SM UB-50
{{Short description|German Type UB III submarine}}
{{Other ships|German submarine U-50}}
| {{Infobox ship begin}}
{{Infobox ship image |Ship image=UB 148 at sea 2.jpeg |Ship caption=UB-148 at sea, a U-boat similar to UB-50. }} {{Infobox ship career |Ship country=German Empire |Ship flag={{Shipboxflag|German Empire|naval}} |Ship name=UB-50 |Ship ordered=20 May 1916{{cite Uboat.net |name=UB 50 |id=UB+50 |type=1sub |access-date=29 April 2010 }} |Ship builder=Blohm & Voss, Hamburg |Ship original cost= 3,276,000 German Papiermark |Ship yard number=295 |Ship laid down= |Ship launched=6 January 1917 |Ship completed= |Ship commissioned=12 July 1917 |Ship fate=Surrendered 16 January 1919; broken up at Swansea{{sfn|Gröner|1991|pp=25–30}} }} {{Infobox ship characteristics |Hide header= |Header caption={{sfn|Gröner|1991|pp=25–30}} |Ship class=Type UB III submarine |Ship displacement=*{{convert|516|t|LT|lk=on|abbr=on}} surfaced
|Ship length= {{convert|55.30|m|ftin|abbr=on}} (o/a) {{sfn|Gröner|1991|pp=25–30}} |Ship beam={{convert|5.80|m|ft|0|abbr=on}}{{sfn|Gröner|1991|pp=25–30}} |Ship draught={{convert|3.68|m|ftin|abbr=on}}{{sfn|Gröner|1991|pp=25–30}} |Ship propulsion=*2 × propeller shaft
|Ship speed=*{{convert|13.6|kn|lk=in}} surfaced
|Ship range=*{{convert|9,040|nmi|abbr=on|lk=in}} at {{convert|5|kn}} surfaced
|Ship test depth={{convert|50|m|ft|abbr=on}} |Ship complement=3 officers, 31 men{{sfn|Gröner|1991|pp=25–30}} |Ship armament=*5 × {{convert|50|cm|in|1|abbr=on}} torpedo tubes (4 bow, 1 stern)
|Ship notes= }} {{Infobox service record |is_ship=yes |is_multi=yes |partof=*Mittelmeer / Mittelmeer II Flotilla
|commanders=*Kptlt. Franz Becker |operations=7 patrols |victories=*38 merchant ships sunk
}} |
SM UB-50 was a German Type UB III submarine or U-boat in the German Imperial Navy ({{langx|de|Kaiserliche Marine}}) during World War I. The U-boat was ordered on 20 May 1916. She was commissioned into the Pola Flotilla of the German Imperial Navy on 12 July 1917 as SM UB-50.{{#tag:ref|"SM" stands for "Seiner Majestät" ({{langx|en|His Majesty's}}) and combined with the U for Unterseeboot would be translated as His Majesty's Submarine.|group=Note}}
The submarine conducted seven patrols and sank 40 ships during the war for a total loss of {{GRT|97,922|disp=long}} and 16,499 tons. She operated as part of the Pola Flotilla based in Cattaro. UB-50 surrendered on 16 January 1919 with the remainder of the Pola Flotilla following an order by Admiral Reinhard Scheer to return to port. During her passage through the Straits of Gibraltar, she managed to sink the battleship {{HMS|Britannia|1904|6}}. UB-50 was later broken up at Swansea.{{sfn|Gröner|1991|pp=25–30}}
Construction
{{Main|Type UB III submarine}}
