Replacement for older Australian patrol boats
The Armidale class was built by Austal to give the Royal Australian Navy a larger and more capable patrol boat.
The Armidale class was developed to modernize Australia's patrol boat force after the Fremantle-class era. Austal's commissioning release for HMAS Armidale emphasized the larger physical presence and improved capability of the new class, while the Australian Department of Defence later framed the class through two decades of service. The program reflected Australia's need for persistent maritime border and offshore-resource patrols across a large operating area.



