HMAS Sirius

Delos was built at Hyundai Mipo Dockyard in South Korea. Another five ships were built to the same design, all for civilian service. Delos was leased (bareboat charter) to Teekay Shipping for operation as a commercial oil tanker until September 2005, then was taken up by Tenix Defence (which had been awarded the A$60 million conversion contract on 15 March 2005) for conversion into a replenishment vessel, which was completed 5 weeks ahead of schedule. While HMAS Sirius is the first ship of this name to serve as part of the RAN, she is named after , the flagship of the First Fleet of British convicts sent to Australia in 1788. The decision to instead purchase an under-construction civilian tanker and modify her for military service allowed Sirius to enter service three years before originally planned, at half the acquisition project's planned cost. ==Operational history==

On the morning of 13 March 2009, Sirius was one of seventeen warships involved in a ceremonial fleet entry and fleet review in Sydney Harbour, the largest collection of RAN ships since the Australian Bicentenary in 1988. Sirius did not participate in the fleet entry, but was anchored in the harbour for the review. In 2010, Sirius was approved to carry and deploy boarding parties. This capability was tested during Exercise Kakadu 10, along with the ship's first ever dual replenishment. The tanker completed a six-month maintenance period in Sydney on 16 September 2014; she spent five months of this period out of the water in the Captain Cook Graving Dock. HMAS Sirius joined , , and on their way to Pearl Harbor, Hawaii in preparation for RIMPAC 2020 on 6 August 2020. RIMPAC 2020 began on 17 August. ==End of service==

can be seen, also to be scrapped. Sirius was originally expected to remain in service for approximately 15 years. The 2013 Defence White Paper stated that the replacement of Sirius and would be brought forward. As well as building replacement vessels (either in Australia, overseas, or a combination), leasing existing vessels was also to be considered. Spanish shipbuilder Navantia is offering the design, while South Korea's DSME is proposing the downsized Aegir variant of the . The 20,000+ tonne ships will be built overseas, as they will be too large to build in Australian shipyards. The ship was commissioned on 10 April 2021 at Fleet Base East, Sydney. In September 2021 Sirius embarked on her final deployment to South-East Asia and the south-west Pacific prior to her decommissioning in December 2021. She was decommissioned at a ceremony at HMAS Stirling on 18 December 2021. ==See also==