines Through 1945 p 258 a b c Bauer K Jack Roberts Stephen S 1991 Register of Ships of the U S Navy 1775 1990 Major Combatants Westport Connecticut Greenwood Press pp 266 267 ISBN 0 313 26202 0 U S Submarines Through 1945 pp 132 a b c U S Submarines Through 1945 pp 137 U S Submarines Through 1945 pp 138 U S Submarines Through 1945 p 198 U S Submarines Through 1945 p 259 261 U S Submarines Through 1945 p 359 This article incorporates text from the public domainDictionary of American Naval Fighting Ships The entry can be found here Retrieved from https en wikipedia org w index php title USS S 20 amp oldid 1152971659, wikipedia, wiki, book, books, library,
