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BRP ''Ivatan'' (AT-298) is a ''Balikpapan''-class heavy landing craft operated by the Philippine Navy. One of eight vessels built by Walkers Limited for the Royal Australian Navy (RAN), the ship was commissioned into Australian service in 1973 as HMAS ''Brunei'' (L 127). During her RAN career, ''Brunei'' (named after the amphibious landings at Brunei Bay during the World War II Battle of North Borneo) visited Lord Howe Island, was deployed post-Cyclone Tracy as part of Operation Navy Help Darwin, performed coastal surveys of northern Australia and Papua New Guinea, and served as part of the INTERFET peacekeeping taskforce. ''Brunei'' was decommissioned from Australian service in 2014. The ship was refurbished and donated to the Philippine Navy, commissioning as BRP ''Ivatan'' (named after the Itavan ethnic group) in 2015. ==Design and construction== (詳細はAustralian Army's LSM-1-class landing ship medium and ALC 50 landing craft.〔Gillett, ''Australian and New Zealand Warships since 1946'', pgs 79, 125〕 They are long, with a beam of , and a draught of .〔Wertheim (ed.), ''The Naval Institute Guide to Combat Fleets of the World'', p. 26〕 The landing craft have a standard displacement of 316 tons, with a full load displacement of 503 tons.〔 They are propelled by two G.M. Detroit 6–71 diesel motors, providing 675 brake horsepower to the two propeller shafts, allowing the vessels to reach .〔 The standard ship's company is 13-strong.〔 The ''Balikpapan''s are equipped with a Decca RM 916 navigational radar, and fitted with two machine guns for self-defence.〔 The LCHs have a maximum payload of 180 tons; equivalent to 3 Leopard 1 tanks, 13 M113 armoured personnel carriers 23 quarter-tonne trucks, or four LARC-V amphibious cargo vehicles.〔〔Gillett, ''Australian and New Zealand Warships since 1946'', p. 79〕 As a troop transport, a ''Balikpapan''-class vessel can transport up to 400 soldiers between a larger amphibious ship and the shore, or embark 60 soldiers in six-berth caravans for longer voyages.〔 The vessel's payload affects the range: at 175 tons of cargo, each vessel has a range of , which increases to with a 150-ton payload, and when unladen.〔 The flat, box-like keel causes the ships to roll considerably in other-than-calm conditions, limiting their ability to make long voyages.〔 The ship was laid down by Walkers Limited at Maryborough, Queensland on 9 August 1971, launched on 8 October 1971, and commissioned into the RAN as HMAS ''Brunei'' on 5 January 1973.〔Swinden, ''Heavy Lifting for Four Decades'', p. 20〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「HMAS Brunei (L 127)」の詳細全文を読む スポンサード リンク
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