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Concept
Spruance-class destroyer
Summary
The Spruance-class destroyer was developed by the United States to replace the many World War II–built - and s, and was the primary destroyer built for the United States Navy during the 1970s and 1980s. It was named in honor of U.S. Navy Admiral Raymond A. Spruance, who successfully led major naval battles in the Asiatic-Pacific Theater during World War II such as the Battle of Midway and the Battle of the Philippine Sea.
Introduced in 1975, the class was designed with gas-turbine propulsion, a flight deck and hangar for up to two medium-lift helicopters, all-digital weapons, and automated 127 mm (5-inch) guns. The Spruance class was originally designed to escort a carrier group, primarily for anti-submarine warfare (ASW), with point-defense anti-aircraft warfare (AAW) missiles and limited anti-ship capabilities. Two dozen members of the class were upgraded with Tomahawk cruise missiles for land attack. The Navy retired the class somewhat earlier than planned, decommissioning the last ship in 2005. Most Spruances were broken up or destroyed as targets. Its hull form and propulsion plant were adopted as the foundation of the Ticonderoga-class cruisers constructed in the 1980s. The class was succeeded as the main U.S. destroyer by the Arleigh Burke-class destroyer.
Much larger than other destroyers of the era, the Spruances were comparable in size to contemporary guided-missile cruisers (CG and CGN) and U.S. Navy light cruisers (CL) in World War II. This allowed them to accommodate a helicopter flight deck, a first for a U.S. Navy destroyer, and an enclosed hangar with space for up to two medium-lift helicopters, a first for a U.S. Navy destroyer or cruiser. The "Spru-cans" were the first large U.S. Navy ships to use gas turbine propulsion: four General Electric LM2500 gas turbines that generated about 80,000 horsepower (60 MW). This configuration (developed in the 1960s by the Royal Canadian Navy for the s and known as COmbined Gas And Gas, or COGAG) was very successful and used on most subsequent U.S. warships.
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