The Collins Class Submarine Among the Largest Conventional Submarines in the World


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With a surfaced displacement of 3050 tonnes and 3350 tonnes sub-merged, the Saab Kockums Collins class submarines are among the largest and most advanced and efficient conventional submarines in the world.

First of class, the HMAS Collins was launched in 1993 and delivered to the Royal Australian Navy (RAN) in May 1996. In all, six  Collins class submarines were delivered between 1996 and 2001.



Australia's Collins class sub-marines are long-range, multi-purpose patrol submarines capable of both short duration coastal missions, and long-duration open sea defensive and offensive operations.

The submarines have a patrol endurance of more than two months, most of the time submerged.


The Collins has all attributes expected of a state-of-the-art submarine, including a high manoeuvrability, low signature patterns, high firing rates, and excellent shock endurance. They are also adapted to the specific environmental conditions and operational profiles applicable to Royal Australian Navy.