All six Collins-class submarines are planned to receive the extension. ASC, the government’s sovereign submarine sustainment partner, will remain responsible for delivering the programme.
The government said Defence will apply a conditions-based sustainment approach, informed by independent expert advice, detailed planning and industry engagement. The approach will retain and restore base components while continuing to upgrade critical weapons and systems.
According to the government, this will reduce engineering and schedule risks and keep the Collins class as a capable deterrent for years to come. HMAS Farncomb, one of the oldest submarines in the class and the boat with the highest number of sea days and distance travelled, will undergo a detailed engineering assessment to tailor its upgrades and inform work across the fleet.
The programme will also accelerate and prioritise sustainment work on the youngest submarines in the fleet, beginning with HMAS Rankin. The government said safety will not be compromised during the life-extension effort.
Australia plans to invest up to AUD11 billion over the next decade in Collins-class sustainment, including life-of-type extension maintenance, workforce development and infrastructure. Defence industry sites at Osborne in South Australia and Henderson in Western Australia will remain central to sustaining the fleet.
In 2024, the government listed the Collins-class submarine capability as a Product of Concern to increase ministerial oversight and management. The government said that designation is driving improvements in process and productivity across Defence and industry.
Deputy Prime Minister Richard Marles said: “These decisions reaffirm the Albanese Government’s commitment to keeping the Collins class a potent and highly capable strike and deterrent capability today, and for years to come.”
“Extending the life of all six Collins class submarines is critical to maintaining that edge as we transition the Navy from conventional to nuclear-powered submarines,” Marles added.
Minister for Defence Industry Pat Conroy said: “The Collins life of type extension is a critical capability decision and a major investment in Australia’s sovereign defence industrial base and submarine supply chain.”
“Strong collaboration with Defence industry partners will be essential to keeping the Collins class fleet available as we move towards a nuclear-powered submarine capability,” Conroy added.
