HMAS Arunta (I30)

HMAS Arunta (I30/D5/D130) was a destroyer of the Royal Australian Navy (RAN). Named for the Arrernte Aborigines, the destroyer was laid down in 1939 and commissioned into the RAN in 1942.

Arunta fought during the second half of World War II; initially as a convoy escort and patrol ship, then in the shore bombardment and amphibious landing support roles while attached to the United States 7th Fleet. During the war, she was responsible for sinking Japanese submarine JSUB RO-33 off Port Moresby on 24 August 1942, and earned five battle honours (one of which was later rescinded). After the war's end, Arunta underwent two deployments to Japan as part of the British Commonwealth Occupation Force.

The ship underwent a lengthy modernisation from 1949 to 1952, and was reclassified as an anti-submarine destroyer. After conversion, Arunta served in Korean waters after the Korean War armistice, and was one of the first Australian warships assigned to the Far East Strategic Reserve.

Arunta was paid off into operational reserve at the end of 1956, where she remained for twelve years. In 1968, the destroyer was sold for scrap, but was never broken up, instead sinking while under tow off Broken Bay on 13 February 1969.

Design and construction
Arunta, named for the Arrernte Aborigines, was laid down by the Cockatoo Docks and Engineering Company Limited at Sydney in New South Wales on 15 November 1939. She was the first of three Australian Tribal class destroyers.

The destroyer was launched on 30 November 1940 by Lady Zara Gowrie, wife of the serving Governor-General, but became stuck halfway down the slipway, requiring the launching ceremony to be completed the next day. Completed at a cost of AU£500,000, Arunta was commissioned into the RAN on 30 March 1942, exactly a month before work on the ship was completed.

Armament and systems
At launch, the destroyer was fitted with six 4.7 in guns in three twin turrets, two 4 in guns in a twin turret, six single 20 mm Oerlikon anti-aircraft guns, a 2-pdr quadruple pom pom, a 4-tube 21 in torpedo launcher (with a payload of four torpedoes), and two depth charge throwers (with a magazine of 46 charges). Arunta's radar suite consisted of an SG1, an SG4, a 285P4, and a 253P.

In September 1945, all six Oerlikons were replaced with single 40 mm Bofors anti-aircraft guns.

During a modernisation starting in 1949, the aft 4.7-inch gun turret and the depth charge throwers were removed, with the freed-up deck space used to install a Squid anti-submarine mortar. The quadruple pom pom was exchanged for two 40 mm Bofors in a twin mounting. The radar suite was upgraded, requiring that the tripod radar mast be replaced with a stronger lattice structure.

World War II
Arunta commenced her operational career on 17 May 1942, by conducting anti-submarine patrols off New South Wales. On 18 May, in company with HNLMS Tromp, Arunta escorted convoy "ZK.8" out of Sydney composed of the Dutch ships Bantam, Bontekoe, Van Heemskerk and Van Heutsz bound for Port Moresby with 4,735 troops of the Australian 14th Brigade. A month later, the destroyer was assigned to convoy escort duties along the Australian coast, and again began escorting convoys to New Guinea in early August. In this role she first saw action when she attacked and sank the Japanese Kaichū type submarine JSUB RO-33 off Port Moresby on 24 August 1942, killing all 42 men aboard. In January 1943, Arunta took part in the evacuation of Allied guerrillas from Timor before returning to convoy escort duty. The destroyer was relieved from convoy duty in May 1943, and underwent a brief refit before joining Task Force 74 (TF74). Arunta participated in the Operation Chronicle landings, then detached from TF74 in July and returned to Australian waters for patrol and convoy escort duties and a refit, before rejoining the task force on 28 October.

