SM UB-48 was a German Type UB III submarine or U-boat in the German Imperial Navy () during World War I. It was commissioned into the German Imperial Navy on 11 June 1917 as SM UB-48.
The submarine conducted nine patrols and sank 35 ships during the war for a total loss of and one destroyer. It operated as part of the Pola Flotilla and later the II Mediterranean U-boat Flotilla based in Cattaro. UB-48 was one of the most successful U-boats serving in the Mediterranean. The boat was assigned the number in the Austro-Hungarian Navy. It was scuttled in Pola after the surrender of Austria-Hungary on 28 October 1918.
Construction
UB-48 was ordered by the GIN on 20 May 1916 and built by Blohm & Voss of Hamburg. Following less than a year of construction, it was launched at Hamburg on 6 January 1917. UB-48 was commissioned later that same year under the command of Wolfgang Steinbauer. Like all Type UB III submarines, UB-48 carried ten torpedoes and was armed with a deck gun. UB-48 would carry a crew of up to 3 officer and 31 men and had a cruising range of . UB-48 had a displacement of while surfaced and when submerged. Her engines enabled her to travel at when surfaced and when submerged.
Summary of raiding history
+Ships sunk or damaged by SM UB-48 Date Name Nationality TonnageMerchant ship tonnages are in gross register tons. Military vessels are listed by tons displacement. FateRoanoke4,803Sunk HMS Prize199SunkKongsli5,826SunkSerra Do Marco74SunkSerra Do Pilar65SunkWinlaton3,270SunkHathor3,823SunkImera1,172SunkCitta Di Bari1,489SunkNiki511SunkValparaiso4,930SunkPera7,635SunkCollegian7,520SunkGlenbridge3,845DamagedDowlais3,016SunkGerasimos3,845SunkConsols3,756SunkVolonta Di Dio43SunkHarlaw821SunkCelia5,004SunkEdilio4,719SunkNewminster Abbey3,114SunkAboukir3,660SunkSturton4,406SunkUpada5,257DamagedLeopold D’or2,300SunkRomany3,983SunkSaint Jean287DamagedKingstonian6,564SunkHMT Dalkeith748SunkMonte Bianco988DamagedHMT Moose208DamagedFranklyn4,919SunkTyler3,928SunkClan Ross5,971DamagedSan Antonio389SunkChristophero Colombo264SunkNivernais2,555SunkPenhallow4,318SunkBalkan1,709SunkNordboen2,417SunkBaron Minto4,537DamagedMonviso4,020DamagedVoltaire18,400Damaged
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