Name Laid down Launched Commissioned Decommissioned O 21 20 November 1937 21 October 1939 10 May 1940 (uncompleted) 2 November 1957 O 22 20 November 1937 20 January 1940 10 May 1940 (uncompleted) 8 November 1940 O 23 12 October 1937 5 December 1939 13 May 1940 (uncompleted) 1 December 1948 O 24 12 November 1937 18 March 1940 13 May 1940 (uncompleted) 22 February 1954 O 25 Commissioned as: UD-3 10 April 1939 1 May 1940 8 June 1941 13 October 1944 3 May 1945 (scuttled) O 26 Commissioned as: UD-4 20 April 1939 23 November 1940 28 January 1941 3 May 1945 (scuttled) O 27 Commissioned as: UD-5 3 August 1939 1941 30 January 1942 13 July 1945 (Dutch navy) 14 November 1959