I believe that ASC, Austal, Civmec and BAE all have facilities at the AMC in Henderson WA in addition to Luerssen Australia, however there has not been word on who will be doing what following the new "plans".
When I look at the satellite imagery of the AMC, I am uncertain which companies/facilities could really be adequate to build frigates TBH, though I am uncertain just how current/accurate the satellite image is. What I measured the buildings which I assume are build halls, Civmec's is ~204 m but does not appear to have a clear path to transport a completed hull into the water. ASC West has what might be a ~110m build hall and a potential route to water. The next largest one belongs to Austal but that is only ~105 m and then there are two others, one belonging to BAE Australia and the other I have not been able to identify, but both of these appear to be less than 100 m in length.
I do recall an announcement by Morrison that a large drydock would be started in ~2023 in Henderson, but the completion date for that IIRC is not until 2030. This makes it look like facility/infrastructure work needs to be carried out before a facility in WA could engage in frigate construction, as well as the need to have a skilled shipyard workforce established there which is capable of doing such work.
The BAE and ASC facilities are set up for maintenance. BAE does all the out of water work for the ANZACs and it is an open air hard stand, so weather exposed. ASC does the mid cycle dockings for the Collins in an enclosed shed. There is a lift at each yard (BAEs is 8,000 tonne and the AMC common use one is 12,000 tonne). Both teams are repairers, not builders.
Austal has a series of smaller sheds designed for small ferry and patrol boat builds. Note these are far too small for anything bigger. It has the best ship building crew and competence on the strip, but is hamstrung by its small facilities (note it has bigger yards overseas). Austal has been given a strategic partnership with the Federal Government, which provides it a monopoly for all WA small ship projects (patrol boats and landing craft at the moment). Most importantly, Austal's design team are located here, including for the LCS program. Consider it the brains on the strip.
Civmec has the biggest sheds and the best heavy industrial facility. Their main shed on the south can fit two AWD sized vessels in the mid bay side by side, and the Arafuras would easily fit in the side bays. It's massive and fully digital. Of note, Civmec caters predominantly for the offshore oil and gas, and mining sectors, so Defence is a smaller part of their portfolio. They have very good fabrication/welding capabilities, but limited design. They have access to the CUF ship lift, but note that the CUF wheeled carriers limit movements to 4,500 tonnes. If Austal is the brains, then Civmec is the muscle.
There is also what is known as the Common User Facility, which is owned by the state government. It covers most of the wharf and laydown areas on the southern end. The above 12,000 tonne ship lift is part of it, and a future graving dock would likely form part of this facility. A decision on the graving dock has not yet been made, but there is plenty of discussion. Extending the above metaphore, the CUF is the torso, linking all the individual areas together and providing essential shared services.
With the advent of the eventual Virginia and AUKUS submarines, including the home basing of US and UK vessels in the near future, it is expected that Huntington Ingalls and Babcock will need some space, either in Henderson or on Garden Island (or both). The two have announced a partnership, and the WA Government has released some MOUs, but there are few details at the moment. I would view that any graving dock will be considered as part of what they need.
A graving dock would also allow all the big ships to be maintained (Hunters, oilers etc), as well as American ships such as Burkes.
In regards to consolidation, I would suggest the following is likely to happen:
- Austal will be the lead builder for any future GP frigate and LOCSV and would work with the winning designer.
- Austal will either upgrade their own facilities with new large sheds (less likely), or subcontract Civmec (more likely) for the construction in conjunction with their own workers.
- BAE will remain as is and will continue with all WA ship docking maintenance. It is sized to maintain GP frigates and LOCSV's but Hunters (if any are WA based) will go to the proposed dry dock.
- The CUF will continue to expand and encompas the future graving dock.
- ASC will continue through until the end of the Colins. I am not sure this facility works for nuclear boats (too small and probably lacks the nuclear support infrastructure). I think that will transfer to a graving dock, with the existing facility demobilised.
- Huntington, Babcock and ASC will need to work out their respective roles for subs.