USS Sitkoh Bay
USS Sitkoh Bay
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USS Sitkoh Bay

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USS Sitkoh Bay

USS Sitkoh Bay (CVE-86) was the thirty-second of fifty Casablanca-class escort carriers built for the United States Navy during World War II. She was named after Sitkoh Bay, located within Chichagof Island, of the Territory of Alaska. The ship was launched in February 1944, commissioned in March, and served as a replenishment and transport carrier throughout the Philippines campaign, the Invasion of Iwo Jima and the Battle of Okinawa. She was decommissioned in November 1946, when she was mothballed in the Atlantic Reserve Fleet. With the outbreak of the Korean War, however, she was called back to service, continuing to serve as a transport and utility carrier with the Military Sealift Command until 1954, when she was once again decommissioned, and mothballed in the Pacific Reserve Fleet. Ultimately, she was broken up in January 1961.

Sitkoh Bay was a Casablanca-class escort carrier, the most numerous type of aircraft carriers ever built. Built to stem heavy losses during the Battle of the Atlantic, they came into service in late 1943, by which time the U-boat threat was already in retreat. Although some did see service in the Atlantic, the majority were utilized in the Pacific, ferrying aircraft, providing logistics support, and conducting close air support for the island-hopping campaigns. The Casablanca-class carriers were built on the standardized Type S4-S2-BB3 hull, a lengthened variant of the Doyen-class hull, and specifically designed to be mass-produced using welded prefabricated sections. This allowed them to be produced at unprecedented speeds: the final ship of her class, Munda, was delivered to the Navy just 101 days after the laying of her keel.

Sitkoh Bay was 512 ft 3 in (156.13 m) long overall (490 ft (150 m) at the waterline), had a beam of 65 ft 2 in (19.86 m), and a draft of 20 ft 9 in (6.32 m). She displaced 8,188 long tons (8,319 t) standard, which increased to 10,902 long tons (11,077 t) with a full load. To carry out flight operations, the ship had a 257 ft (78 m) hangar deck and a 474 ft (144 m) flight deck. Her compact size necessitated the installation of an aircraft catapult at her bow, and there were two aircraft elevators to facilitate movement of aircraft between the flight and hangar deck: one each fore and aft.

She was powered by four Babcock & Wilcox Express D boilers that raised 285 psi (1,970 kPa) of steam at 577 °F (303 °C). The steam generated by these boilers fed two Skinner Unaflow reciprocating steam engines, delivering 9,000 hp (6,700 kW) to two propeller shafts. This allowed her to reach speeds of 19 kn (35 km/h; 22 mph), with a cruising range of 10,240 nmi (18,960 km; 11,780 mi) at 15 kn (28 km/h; 17 mph). For armament, one 5 in (127 mm)/38 caliber dual-purpose gun was mounted on the stern. Additional anti-aircraft defense was provided by eight Bofors 40 mm (1.57 in) anti-aircraft guns in single mounts and twelve Oerlikon 20 mm (0.79 in) cannons mounted around the perimeter of the deck. By 1945, Casablanca-class carriers had been modified to carry twenty Oerlikon cannons and sixteen Bofors guns; the doubling of the latter was accomplished by putting them into twin mounts. Sensors onboard consisted of a SG surface-search radar and a SK air-search radar.

Although Casablanca-class escort carriers were intended to function with a crew of 860 and an embarked squadron of 50 to 56, the exigencies of wartime often necessitated the inflation of the crew count. They were designed to operate with 27 aircraft, but the hangar deck could accommodate much more during transport or training missions.

Her construction was awarded to Kaiser Shipbuilding Company, Vancouver, Washington under a Maritime Commission contract, on 18 June 1942. The escort carrier was laid down on 23 November 1943 under the name Sitkoh Bay, as part of a tradition which named escort carriers after bays or sounds in Alaska. She was laid down as MC hull 1123, the thirty-second of a series of fifty Casablanca-class escort carriers. She therefore received the classification symbol CVE-86, indicating that she was the eighty-sixth escort carrier to be commissioned into the United States Navy. She was launched on 19 February 1944; sponsored by Mrs. Kathryn Mullinix, the widow of Rear admiral Henry M. Mullinnix, who had perished when her sister Liscome Bay was sunk by the Japanese submarine I-175; transferred to the Navy and commissioned on 28 March 1944, with Captain Robert Green Lockhart in command.

Upon being commissioned, Sitkoh Bay underwent a shakedown cruise down the West Coast to Naval Air Station Alameda, and upon arriving on 28 April, she took on a load of cargo and passengers. She left Alameda on 30 April, bound for Pearl Harbor, and for the next half-year, she carried out routine transport missions between California and various bases scattered throughout the Central and South Pacific, as a part of Task Group 30.8, the Fleet Oiler and Transport Group, under the command of Captain Jasper T. Acuff. For example, during the latter part of 1944, she touched Majuro in the Marshall Islands, Manus in the Admiralty Islands, transiting via Pearl Harbor. The aircraft and passengers delivered on these transport missions went to the United States Third Fleet and the United States Seventh Fleet, respectively, although the ship's action report did note that a significant portion of these replenishment aircraft were recycled from damaged carriers returning to the backline, and that they were often in rather poor condition. The air personnel that were delivered could also be of questionable quality, with some sitting in the reserve pool rarely flying for up to eight months. For example, the flight surgeon of Sitkoh Bay reported visiting a pilot who suffered from epilepsy, and another pilot who displayed a suicidal ideation regarding hurling himself into a spinning propeller.

In January 1945, Sitkoh Bay became a replenishment carrier solely dedicated to resupplying the Third Fleet within the Central Pacific, as it participated in the Philippines campaign, the Invasion of Iwo Jima, and prepared for the Battle of Okinawa. During this period, her ports of call included Guam and Roi-Namur, both in the Marianas Islands, Enewetak Atoll in the Marshalls, and Ulithi Atoll, located in the Caroline Islands. On one of these stops, Captain James Paul Walker raised his flag over the vessel on 1 February.

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