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| Allen M. Sumner-class destroyer | |
|---|---|
| Name | Allen M. Sumner-class destroyer |
| Caption | USS Allen M. Sumner (DD-692) underway, 1944 |
| Country | United States |
| Builder | Bath Iron Works, Federal Shipbuilding and Drydock Company, William Cramp & Sons, Bethlehem Steel |
| Commissioned | 1944–1945 |
| Decommissioned | 1973–1988 |
| Total | 58 |
| Class before | Fletcher-class destroyer |
| Class after | Gearing-class destroyer |
Allen M. Sumner-class destroyer
The Allen M. Sumner-class destroyer was a class of United States Navy destroyers that entered service during World War II and served through the Cold War era, participating in operations from the Pacific Theater of World War II to the Korean War and Vietnam War. Designed as an evolution of the Fletcher-class destroyer with improved anti-aircraft warfare, anti-submarine warfare, and gunnery capabilities, the class set a template for postwar destroyer modernization programs such as FRAM. Named for Allen Melancthon Sumner, the class reflected technological trends influenced by lessons from Battle of Midway, Battle of the Philippine Sea, and the naval engagements of 1943–1945.
The Sumners were developed by the United States Navy Bureau of Ships and private yards including Bath Iron Works to address limitations uncovered in the Fletcher-class destroyer during the campaigns in the Solomon Islands campaign, Gilbert and Marshall Islands campaign, and Marianas campaign. Naval architects increased beam and redesigned the superstructure to house twin 5-inch/38 caliber gun mounts, improved fire-control systems derived from lessons at Admiralty, and enhanced stability for additional anti-aircraft artillery and radar installations. The class incorporated new standards from the National Defense Program of 1942 and was influenced by studies of Admiral Ernest J. King’s operational requirements and procurement priorities set during the War Production Board era.
Original armament centered on three twin 5-inch/38 caliber dual-purpose mounts controlled by Mark 37 Gun Fire Control System directors linked to Mark 12 fire control radar and SG surface search radar installations; anti-aircraft defense included multiple 40 mm Bofors and 20 mm Oerlikon mounts reflecting wartime trends exemplified by engagements like the Battle of Okinawa. Anti-submarine equipment comprised depth charge racks, K-gun throwers, and later additions such as ASROC and Hedgehog systems during modernization influenced by the Soviet submarine force threat during the Cold War. Sensor suites expanded to include sonar types such as QC sonar and later SQS-23 and electronic warfare sets from contractors like Westinghouse Electric Company and Raytheon.
Propulsion comprised high-pressure steam boilers feeding geared steam turbines built by firms including General Electric and Westinghouse that produced approximately 60,000 shaft horsepower for speeds up to 34 knots, enabling task force maneuvers during operations alongside Aircraft carrier task groups such as those centered on USS Enterprise (CV-6) and later USS Midway (CV-41). Range and endurance supported transoceanic deployments between ports like Pearl Harbor, San Diego, California, and Yokosuka, Japan for Pacific operations and forward basing during Korean War cruises. Hull modifications and increased beam improved seakeeping compared with the Fletcher-class destroyer, benefiting personnel from Destroyer Squadron deployments.
Built rapidly under wartime mobilization by yards including Bath Iron Works, Federal Shipbuilding and Drydock Company, Kaiser Shipyards, and Bethlehem Steel, 58 ships were completed between 1943 and 1945 under contracts administered by the United States Maritime Commission. Keel-laying and launching events often featured dignitaries from United States Navy leadership, local politicians, and war bond campaigns tied to the Home Front effort. Industrial lessons from production runs influenced later designs such as the Gearing-class destroyer and shipyard practices at Newport News Shipbuilding and West Coast facilities.
Sumners entered service in time to join Pacific Fleet operations supporting carrier task forces during 1944–1945, providing escort during raids on Japanese home islands, shore bombardment for Amphibious warfare operations such as Leyte Gulf support, and anti-aircraft screens during battles like the Battle of Leyte Gulf. Postwar, many served in Operation Magic Carpet repatriation missions and in patrolling duties during tensions such as the Chinese Civil War aftermath. During the Korean War Sumners conducted blockade, escort, and coastal fire support missions off Korea alongside ships from Royal Navy and Royal Australian Navy task groups, and in the Vietnam War they performed naval gunfire support and plane guard duties with United States Seventh Fleet carriers like USS Coral Sea (CVA-43). Cold War incidents, NATO exercises, and Suez Crisis era deployments further demonstrated their versatility.
Postwar modernization programs included the Fleet Rehabilitation and Modernization (FRAM) program that updated many Sumners with improved anti-submarine warfare gear such as ASROC launchers, helicopter platforms for Drone Anti-Submarine Helicopter (DASH) systems, and contemporary sonar and fire-control electronics drawing on research from Office of Naval Research. Variants arose from conversion designs tested at Naval Ship Research and Development Center, producing DD, DDR (radar picket), and DER (radar picket escort) configurations. FRAM upgrades extended operational lives into the 1960s and 1970s, paralleling conversions seen in classes like Gearing-class destroyer.
A small number of Sumners survived into reserve fleets or were transferred under military aid programs to allied navies such as Republic of Korea Navy, Republic of China Navy, and Brazilian Navy, where they served into the late 20th century before scrapping or sinking as targets. Preserved examples and components appear in naval museums and memorials associated with institutions like the Naval History and Heritage Command, Intrepid Sea, Air & Space Museum, and regional maritime museums in Bath, Maine and Philadelphia, Pennsylvania. Several hulls were deliberately sunk to form artificial reefs in accordance with programs administered by the National Oceanic and Atmospheric Administration and state agencies.
Category:Destroyer classes of the United States Navy