USS O'Bannon (DD-450)

USS O'Bannon (DD-450)
Ship name	USS O'Bannon (DD-450)
Ship namesake	Presley O'Bannon
Ship class	Fletcher-class destroyer
Ship displacement	2,050 long tons (standard)
Ship length	376 ft 6 in
Ship beam	39 ft 8 in
Ship draught	17 ft 9 in
Ship propulsion	60,000 shp; 2 propellers
Ship speed	35 kn
Ship range	6,500 nmi at 15 kn
Ship complement	273 officers and enlisted
Ship armament	5 × 5 in/38 cal guns, 10 × 21 in torpedo tubes, depth charges, 6 × 40 mm AA, 7 × 20 mm AA
Ship builder	Bath Iron Works
Ship laid down	18 November 1941
Ship launched	7 June 1942
Ship commissioned	31 August 1942
Ship decommissioned	1 December 1949

USS O'Bannon (DD-450) was a Fletcher-class destroyer of the United States Navy that served with distinction in the Pacific Theater of World War II. Commissioned in 1942, she earned renown for aggressive surface actions, anti-submarine warfare, and convoy escort duties during campaigns such as Guadalcanal Campaign, Aleutian Islands Campaign, and the Philippine Sea. Her wartime record included multiple battle stars and the prestigious Presidential Unit Citation.

Construction and Commissioning

Keel laying for the destroyer named after Presley O'Bannon began at Bath Iron Works in Bath, Maine on 18 November 1941. Launched on 7 June 1942 with sponsorship by Mrs. O'Bannon's descendant, the ship completed fitting-out before commissioning on 31 August 1942 under the command of Lieutenant Commander H. H. Caldwell. Built during the rapid expansion prompted by Attack on Pearl Harbor and the Naval Act of 1938 mobilization efforts, the hull incorporated wartime production techniques developed alongside other vessels at Bath Iron Works and yards like Bethlehem Steel and New York Shipbuilding Corporation.

Service History

O'Bannon joined South Pacific Area operations, screening aircraft carriers such as USS Enterprise (CV-6) and USS Saratoga (CV-3) and supporting the Guadalcanal Campaign. She participated in night actions against Imperial Japanese Navy forces, contributing to engagements linked with the Naval Battle of Guadalcanal and escorting convoys to forward bases including Espiritu Santo and Tulagi. In early 1943 she operated in the Aleutian Islands Campaign, conducting patrols out of Dutch Harbor and engaging in anti-submarine warfare against threats related to IJN submarine operations.

During 1944 and 1945 O'Bannon supported major operations such as the Gilbert and Marshall Islands campaign, Battle of the Philippine Sea, and the Leyte Gulf operations. She screened fast carrier task forces centered on Task Force 58 and performed plane guard duty for fleet carriers during strikes on Truk and the Marianas. Notable actions included surface engagements with enemy destroyers and a celebrated shallow-water anti-submarine/board-and-destroy incident attributed in lore to attacks on a Japanese submarine near Benson-class destroyer theaters, contributing to her combat reputation alongside vessels like USS Fletcher (DD-445) and USS Johnston (DD-557).

After VJ Day O'Bannon participated in occupation support, repatriation missions, and training operations before returning to the United States. She was decommissioned in 1949 and placed in reserve amid postwar reductions tied to the National Security Act of 1947 restructuring.

Battle Honors and Awards

O'Bannon earned 17 battle stars for World War II service and was awarded the Presidential Unit Citation for outstanding performance during multiple engagements. Her citations referenced actions in the Solomon Islands, the Gilberts, the Marianas, and the Philippines, reflecting contributions to campaigns recognized by the Navy Unit Commendation framework and the Purple Heart awards to crew members wounded in combat. The ship's record was cited in Naval history summaries and commemorated in postwar analyses of destroyer-class effectiveness.

Commanding Officers

Commanding officers included Lieutenant Commander H. H. Caldwell at commissioning, followed by commanders who led during key operations in the South Pacific and the Central Pacific. Later captains and commanding officers presided over Aleutian operations and the carrier screening assignments associated with Admiral William Halsey Jr. and Admiral Marc Mitscher's carrier forces. Many COs received individual commendations tied to the ship's unit awards and the broader task force honors.

Design and Modifications

As a Fletcher-class destroyer, O'Bannon shared the class's 376-foot hull, geared turbines, and five 5-inch/38-caliber dual-purpose guns, a standardized layout developed from lessons of the London Naval Treaty era and modernization programs preceding World War II. Anti-aircraft armament evolved during wartime refits, adding 40 mm Bofors and 20 mm Oerlikon mounts in response to kamikaze tactics encountered during Okinawa-era operations. Sonar, radar, and fire-control upgrades paralleled advances embodied in projects like the CXAM radar development and Mark 37 gun fire-control system, improving ASW capabilities and surface engagement accuracy. Torpedo tubes and depth-charge equipment were retained and modified for enhanced anti-submarine effectiveness reflecting doctrine from Destroyer Squadron tactics.

Post-war Fate and Preservation

After decommissioning in December 1949, O'Bannon entered the Atlantic Reserve Fleet and remained in mothballs through the early Cold War. She was stricken and sold for scrap in the 1970s, concluding preservation debates similar to those surrounding museum ships such as USS Constitution and USS Midway (CV-41). Artifacts and memorabilia from the ship, including plaques and uniforms, have been archived by naval museums and veteran associations, with crew accounts contributing to oral histories maintained by institutions like the Naval History and Heritage Command and local veterans' organizations.

Category:Fletcher-class destroyers Category:World War II destroyers of the United States Category:Ships built in Bath, Maine Category:1942 ships