Pennant number Name Shipyard Laid down Launched Com- missioned Decom- missioned fate S180 U-1 Howaldtswerke 8 June 1960 2 October 1961 20 March 1962 22 June 1963 S181 U-2 Howaldtswerke 1 September 1960 25 January 1962 3 May 1962 15 August 1963 broken up S182 U-3 Howaldtswerke 12 October 1960 7 May 1962 20 June 1964 15 September 1967 sunk in trials 1971