Preceded by:
T-class (1938)Succeeded by:
P611-class (1941)Ship | Code | Builder | Laid | Launch | Comm | Decomm | Fate | ||
U-class (I): | |||||||||
Undine † | 48C | Vickers-Armstrong | 19/02/1937 | 05/10/1937 | 21/08/1938 | 07/01/1940 | † | Loss by surface ship | |
Unity † | 66C | Vickers-Armstrong | 19/02/1937 | 16/02/1938 | 05/10/1938 | 29/04/1940 | † | Loss in collision | |
Ursula | 65C | Vickers-Armstrong | 19/02/1937 | 16/02/1938 | 20/12/1938 | 30/05/1944 | Transferred | ||
U-class (II): | |||||||||
Umpire † | N82 | Chatham DYd | 01/01/1940 | 30/12/1940 | 10/07/1941 | 19/07/1941 | † | Loss in collision | |
Una | N87 | Chatham DYd | 07/05/1940 | 10/06/1941 | 27/09/1941 | 08/1943 | Sold/Scrapped | ||
Unbeaten † | N93 | Vickers-Armstrong | 22/11/1939 | 09/07/1940 | 10/11/1940 | 11/11/1942 | † | Loss by aircraft | |
Undaunted † | N55 | Vickers-Armstrong | 02/12/1939 | 20/08/1940 | 30/12/1940 | 13/05/1941 | † | Loss, unknown cause | |
Union † | N56 | Vickers-Armstrong | 09/12/1939 | 01/10/1940 | 22/02/1941 | 20/07/1941 | † | Loss by torpedo | |
Unique † | N95 | Vickers-Armstrong | 30/10/1939 | 06/06/1940 | 27/09/1940 | 23/10/1942 | † | Loss, unknown cause | |
Upholder † | N99 | Vickers-Armstrong | 30/10/1939 | 08/07/1940 | 31/10/1940 | 14/04/1942 | † | Loss, unknown cause | |
Upright | N89 | Vickers-Armstrong | 06/11/1939 | 21/04/1940 | 03/09/1940 | 19/12/1945 | Sold/Scrapped | ||
Sokół | N97 | Vickers-Armstrong | 09/12/1939 | 30/09/1940 | 28/01/1941 | 27/07/1945 | Returned | ||
Urge † | N17 | Vickers-Armstrong | 30/10/1939 | 19/08/1940 | 12/12/1940 | 28/04/1942 | † | Loss, unknown cause | |
Usk † | N65 | Vickers-Armstrong | 06/11/1939 | 07/06/1940 | 11/10/1940 | 28/04/1941 | † | Loss by mine | |
Utmost † | N19 | Vickers-Armstrong | 02/11/1939 | 20/04/1940 | 17/08/1940 | 24/11/1942 | † | Loss by depth charges | |
P32 † | P32 | Vickers-Armstrong | 30/04/1940 | 15/12/1940 | 03/05/1941 | 18/08/1941 | † | Loss, unknown cause | |
P33 † | P33 | Vickers-Armstrong | 18/06/1940 | 28/01/1941 | 30/05/1941 | 23/08/1941 | † | Loss by mine | |
P34 / Ultimatum | P34 | Vickers-Armstrong | 19/06/1940 | 11/02/1941 | 29/07/1941 | 23/12/1949 | Sold/Scrapped | ||
P35 / Umbra | P35 | Vickers-Armstrong | 19/07/1940 | 15/03/1941 | 02/09/1941 | 27/06/1945 | Sold/Scrapped | ||
P36 † | P36 | Vickers-Armstrong | 26/07/1940 | 28/04/1941 | 24/09/1941 | 01/04/1942 | † | Loss by aircraft | |
P37 / Unbending | P37 | Vickers-Armstrong | 30/08/1940 | 12/05/1941 | 05/11/1941 | 23/12/1949 | Sold/Scrapped | ||
P38 † | P38 | Vickers-Armstrong | 02/09/1940 | 09/07/1941 | 17/10/1941 | 23/02/1942 | † | Loss by torpedo | |
P39 † | P39 | Vickers-Armstrong | 14/10/1940 | 23/08/1941 | 16/11/1941 | 26/03/1942 | † | Loss by aircraft | |
Uredd † | P41 | Vickers-Armstrong | 15/10/1940 | 24/08/1941 | 12/12/1941 | 24/02/1943 | † | Loss by mine | |
P42 / Unbroken | P42 | Vickers-Armstrong | 30/12/1940 | 04/11/1941 | 29/01/1942 | 26/06/1944 | Transferred | ||
P43 / Unison | P43 | Vickers-Armstrong | 30/12/1940 | 05/11/1941 | 05/02/1942 | 26/06/1944 | Transferred | ||
