sentences:  "Courser" was laid down as "YMS-201" on 28 August 1942 by the Hiltebrant Dry Dock Co. of Kingston, New York; launched 19 November 1942; and completed 24 July 1943.On 17 February 1947, "YMS-201" was reclassified as AMS-6, and named "Courser" the following day.