Preliminary Sizing of Multi-role Autonomous Ships for the Royal Australian Navy

Gabrielle Anastasio


Autonomous ships are being introduced in situations which are hazardous, high risk, or expensive from a fiscal, time or personnel perspective. Reductions in cost during the build and through-life stages can be brought about by producing a smaller vessel by removing the human related compartments and leaving only the aspects required for the vessel to function in an unmanned and/or autonomous capacity. Utilising the Concept Exploration Program, the particulars of a reduced size ‘autonomous’ version of the ANZAC Class have been determined whilst maintaining the majority of the ANZAC’s capabilities such as ship speed, range and payload. The reduced size dimensions were determined to be approximately 2195 tonnes displacement (40% reduction from original vessel) and 95 m waterline length (15% reduction). Also investigated is the additional payload afforded by the removal of human related compartments, symbolising weapons and equipment, which could be carried by the vessel; allowing double the current armament to be carried. These values have been compared to a compartment layout analysis and steel weight and resistance calculations to provide a preliminary estimate of the particulars of an autonomous ANZAC Class Ship.

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