P44 / United | P44 | Vickers-Armstrong | 25/02/1941 | 18/12/1941 | 02/04/1942 | 12/02/1946 | Sold/Scrapped | ||
P45 / Unrivalled | P45 | Vickers-Armstrong | 12/05/1941 | 16/02/1942 | 03/05/1942 | 31/07/1945 | Sold/Scrapped | ||
P46 / Unruffled | P46 | Vickers-Armstrong | 25/02/1941 | 19/12/1941 | 09/04/1942 | 01/1946 | Sold/Scrapped | ||
Dolfijn | P47 | Vickers-Armstrong | 19/11/1941 | 27/07/1942 | 08/10/1942 | 12/1946 | Sold/Scrapped | ||
P48 † | P48 | Vickers-Armstrong | 02/08/1941 | 15/04/1942 | 18/06/1942 | 25/12/1942 | † | Loss by depth charges | |
P49 / Unruly | P49 | Vickers-Armstrong | 19/11/1941 | 28/07/1942 | 03/11/1942 | 02/1946 | Sold/Scrapped | ||
P51 / Unseen | P51 | Vickers-Armstrong | 30/07/1941 | 16/04/1942 | 02/07/1942 | 01/11/1945 | Sold/Scrapped | ||
Dzik | P52 | Vickers-Armstrong | 30/12/1941 | 11/10/1942 | 16/12/1942 | 25/07/1947 | Transferred | ||
P53 / Ultor | P53 | Vickers-Armstrong | 30/12/1941 | 12/10/1942 | 31/12/1942 | 14/08/1945 | Sold/Scrapped | ||
P54 / Unshaken | P54 | Vickers-Armstrong | 12/06/1941 | 17/02/1942 | 21/05/1942 | 03/1946 | Sold/Scrapped | ||
P55 / Unsparing | P55 | Vickers-Armstrong | 11/08/1941 | 28/07/1942 | 29/11/1942 | 14/02/1946 | Sold/Scrapped | ||
Usurper † | P56 | Vickers-Armstrong | 18/09/1941 | 24/09/1942 | 02/02/1943 | 03/10/1943 | † | Loss by depth charges | |
Universal | P57 | Vickers-Armstrong | 05/09/1941 | 10/11/1942 | 08/03/1943 | 02/1946 | Sold/Scrapped | ||
Untamed / Vitality | P58 | Vickers-Armstrong | 09/10/1941 | 08/12/1942 | 14/04/1943 | 08/1945 | Sold/Scrapped | ||
Untiring | P59 | Vickers-Armstrong | 23/12/1941 | 20/01/1943 | 09/06/1943 | 25/07/1945 | Transferred | ||
Varangian | P61 | Vickers-Armstrong | 23/12/1941 | 04/04/1943 | 10/07/1943 | 06/1949 | Sold/Scrapped | ||
Uther | P62 | Vickers-Armstrong | 31/01/1942 | 06/04/1943 | 15/08/1943 | 02/1950 | Sold/Scrapped | ||
Unswerving | P63 | Vickers-Armstrong | 17/02/1942 | 19/07/1943 | 03/10/1943 | 10/07/1949 | Sold/Scrapped | ||
Vandal † | P64 | Vickers-Armstrong | 17/03/1942 | 23/11/1942 | 20/02/1943 | 24/02/1943 | † | Loss, unknown cause | |
Upstart | P65 | Vickers-Armstrong | 17/03/1942 | 24/11/1942 | 03/04/1943 | 03/1945 | Transferred | ||
Ula | P66 | Vickers-Armstrong | 01/11/1942 | 22/01/1943 | 03/04/1943 | 12/1965 | Sold/Scrapped | ||
Curie | P67 | Vickers-Armstrong | 29/04/1942 | 23/01/1943 | 02/05/1943 | 07/1946 | Returned | ||
P97 | P97 | Vickers-Armstrong | 09/12/1939 | 30/09/1940 | 27/07/1945 | 12/1948 | Sold/Scrapped |
Ship | Code | Former | Code | Comm | Decomm | Fate | |||
U1 / Springeren | U1 | Dzik | P52 | 25/07/1947 | 10/1957 | Returned, scrapped | |||
Xifias | Y10 | Untiring | P59 | 25/07/1945 | 1952 | Returned, sunk as target | |||
Amfitriti | Y11 | Upstart | P65 | 03/1945 | 1952 | Returned, sunk as target | |||
V-2 | P42 / Unbroken | P42 | 26/06/1944 | 1949 | Returned, scrapped | ||||
V-3 | P43 / Unison | P43 | 26/06/1944 | 1949 | Returned, scrapped | ||||
V-4 | Ursula | 65C | 30/05/1944 | 1950 | Returned, scrapped | ||||
P67 | P67 | Curie | P67 | 07/1946 | 05/1949 | Sold/Scrapped |