Construction of the prototype  did not go ahead, but the plans were retained. The need for locally built 'all-rounder' vessels at the start of World War II saw the "Australian Minesweepers" (designated as such to hide their anti-submarine capability, but popularly referred to as "corvettes") approved in September 1939, with 60 constructed during the course of the war: 36 ordered by the RAN, 20 (including Ballarat) ordered by the British Admiralty but manned and commissioned as RAN vessels, and 4 for the Royal Indian Navy.
Development of the prototype was not pursued, but the plans were kept. The requirement for locally constructed versatile warships at the beginning of World War II led to the approval of "Australian Minesweepers" (designated as such to conceal their anti-submarine capabilities, but commonly referred to as "corvettes") in September 1939, with 60 built during the course of the war: 36 ordered by the RAN, 20 (including Ballarat) ordered by the British Admiralty but manned and commissioned as RAN vessels, and 4 for the Royal Indian Navy.