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HMAS Farncomb had been due to be retired this year, but is now expected to operate until about 2036 Follow our Australia news live blog for latest updates Get our breaking news email , free app or daily news podcast Taxpayers will fork out an extra $11bn to extend the lifespan of Australia’s ageing Collins-class submarines for another decade, bridging the capability gap before the scheduled arrival of the first Aukus vessels in 2032. Originally designed to have a 30-year working life, the six Adelaide-built submarines have already been operational for between 23 and 30 years. The Albanese government announced in 2024 that it would undertake so-called “life of type extension” works to keep the six Collins class boats in the water for an additional 10 years.