German submarine U-735

U-Boat Infobox
type=VIIC
fieldpost number=
yard number=
order date=
keel=November 29, 1941
launch=October 10, 1942
commission=December 28, 1942
yard=Schichau, Danzig
U-Boat Patrol
startdate=Start Date
enddate=End Date
assigned unit=Assigned Unit
U-Boat Patrol
startdate=No Patrols
enddate=
assigned unit=8th FlotillaU-Boat Patrol
startdate=No Patrols
enddate=
assigned unit=11th FlotillaU_Boat Command
startdate=December, 1942
enddate=December, 1944
name=Kptlt. Hans-Joachim Börner
U_Boat Sink
type=Type of Ship Sunk
total=Number of Ships Sunk
tonnage=Gross Registered Tonnage
U_Boat Sink
type=Commercial Vessels
total=None
tonnage=0
U_Boat Sink
type=Military Vessels
total=None
tonnage=0

U-735 was a German submarine built during World War II for service as a training boat preparing U-boat crew for service in the Atlantic Ocean. Her home base was Horten in Norway, from which she operated on short coastal patrols, practising in fijords and channels for submarine warfare. A type VIIC U-boat, "U-735" was very useful for preparing sailors and officers for service in modern boats, as opposed to the new models usually used in training.

Commissioned at Christmas 1942 in Danzig after an exceptionally long building period, "U-735" was given to Kptlt Hans-Joachim Börner, who remained in command of the boat right up to her destruction exactly two years later, when he was killed on board his ship. Dispatched to Norway, Börner soon became an expert on the Norwegian seaways, and was able to train a large number of sailors on his practice missions from Horten.

On the 28 December 1944, Royal Air Force Bomber Command sought to eradicate the menace of submarines sailing from Norwegian bases, and launched a major raid on Horten. "U-735" was anchored in the naval harbour at Horten. When the air raid alarm came at 21.30, "U-735" eventually succeeded in leaving the harbour, having had trouble starting her diesels. At 23.30 NE of Horten she caught the full force of a bomb, sinking just outside the harbour, south of Mølen Island, with 26 men killed and ten missing, including her captain. Only one crew member survived, plus ten crewmembers who were on leave in Horten. She was the only U-boat to be lost in the attack. The wreck was rediscovered by a Royal Norwegian Navy subsea surveillance ship, KNM "TYR" in 1999. A high-resolution SAS-image of the wreck made the cover of Sea Technology Magazine in june 2006 [http://www.simrad.co.uk/ks/web/nokbg0239.nsf/AllWeb/357F5BDF94329B0BC12571B6003200E5?OpenDocument] . Two other ships were also sunk in the air attack: "M/T Holmengraa" and "Nordvard".

References

* Sharpe, Peter, "U-Boat Fact File", Midland Publishing, Great Britain: 1998. ISBN 1-85780-072-9.
* [http://www.uboat.net/boats/u735.htm U-boat.net webpage for "U-735"]
* [http://www.dhm.de/lemo/forum/kollektives_gedaechtnis/382/index.html "Memories from "U-735", sole survivor] See Also: List of U-boats