UB-50 was ordered by the German Imperial Navy on 20 May 1916. She was built by Blohm & Voss, Hamburg and following just under a year of construction, launched at Hamburg on 6 January 1917. UB-50 was commissioned later that same year under the command of Kapitänleutnant (Kptlt.) Franz Becker. Like all Type UB III submarines, UB-50 carried 10 torpedoes and was armed with an 8.8 cm SK L/30 naval gun deck gun. UB-50 could carry a crew of up to 34 men and had a cruising range of {{convert|9040|nmi|lk=in}}.{{sfn|Gröner|1991|pp=25–30}} UB-50 had a displacement of {{convert|516|t|LT|lk=in|abbr=on}} while surfaced and {{convert|651|t|LT|abbr=on}} when submerged. Her engines enabled her to travel at {{convert|13.6|kn|lk=in}} when surfaced and {{convert|8|kn}} when submerged.{{sfn|Gröner|1991|pp=25–30}}
Service history
=First patrol=
Soon after she left Pola, UB-50 encountered the William H. Crawford, a {{GRT|1593}} American sailing ship. It sank after an attack from the U-boat stopped her.{{cite Uboat.net
|id=6541
|name=William H. Clifford
|type=1ship
|access-date=2 May 2010
}} Four days later, UB-50 sighted the {{GRT|800}} British barge R.B.40. UB 50 launched a torpedo which instead hit the British tug towing the ship, the {{GRT|121}} H.s.3. The tug sank, but the barge was not sunk.{{cite Uboat.net
|id=2665
|name=Tug H.s.3
|type=1ship
|access-date=2 May 2010
}} The following day, UB-50 found two Portuguese sailboats Correiro De Sines and Comizianes Da Graca at {{GRT|32}} and {{GRT|32}} respectively.{{cite Uboat.net
|id=1456
|name=Correiro De Sines
|type=1ship
|access-date=2 May 2010
}} They were sunk {{convert|6|nmi}} north of Cape Sines.{{cite Uboat.net |id=1391
|name=Comizianes Da Graca
|type=1ship
|access-date=2 May 2010
}} A day later, she found the Portuguese {{GRT|196}} ship Sado, which she sank about {{convert|16|nmi}} south of her prey the day before.{{cite Uboat.net
|id=5292
|name=Sado
|type=1ship
|access-date=2 May 2010
}} Four days later, UB-50 finally encountered and sank a merchant, this being the {{GRT|3,611}} British Polar Prince, carrying coal for Malta.{{cite Uboat.net
|id=4830
|name=Steamer Polar Prince
|type=1ship
|access-date=2 May 2010
}} Two days later, she sank the Fabian, a {{GRT|2,246}} British steamer going to Liverpool, killing three.{{cite Uboat.net
|id=2101
|name=Steamer Fabian
|type=1ship
|access-date=2 May 2010
}} Later that day, she sank the Gioffredo Mameli, a {{GRT|4,124}} ton Italian steamer carrying ore.{{cite Uboat.net
|id=2460
|name=Steamer Gioffredo Mameli
|type=1ship
|access-date=2 May 2010
}} The {{GRT|2,464}} coal carrying Greek steamer Alkyon was attacked two days later by UB-50, sinking close off Oran.{{cite Uboat.net
|id=210
|name=Steamer Alkyon
|type=1ship
|access-date=2 May 2010
}} The UB 50 followed up with the sinking of the {{GRT|1,670}} Norwegian steamer John Knudsen, killing one.{{cite Uboat.net
|id=3180
|name=Steamer John Knudsen
|type=1ship
|access-date=2 May 2010
}} Four days later, the {{GRT|296}} Italian sailboat Ciro was scuttled after being hit by UB-50,{{cite Uboat.net
|id=1284
|name=Sailing vessel Ciro
|type=1ship
|access-date=2 May 2010
}} the last ship she would sink before returning to base.
