On 4 March 1942 , HMAS Tambar was fired on and hit by the Examination Battery at Fort Cowan Cowan , Moreton Island .
Tambar was requisitioned by the RAN and commissioned as an auxiliary minesweeper .
On 4 March 1942 , Tambar   was fired on and hit by the Examination Battery at Fort Cowan Cowan , Moreton Island .
Tambar was requisitioned by the RAN and commissioned as an auxiliary minesweeper .