Sims-class destroyer

USS Sims on trials in 1939, still missing its Mk37 director
Class overview
Name	Sims class
Builders	Bath Iron Works Federal Shipbuilding Newport News Shipbuilding Boston Navy Yard Norfolk Naval Shipyard Charleston Navy Yard Philadelphia Naval Shipyard
Operators	United States Navy
Preceded by	Benham class
Succeeded by	Benson class
Built	1937–1940
In commission	1939–1946
Completed	12
Lost	5
Retired	7
General characteristics
Type	Destroyer
Displacement	1,570 tons (light standard) 2,293 tons (full load)
Length	348 ft 3 in (106.15 m)
Beam	36 ft 1 in (11.00 m)
Draft	13 ft 4 in (4.06 m)
Installed power	3 Babcock & Wilcox boilers, 2 geared steam turbines, 51,138 shp (38,134 kW) on trials
Propulsion	2 shafts
Speed	37 knots (69 km/h; 43 mph) on trials
Range	5,640 nmi (10,450 km; 6,490 mi) at 12 knots (22 km/h; 14 mph)
Complement	10 officers, 182 enlisted (peacetime) 16 officers, 235 enlisted (wartime)
Sensors and processing systems	Mk37 GFCS (introduced) 1 × SC radar
Armament	As designed: 5 × 5 inch (127 mm)/38 caliber guns (5×1) 4 × .50 caliber machine guns (12.7 mm) 12 × 21 inch (533 mm) torpedo tubes (3 × 4) (one mount centerline) 2 × depth charge racks Typical 1941: 4 × 5 inch (127 mm)/38 caliber guns (4×1) 8 × .50 caliber (12.7 mm) machine guns 8 × 21 inch (533 mm) torpedo tubes (2 × 4) (both mounts centerline) 2 × depth charge racks Typical 1944: 4 × 5 inch (127 mm)/38 caliber guns (4×1) 4 × 40 mm Bofors guns (1.6 in) (2 × 2) 4 × 20 mm Oerlikon guns (0.8 in) 8 × 21 inch (533 mm) torpedo tubes (2 × 4) (both mounts centerline) 6 × K-gun depth charge throwers 2 × depth charge racks
Notes	fuel capacity: 444 tons

The Sims-class destroyers were built for the United States Navy, and commissioned in 1939 and 1940. These twelve ships were the last United States destroyer class completed prior to the American entry into World War II. All Sims-class ships saw action in World War II, and seven survived the war. No ship of this class saw service after 1946. They were built under the Second London Naval Treaty, in which the limit on destroyer standard displacement was lifted, but an overall limit remained. Thus, to maximize the number of destroyers and avoid developing an all-new design, the Sims class were only 70 tons larger as designed than previous destroyers.^[1] They are usually grouped with the 1500-ton classes and were the sixth destroyer class since production resumed with the Farragut class in 1932.^[2]

The class served extensively in World War II, and five of the class were lost in the war. Of the five ships lost, four were at the hands of the Japanese and one at the hands of the Germans. The class served on Neutrality Patrols in the Atlantic in 1940-41. Except for Roe, Wainwright, and Buck, the class was transferred to the Pacific shortly after the attack on Pearl Harbor. All of the ships saw extensive combat service. At the war's end in August 1945, three of the seven survivors were undergoing overhauls that were left unfinished, and were ultimately scrapped. The remaining four seaworthy ships were used as targets during the 1946 Operation Crossroads atomic tests at Bikini Atoll. One was sunk by the first blast, while the other three were sunk as targets two years later after serving as experimental platforms.