Armament, fire control, protection and sensors They were crewed by 9 officers and 264 enlisted men. The destroyers carried enough fuel oil to give them a range of 4,490 nautical miles (8,320 km 5,170 mi) at 15 knots (28 km/h 17 mph). The turbines produced 60,000 shaft horsepower (45,000 kW) which was intended to give the ships a top speed of 37.8 knots (70.0 km/h 43.5 mph). The ships were powered by two General Electric geared steam turbines that each drove one propeller shaft using steam provided by four Babcock & Wilcox boilers. They had an overall length of 376 feet 6 inches (114.76 m), with a draft of 17 feet 9 inches (5.41 m) and beam of 39 feet 8 inches (12.09 m). In addition, visibility from the bridge was improved by the addition of an open platform connected to the bridge wings. The splinter plating protecting the bridge and the director was also reduced in thickness. One deck was removed from the aft superstructure and the base of the fire-control director above the bridge was shortened by six feet (1.8 m). In early 1942, the design of the Fletchers was modified to reduce topweight and to simplify the construction of the bridge by squaring off the curves at its front. The Fletchers displaced 2,100 long tons (2,134 t) at standard load and 2,544 long tons (2,585 t) at deep load, roughly 30 percent more than the Bensons and Gleaves. This allowed them to accept additional anti-aircraft (AA) guns and electronic equipment as well as their operators without sacrificing guns or torpedoes as the older ships were forced to do during the war. To rectify the top-heaviness and stability problems of the preceding Benson-class destroyer and Gleaves classs, the Fletcher class was greatly increased in size over the older design. 2.1 Gilbert and Marshall Islands campaign.1.1 Armament, fire control, protection and sensors.Lying more than 20,000 feet (6,100 m) below the surface of the ocean, it was the deepest shipwreck ever surveyed until the discovery of USS Samuel B. Johnston 's wreck was discovered on 30 October 2019 but was not properly identified until March 2021. After engaging several Japanese capital ships and a destroyer squadron, Johnston was sunk with 187 dead, including Evans. In what became known as the Battle off Samar, Johnston and the other escort ships charged the Japanese ships to protect nearby US carriers and transport craft. On 25 October 1944, while assigned as part of the escort to six escort carriers, Johnston, two other Fletcher-class destroyers, and four destroyer escorts were engaged by a large Imperial Japanese Navy flotilla. Thereafter, Johnston was tasked with escorting escort carriers during the Mariana and Palau Islands campaign and the liberation of the Philippines. Johnston provided naval gunfire support for American ground forces during the Gilbert and Marshall Islands campaign in January and February 1944 and again, after three months of patrol and escort duty in the Solomon Islands, during the recapture of Guam in July. Evans and was assigned to the US Pacific Fleet. She entered active duty in October 1943 under the command of Lieutenant Commander Ernest E. Johnston was laid down in May 1942 and was launched on 25 March 1943. Johnston, an officer of the US Navy during the American Civil War. USS Johnston (DD-557) was a Fletcher-class destroyer built for the United States Navy during World War II. 2 × quintuple 21 in (533 mm) torpedo tubes.

Skipper johnston