Spruance-class destroyer

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.

[1] The Spruance class was also unfavorably compared to earlier U.S. designs that had more visible guns or launchers for Standard medium-range missiles.

However, their original complement of 8 Sea Sparrow anti-aircraft missiles was only sufficient for point defense, compared to other American destroyers designated as DDG which were designed to provide anti-aircraft warfare screening to the fleet, while some newer DDG ships further added surface-to-surface capabilities for anti-ship or land strike.

Despite these upgrades, the class retained their DD classification as they lacked the area anti-aircraft capabilities of guided-missile cruisers (CG and CGN) and destroyers (DDG).

It aimed to award the production contract for the entire class of 30 ships to a single shipyard, under the Total Package Procurement concept originated by the Whiz Kids of Robert McNamara's Pentagon.

After a selection process "noted for political influence and shifting rules," the entire contract was awarded on 23 June 1970 to the Litton-Ingalls shipyard in Pascagoula, Mississippi.

Although originally designed for anti-submarine warfare, seven vessels—Comte de Grasse, Merrill, Conolly, John Rodgers, Leftwich, Deyo, and Ingersoll—were initially upgraded with the installation of pair of four-round Armored Box Launchers (ABL) for the Tomahawk cruise missile, one each side of the ASROC launcher, giving them a land attack capability.

23 of the remaining vessels then received a more comprehensive upgrade with the installation of a 61-cell Mark 41 Vertical Launch Missile System (VLS) forward, replacing the ASROC launcher and allowing for a greater weapons load to be carried.

At least ten VLS ships, including Cushing, O'Bannon, and Thorn, had a 21-cell Mark 49 RIM-116 Rolling Airframe Missile launcher mounted on the starboard fantail.

[12] In order to save $28 million a year, the Navy accelerated the decommissioning of the Spruance class, though they could have served to 2019 had they been maintained and updated.

Six Spruance -class destroyers fitting out, c. May 1975