The six "Collins" class submarines are the most expensive items of equipment in the Australian Defence Force, with the estimated annual cost of operating and maintaining the class estimated at AU $100 million in 2000, and at AU $322 million in 2008.
The six "Collins" class submarines are the most expensive items of equipment in the Australian Defence Force. This was with the estimated annual cost of operating and maintaining the class. This class is estimated at AU $100 million in 2000. This class is estimated at AU at AU $322 million in 2008.