HMAS Collins (SSG 73) is the lead vessel of the six-submarine Collins class operated by the Royal Australian Navy (RAN). Named for Vice Admiral Sir John Augustine Collins, Collins was laid down in February 1990, and was the only submarine of the class to be partially constructed by Kockums' Malmo shipyard. The boat was launched in August 1993, but was not completed until ten months later. Numerous problems with the class were exposed by the lengthy sea trials period undertaken by the boat; Collins was not commissioned into the RAN until mid-1996, eighteen months behind schedule, and the submarine was not cleared for operational deployments until 2000.