German submarine U-251

German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-251 had a displacement of {{convert|769|t|LT}} when at the surface and {{convert|871|t|LT}} while submerged.{{sfn|Gröner|1991|pp=43–46}} She had a total length of {{convert|67.10|m|ftin|abbr=on}}, a pressure hull length of {{convert|50.50|m|ftin|abbr=on}}, a beam of {{convert|6.20|m|ftin|abbr=on}}, a height of {{convert|9.60|m|ftin|abbr=on}}, and a draught of {{convert|4.74|m|ftin|abbr=on}}. The submarine was powered by two Germaniawerft F46 four-stroke, six-cylinder supercharged diesel engines producing a total of {{convert|2800 to 3200|PS|kW shp|-1}} for use while surfaced, two AEG GU 460/8–27 double-acting electric motors producing a total of {{convert|750|PS|kW shp}} for use while submerged. She had two shafts and two {{convert|1.23|m|ft|abbr=on|0}} propellers. The boat was capable of operating at depths of up to {{convert|230|m}}.{{sfn|Gröner|1991|pp=43–46}}

The submarine had a maximum surface speed of {{convert|17.7|kn}} and a maximum submerged speed of {{convert|7.6|kn}}.{{sfn|Gröner|1991|pp=43–46}} When submerged, the boat could operate for {{convert|80|nmi}} at {{convert|4|kn}}; when surfaced, she could travel {{convert|8500|nmi}} at {{convert|10|kn}}. U-251 was fitted with five {{convert|53.3|cm|in|0|abbr=on}} torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes, one 8.8 cm SK C/35 naval gun, 220 rounds, and two twin 2 cm FlaK 30 anti-aircraft guns. The boat had a complement of between forty-four and sixty.{{sfn|Gröner|1991|pp=43–46}}

After training with the 6th U-boat Flotilla, she became operational on 1 May 1942. U-245 was transferred to the 11th flotilla on 1 July and the 13th flotilla on 1 June 1943. There followed spells with the 24th, 21st and 31st flotillas, (see infobox for dates).

The boat's first patrol was preceded by a short trip between Kiel and Kristiansand in Norway. Her first sortie proper began with her departure from Kristiansand on 20 April 1942. The second part of this patrol was marked by sinking the Jutland south of Bear Island on 3 May after the ship had been hit by bombs from German aircraft. She then made three forays from Kirkenes, Skjomenfjord and Trondheim over the rest of May.

Her second patrol was also in May and covered the eastern Norwegian Sea.

The submarine sank the El Capitan on 17 July 1942 near northeast Iceland. This ship was with Convoy PQ 17 before being attacked by Luftwaffe Ju 88s. The ship had been abandoned; U-251 finished her off.

For the rest of her career, the U-boat patrolled northern waters; at one time steaming as far north and east as Novaya Zemlya in the Kara Sea.

By the time of her tenth sortie, the Allies dominated the air. This situation was dramatically demonstrated when the boat was sunk by rockets from no less than eight British and Norwegian Mosquitos of 143, 235 and 248 squadrons in the Kattegat on 19 April 1945.

Thirty-nine men died; there were four survivors.

U-251 took part in three wolfpacks, namely:

• Strauchritter (29 April – 5 May 1942)
• Eisteufel (21 June – 12 July 1942)
• Eisbär (27 March – 15 April 1943)

{{Reflist}}

{{Refbegin}}

• {{cite book | last1 = Busch | first1 = Rainer | last2 = Röll | first2 = Hans-Joachim | translator-last = Brooks | translator-first = Geoffrey | title = German U-boat commanders of World War II : a biographical dictionary | publisher = Greenhill Books, Naval Institute Press | location = London, Annapolis, Md | year = 1999 | isbn = 1-55750-186-6 }}
• {{cite book |last1=Busch |first1=Rainer |last2=Röll |first2=Hans-Joachim |title=Der U-Boot-Krieg, 1939-1945: Deutsche U-Boot-Verluste von September 1939 bis Mai 1945|trans-title=German U-boat losses from September 1939 to May 1945 |date=1999|volume=IV |publisher=Mittler|location=Hamburg, Berlin, Bonn |isbn=3-8132-0514-2 |url=https://books.google.com/books?id=vXKwAAAAIAAJ |language=de}}
• {{cite book |last1=Gröner |first1=Eric |last2=Jung |first2=Dieter |last3=Maass |first3=Martin |translator-last1=Thomas|translator-first1=Keith|translator-last2=Magowan|translator-first2=Rachel |title=German Warships 1815-1945: U-boats and Mine Warfare Vessels |date=1991 |publisher=Conway Maritime Press |location=London |volume=2 |isbn=0-85177-593-4 |url=https://books.google.com/books?id=Udg-0AEACAAJ|ref=CITEREFGröner1991}}
• {{cite book

|last=Kemp

|first=Paul

|title=U-Boats Destroyed – German Submarine Losses in the World Wars

|location=London

|year=1999

|publisher=Arms & Armour

|isbn=1-85409-515-3

}}

{{Refend}}

• {{Cite web

|url=http://uboat.net/boats/u251.html

|title=The Type VIIC boat U-251

|last=Helgason

|first=Guðmundur

|website=German U-boats of WWII – uboat.net

|access-date=26 December 2014

}}

• {{cite web

|url=http://www.u-boot-archiv.de/dieboote/u0251.html

|title=U 251

|last=Hofmann

|first=Markus

|website=Deutsche U-Boote 1935-1945 – u-boot-archiv.de

|language=de

|access-date=26 December 2014

}}

{{German Type VII submarines}}

{{April 1945 shipwrecks}}

{{coord missing|Baltic Sea}}

{{DEFAULTSORT:U0251}}

Category:World War II submarines of Germany

Category:German Type VIIC submarines

Category:U-boats commissioned in 1941

Category:1941 ships

Category:Ships built in Bremen (state)

Category:U-boats sunk by British aircraft

Category:U-boats sunk by Norwegian aircraft

Category:World War II shipwrecks in the Kattegat

Category:U-boats sunk in 1945

Category:Maritime incidents in April 1945