Armidale-class patrol boat

The Armidale class was a class of patrol boats built for the Royal Australian Navy (RAN). Planning for a class of vessels to replace the fifteen Fremantle-class patrol boats began in 1993 as a joint project with the Royal Malaysian Navy, but was cancelled when Malaysia pulled out of the process. The project was reopened in 1999 under the designation SEA 1444, with the RAN as the sole participant. Of the seven proposals tendered, the Austal/Defence Maritime Services (DMS) proposal for twelve vessels based on an enlarged Bay-class patrol boat was selected. Two additional boats were ordered in 2005 to provide a dedicated patrol force for the North West Shelf Venture.
All fourteen vessels were constructed by Austal at Henderson, Western Australia. The first vessel, HMAS Armidale, was commissioned into the RAN in June 2005, and the last, HMAS Glenelg, entered service in February 2008. The Armidale-class ships were operated by the Australian Patrol Boat Group, and based in Cairns and Darwin. They were primarily tasked with border protection, fisheries patrols, and the interception of unauthorised arrivals by sea. The Armidales were longer and heavier than their Fremantle-class predecessors...