USS Gwin (DD-433) Specifications

As a 1,630-tonner authorized in 1940, known at the time to shipmates as a Livermore-class ship, the specifications for Gwin reflected the characteristics of the ten Gleaves-class ships built at Boston Navy Yard:

DATA

Name: United States Ship Gwin
Type: Destroyer
Namesake: Lieutenant Commander William Gwin
Navy Classification: DD 433
Class: DD 423, Gleaves, also Livermore
Builder: Boston Navy Yard, Charlestown, Massachusetts
Keel laid: 1 June 1939
Launched: 25 May 1940
Commissioned: 15 January 1941
Lost: 13 July 1943

Length Overall:

Extreme Beam:

Normal Displacement:

Draft:

Designed Complement:

Designed Shaft Horsepower:

Designed Speed:

Screws:

Rudder:

Stacks:

As commissioned, Gwin’s armament was typical for a mid-1941 Livermore-class destroyer armed as follows:.

Primary:

Short-range anti-aircraft:

Torpedo Tubes:

ASW:

Her electronics were typical of the period just before SG (surface search) radar became available:

Radar:

Sonar:

In common with other destroyers of DesDiv 22, her No. 3 5-inch gun was removed to reduce topweight and 20mm single Oerlikons replaced her 0.50 cal. machine guns as follows:

Primary:

Short-range anti-aircraft:

Torpedo Tubes:

ASW:

In a refit at Mare Island, February 1943, SG radar was fitted and her two after 20mm guns were replaced by 40mm twin Bofors. Her final armament was as follows:

Primary:

Long-range anti-aircraft:

Short-range anti-aircraft:

Torpedo Tubes:

ASW:

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