HMAS Sheean (front left), HMAS Collins (front right), HMAS Sirius (back left) and ex-HMAS Westralia at HMAS Stirling in 2006
Australia’s most recently retired navy chief warns the country’s ageing Collins Class submarine fleet will become easier to detect in an increasingly crowded maritime neighbourhood because they need to surface more frequently than nuclear-powered boats, the ABC’s Andrew Greene writes.
