USS Hammann (DD-412)

Hammann after completion in 1939
History
United States
Namesake	Charles Hammann
Builder	Federal Shipbuilding and Drydock Company
Laid down	17 January 1938
Launched	4 February 1939
Commissioned	11 August 1939
Out of service	June 1942
Identification	DD-412
Honors and awards	American Defense Service Medal ("Fleet" clasp, "A" device), Asiatic-Pacific Campaign Medal (2 stars), World War II Victory Medal
Fate	Sunk, in Battle of Midway on 6 June 1942
General characteristics
Class and type	Sims-class destroyer
Displacement	1,570 long tons (1,600 t) (std) 2,211 long tons (2,246 t) (full)
Length	348 ft 3+1⁄4 in (106.2 m)
Beam	36 ft 1 in (11.0 m)
Draft	13 ft 4.5 in (4.1 m)
Propulsion	High-pressure super-heated boilers Geared turbines with twin screws 50,000 hp (37,000 kW)
Speed	35 knots (65 km/h; 40 mph)
Range	3,660 nmi (6,780 km; 4,210 mi) at 20 kn (37 km/h; 23 mph)
Complement	192 (10 officers/182 enlisted)
Armament	4 × single 5-inch/38-caliber guns 4 × single .50-caliber machine guns 2 × quadruple 21-inch torpedo tubes 2 × depth charge track, 10 depth charges

USS Hammann (DD-412) was a World War II-era Sims-class destroyer in the service of the United States Navy, named after Ensign Charles Hammann, a Medal of Honor recipient from World War I. Hammann was torpedoed and sunk during the Battle of Midway, while assisting the sinking aircraft carrier USS Yorktown.

Hammann was launched by the Federal Shipbuilding and Drydock Company, Kearny, New Jersey on 4 February 1939; sponsored by Miss Lillian Hammann; and commissioned on 11 August 1939, Commander Arnold E. True in command. Hammann conducted shakedown off the East Coast and for the next two years participated in training and readiness operations off both coasts.