Caldwell-class destroyer

USS Caldwell in harbor in 1919
Class overview
Name	Caldwell class
Builders	Mare Island Navy Yard Norfolk Navy Yard Seattle Dry Dock Company William Cramp & Sons Bath Iron Works
Operators	United States Navy  Royal Navy
Preceded by	Sampson class
Succeeded by	Wickes class
Subclasses	Town class
Built	1916–20
In commission	1917–45
Completed	6
Retired	6
General characteristics
Type	Destroyer
Displacement	1,020 tons (standard) 1,125 tons (normal)
Length	308 ft (94 m) waterline 315 ft 6 in (96.16 m) overall
Beam	31 ft 3 in (9.53 m)
Draft	8 ft (2.4 m) 11 ft 6 in (3.51 m) max
Propulsion	(DD 69-71, 74) Thornycroft boilers Parsons geared steam turbines two shafts (20,000 shp (15 MW)) (DD 72-73) White-Forster boilers Parsons direct drive turbines three shafts (18,500 hp (13.8 MW))
Speed	(DD 69-71, 74) 32 kn (59 km/h)[2] (DD 72-73) 30 kn (56 km/h)
Complement	146
Armament	4 × 4 in (102 mm)/50 caliber guns[1] 1 × 3 in (76 mm)/23 caliber gun 12 × 21 in (533 mm) torpedo tubes (4 × 3)

The Caldwell class was a class of six "flush deck" United States Navy destroyers built during World War I and shortly after. Four served as convoy escorts in the Atlantic; the other two were completed too late for wartime service. Two were scrapped during the 1930s, but four survived to serve throughout World War II, three of these in service with the Royal Navy under the Destroyers for Bases Agreement and the fourth as a high speed transport.