After the completion of the tests , America was sunk in a controlled scuttling on 14 May 2005 at approximately 11 : 30 .
The sinking was not publicized until six days later .
After the completion of the tests , America was sunk in a controlled scuttling on 14 May 2005 at approximately 11 : 30 , although the sinking was not publicized until six days later .