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One Off Specials or 
Captured Submarines 
Ships 

Ship Pennant
No
Commissioned or Taken on Charge. Decommission/
Loss
Note:

Nautilus (1914)

?

31-Dec-1914 June 1922 Used mainly as a depot ship, 6th Flotilla, Portsmouth.  

Swordfish

?

18-March-1916 July-1922 Commissioned as a tender to HMS Dolphin. Converted to surface ship Swordfish July 1917, scrapped July 1922.

Nautilus (1931)

?

? ? HM North Polar Expeditionary Submarine Nautilus. 
Ice cutting submarine. Last details 1931. 

??

?

? ? ?

X1

?

? ? ?

Oberon

?

24-Sep-1926 ? Scrapped in August 1945 at Rosyth.

Porpoise

?

30-Aug-1932 19-January-1945 Lost.

??

?

? ? ?

??

?

? ? ?

Captured Submarines

Ship Pennant
No
Commissioned or Taken on Charge. Decommission/
Loss
Note:

N16

N16

? 1946 Ex U-1105. Type VIIo U-boat. Paid off, transferred 1946.

N19

N19

? Apr-1949 Ex U-1171. Type VIIo U-boat. Paid off, scrapped Apr-1949.

Meteorite

N25

? 1949 Ex U-1407. Type XVIIB U-boat commissioned 13-Mar-1945 and scuttled at Cuxhaven when Germany surrendered. Salvaged and refurbished at Vickers. Used as a trials boat to evaluate her Walther HTP (High Test Peroxide) turbine propulsion. Scrapped at Barrow 1949.

N27

N27

? 1946 Ex U-2529. Type XXI U-boat. Paid off, transferred 1946.

N28

N28

? 1945 Ex U-3035. Type XXI U-boat. Paid off, transferred 1945.

N29

N29

? 1945 Ex U-3041. Type XXI U-boat. Paid off, scrapped 1945.

N30

N30

? 1945 Ex U-3515. Type XXI U-boat. Paid off, transferred 1945.

N31

N31

? 1947 Ex U-2353. Type XXIII U-boat. Paid off, transferred 1947.

N35

N35

? 1946 Ex U-2326. Type XXIII U-boat. Paid off, transferred 1947.

Graph

N715, N46

? 1947 Ex U-570. Captured 28-Aug-1941 in the North Atlantic near Iceland. After repair commissioned into the Royal Navy. After evaluation was used operationally. Attacked U-333 in Oct-1942. Later used for anti-submarine training.  Went aground while under tow Mar-1944. Salvaged and scrapped 1947.

N65

N65

? 03-Dec-1945 Ex U-776. Type VIIc U-boat. Paid off, scuttled 03-Dec-1945.

U-1023

N83

? 07-Jan-1946. Ex U-1023. Type VIIc U-boat. Paid off, scuttled 03-Dec-1945.

U-249

N86

? Nov-1945 Ex U-249. Type VIIc U-boat. Paid off, scrapped Nov-1945.

U-86

 

? 1921 Ex U-86. Type VIIB U-boat. Paid off, foundered 1921.

U-126

 

? 1923 Ex U-126. Type IXC U-boat. Paid off scrapped 1923.

U-190

 

? 1945 Ex U-190. Type IXC U-boat. Paid off transferred 1945.

U-712

 

? 1950 Ex U-712. Type VIIc U-boat. Paid off, scrapped 1950.

U-795

 

? 1947 Ex U-795. Type XVIIC U-boat. Paid off scrapped 1947.

U-926

 

? 1947 Ex U-926. Type VIIc U-boat. Paid off, transferred 1947.

U-953

 

? 1949 Ex U-926. Type VIIc U-boat. Paid off, scrapped 1949.

U-995

 

? Oct-1948 Ex U-995. Type VIIc U-boat. Paid off, transferred Oct-1948.

U-1023

 

? 07-Jan-1946 Ex U-995. Type VIIc U-boat. Paid off, scuttled 07-Jan-1946.

U-1057

 

? 1945 Ex U-1057. Type VIIc U-boat. Paid off, transferred 1945.

U-1058

 

? 1945 Ex U-1058. Type VIIc U-boat. Paid off, transferred 1945.

U-1064

 

? 1945 Ex U-1064. Type VIIc U-boat. Paid off, transferred 1945.

U-1108

 

? 1949 Ex U-1058. Type VIIc U-boat. Paid off, scrapped 1949.

U-1202

 

? Jul-1947 Ex U-1064. Type VIIc U-boat. Paid off, transferred Jul-1947.

U-1231

 

? 1946 Ex U-1231. Type IXC U-boat. Paid off transferred 1946.

U-2518

 

? 1946 Ex U-2518. Type XXI U-boat. Paid off transferred 1946.

U-4706

 

? Oct-1948 Ex U-4706. Type XXIII U-boat. Paid off transferred Oct-1948.

P.611

P611

? 1942 One of four submarines ordered for the Turkish Navy Mar-1939, and similar to the British S Class. Requisitioned by the Admiralty on outbreak of WW2. Delivered to Turkey 1942 as Orucreis.

P.612

P612

? 1942 One of four submarines ordered for the Turkish Navy Mar-1939, and similar to the British S Class. Requisitioned by the Admiralty on outbreak of WW2. Delivered to Turkey 1942 as Muratreis.

P.614

P614

? 1946 One of four submarines ordered for the Turkish Navy Mar-1939, and similar to the British S Class. Requisitioned by the Admiralty on outbreak of WW2. Commissioned into the Turkish Navy 1946 as Burakreis.

P.615

P615

01-Nov-1940 (Launched) 18-Apr-1943 One of four submarines ordered for the Turkish Navy Mar-1939, and similar to the British S Class. Requisitioned by the Admiralty on outbreak of WW2. Was to be Ulucalireis. Torpedoed by U-123 off West Africa 18-Apr-1943.

P.711

P711

19-Jun-1940 (Captured) 1946 Ex Italian Navy submarine Galileo Galilei. Captured 19-Jun-1940. Repaired and commissioned into the Royal Navy as HMS X.2, later renamed Moonstone. Used for tests and evaluation. Scrapped 1946.

P.712

P712

09-Jul-1942 (Captured) 1954. Ex Italian Navy submarine Perla. captured in Eastern Mediterranean, 09-Jul-1942. After evaluation, transferred to the Greek navy as Matrozos. Scrapped 1954

P.714

P714

12-Jul-1943 (Captured) ? Ex Italian Navy submarine Bronzo, captured off Syracuse 12-Jul-1943. Manned by French Navy crews while operating with the Royal Navy and named Narval.
This page last edited - 27 January, 2013.

Copyright Ian M King, except where otherwise indicated.