The latest salvo in the national debate about how best to spread the risks and benefits of the $300-billion naval shipbuilding plan is whether full-cycle docking of the Collins-class submarines should move from South Australia to Western Australia. It’s an important decision.
The Collins fleet is based in Perth. Although the boats were built by ASC in Adelaide, their ongoing sustainment involves four-yearly mid-cycle dockings that take place at HMAS Stirling and the Henderson shipyard in Western Australia. ASC has a total workforce of around 2,200 with around 280 positions in WA to do routine and mid-cycle sustainment work. Major full-cycle dockings are required every eight to 10 years. They take two years to complete and can involve cutting open the submarine for a ground–up ‘nuts and bolts’ rebuild of hardware and systems. They are currently returned to the manufacturer, ASC at its Adelaide shipyard, where a highly skilled workforce reinvents each submarine.
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