I think @Sandhi Yudha does realise that they have been cancelled and meant there will now be a delay to the entire Submarine build program which with the Attack SSGs was expected around 2033-34 for the first Sub. PM Morrison said in a Pressor a couple of hours ago it would be towards the end of next decade before we see the first SSN and the Collins are expected to serve for decades to come.This is not just a delay. It’s the cancellation of the existing Naval Group’s contract with penalties to be paid and the start of a new SSN program — that is not going to be for a fleet of 12. The Collins class will be kept in RAN service with another deep maintenance cycle.
The RAN can’t hire enough crew for 12 SSNs and they will struggle to train and crew 8 to 9 boats. With nuclear power, they don’t need so many boats.