Design and Construction
Conyngham was authorized in 1913 as the second ship of the Tucker class which, like the related O'Brien class, was an improved version of the Cassin-class destroyers authorized in 1911. Construction of the vessel was awarded to William Cramp and Sons of Philadelphia, which laid down her keel on 27 July 1914. Twelve months later, on 8 July 1915, Conyngham was launched by sponsor Miss A. C. Stevens, a great-great-granddaughter of the ship's namesake, Gustavus Conyngham (1744–1819), a Continental Navy officer. As built, Conyngham was 315 feet 3 inches (96.09 m) in length and 30 feet 6 inches (9.30 m) abeam and drew 9 feet 4 inches (2.84 m). The ship had a standard displacement of 1,090 long tons (1,110 t) and displaced 1,205 long tons (1,224 t) when fully loaded.
Conyngham had two Curtis steam turbines that drove her two screw propellers, and an additional steam turbine geared to one of the propeller shafts for cruising purposes. The power plant could generate 18,000 shaft horsepower (13,000 kW) and move the ship at speeds up to 29.5 knots (54.6 km/h).
Conyngham's main battery consisted of four 4-inch (102 mm)/50 Mark 9 guns, with each gun weighing in excess of 6,100 pounds (2,800 kg). The guns fired 33-pound (15 kg) armor-piercing projectiles at 2,900 feet per second (880 m/s). At an elevation of 20°, the guns had a range of 15,920 yards (14,560 m).
Conyngham was also equipped with eight 21-inch (533 mm) torpedo tubes. The General Board of the United States Navy had called for two anti-aircraft guns for the Tucker-class ships, as well as provisions for laying up to 36 floating mines. From sources, it is unclear if these recommendations were followed for Conyngham or any of the other ships of the class.
Read more about this topic: USS Conyngham (DD-58)
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