In late November, Arunta fired on Japanese ammunition dumps in New Guinea, before providing support for troop landings at Arawe, Cape Gloucester, and Saidor during December 1943 and January 1944. In March, the destroyer transported the United States 7th Cavalry to the Admiralty Islands, before supporting their landing at Hayne Harbour. From April to September, Arunta provided bombardment support for troop landings at Hollandia, Wakde (where she captured a Japanese soldier), Biak, Noemfoor, Cape Sansapor, and Morotai. On 13 October, Arunta formed part of the Allied fleet bound for Leyte Gulf in the Philippines, and was part of the Allied ambush of a Japanese fleet on 25 October; the Battle of Surigao Strait. During January 1945, Arunta supported the landings at Lingayen Gulf; during the approach a near-miss by a Japanese kamikaze aircraft killed two sailors. Between 13 and 15 February Arunta and her sister ship HMAS Warramunga (I44) sortied from Lingayen Gulf to a point about 300 mi west of Manila in preparation to rescue the crews of any United States aircraft which were downed while attacking two Japanese battleships and their escorts which were returning to Japan from Singapore, but this proved uneventful as the planned attacks were frustrated by bad weather.

Following a refit from March to April, Arunta supported the Australian 6th Division on 10–11 May during their landing at Wewak, then provided shore bombardment to aid the 6th Division's landing at Brunei Bay on 10 June. Later in June, she shelled positions in Luton and Balikpapan, the latter as a precursor to the Allied landing on 1 July. Arunta then returned to Sydney for a refit at Cockatoo Island, and was docked when World War II ended.

For her wartime service, Arunta earned the battle honours "Pacific 1942–45", "New Guinea 1942–44", "Leyte Gulf 1944", "Lingayen Gulf 1945", and "Borneo 1945". The ship also carried the honour "Guadalcanal 1942", but it was later determined that she did not qualify. It was later found that the destroyer did not qualify for the Guadalcanal honour, and that her service in the Pacific Theatre started in 1942, requiring the modification of these honours. Arunta operated with task forces of the United States 7th Fleet for most of her wartime career: according to Cassells, the destroyer was one of the most well-known RAN ships among United States forces.

Post-war
Following her refit, which concluded in October 1945, Arunta was sent to Japan to serve with the British Pacific Fleet (BPF) as part of the British Commonwealth Occupation Force. She remained in Japanese waters until March 1946, and returned in mid-December after a cruise through Papua New Guinea and the Philippines for a second deployment with the BPF, which lasted until early April 1947. In June 1948, Arunta visited several Melanesian islands. At the end of 1949, the destroyer prepared for a modernisation refit, which started in 1950. The refit involved upgrading or replacing several of the destroyer's weapons and sensor systems. Although the modernisation was intended to take less than six months, it took two years, by which time their modifications had already become obsolete.

On 11 November 1952, Arunta was reclassified as an anti-submarine destroyer, and re-entered service. She spent all of 1953 in Australian waters, and in January 1954 sailed to Korea to support the United Nations enforcement of the June 1953 armistice which ended the Korean War. Arunta returned to Australia in August, and remained there until May 1955, when she joined a flotilla of RAN and Royal New Zealand Navy vessels sailing to Malaya for exercises with the BPF. Instead of returning home in late June, Arunta and Warramunga were refitted at Singapore before becoming the first Australian ships to serve with the Far East Strategic Reserve, which they operated with until December. Arunta was deployed to northern Australia for a cruise during March and April 1956, and visited Norfolk Island and the Pitcairn Islands in June, before arriving in Sydney on 14 June for preparations to be decommissioned.

Decommissioning and fate
After being prepared for placement in operational reserve, Arunta paid off to reserve on 21 December 1956. During her career, she had sailed 357273 nmi. The destroyer was maintained until 1 November 1968, when she was sold to the China Steel Corporation of Taipei for breaking up as scrap metal.

Arunta was taken under tow by the Japanese tug Tokyo Maru on 12 February 1969. On 13 February, the ship began to take on water; although there were attempts to stop the flooding, it was decided that recovery would be impossible, and Arunta was allowed to capsize and sink off Broken Bay.