=Second patrol=
SM UB-50 began her second patrol with the sinking of the Marc Fraissinet, a {{GRT|3,060}} French steamer carrying wood, munitions, and hay to Bizerte. It sank {{convert|15|nmi}} north of Tabarca after being torpedoed by UB-50.{{cite Uboat.net
|id=3887
|name=Steamer Marc Fraissinet
|type=1ship
|access-date=3 May 2010
}} Later that day UB 50 encountered the Senegal, an {{GRT|845}} Italian steamer, sinking her off the coast of Algeria with no casualties.{{cite Uboat.net
|id=5520
|name=Steamer Senegal
|type=1ship
|access-date=3 May 2010
}} Three days after that, the Margram Abbey, a {{GRT|4,367}} British steamer carrying coal, was found and torpedoed by UB-50. It was beached off the coast of Algeria, but the torpedo damage, which killed two, had wrecked the ship.{{cite Uboat.net
|id=7210
|name=Steamer Margam Abbey
|type=1ship
|access-date=3 May 2010
}} UB 50 attacked the Antaeus, a {{GRT|3,061}} British steamer, three days later off Cape Bon. There were no casualties, but the captain was taken prisoner. On the following day, UB 50 torpedoed the Amberton, a {{GRT|4,556}} British steamer, but she was only damaged.{{cite Uboat.net
|id=239
|name=Steamer Amberton
|type=1ship
|access-date=3 May 2010
}} Four days later, the submarine found her last target of her second patrol, the {{GRT|2,774}} American steamer Rizal, which sank {{convert|9|nmi}} from Cape Cavallo.{{cite Uboat.net
|id=5150
|name=Steamer Rizal
|type=1ship
|access-date=3 May 2010
}}
=Third patrol=
UB-50 started out her third patrol by finding and sinking the {{GRT|96}} Italian sailboat S. Giuseppe B. off the coast of Africa.{{cite Uboat.net
|id=5278
|name=Sailing vessel S. Giuseppe B.
|type=1ship
|access-date=3 May 2010
}} She sank the {{GRT|8,293}} British steamer City of Lucknow two days later {{convert|50|nmi}} northeast of the Cani Rocks.{{cite Uboat.net
|id=7373
|name=Steamer City Of Lucknow
|type=1ship
|access-date=3 May 2010
}} On Christmas Day, 1917, UB-50 sank the Sant’ Antonio, an {{GRT|843}} Italian sailing vessel, by gunfire near Bizerte.{{cite Uboat.net
|id=7557
|name=Sailing vessel Sant’ Antonio
|type=1ship
|access-date=3 May 2010
}} On New Year's Day, 1918, the Egyptian Transport, a {{GRT|4,648}} British steamer, was damaged during an attack by UB-50, which killed five men. It was later beached but refloated.{{cite Uboat.net
|id=1839
|name=Steamer Egyptian Transport
|type=1ship
|access-date=3 May 2010
}} Two days later, the Allanton, a {{GRT|4,253}} British steamer carrying coal, was sunk by UB-50,{{cite Uboat.net
|id=212
|name=Steamer Allanton
|type=1ship
|access-date=3 May 2010
}} which also sunk the Steelville, a {{GRT|3,649}} British steamer also carrying coal later that day.{{cite Uboat.net
|id=5765
|name=Steamer Steelville
|type=1ship
|access-date=3 May 2010
}} Four days later, UB-50 torpedoed the Arab, a {{GRT|4,191}} British steamer coal off the coast of Cape Serrat, killing 21.{{cite Uboat.net
|id=396
|name=Steamer Arab
|type=1ship
|access-date=3 May 2010
}}
=Fourth patrol=
UB-50{{'}}s fourth patrol was very successful. In less than a month, she sank six vessels. The first victim was the {{GRT|2,457}} French steamer Saint Jean Ii, which went down 22 March 1918 off Cap Bon.{{cite Uboat.net
|id=5322
|name=Steamer Saint Jean Ii
|type=1ship
|access-date=3 May 2010
}} That same day, UB-50 managed to damage the British steamer Shadwell off Bizerta.{{cite Uboat.net
|id=5541
|name=Steamer Shadwell
|type=1ship
|access-date=3 May 2010
}} Four days later UB-50 sank the {{GRT|11,495}} Italian steamer Volturno off Bone (Annaba), Algeria.{{cite Uboat.net
|id=6394
|name=Steamer Volturno
|type=1ship
|access-date=3 May 2010
}} On 6 April, UB-50 sank the French vessel Madeleine Iii and on 11 April, she sank the Italian sailing ship Carmela G and the British vessel Highland Prince.{{cite Uboat.net
|id=1133
|name=Sailing vessel Carmela G
|type=1ship
|access-date=10 May 2010
|id=3809
|name=Q-ship Madeleine III
|type=1ship
|access-date=10 May 2010
}}
=Fifth patrol=
UB-50 began her fifth war patrol by damaging the {{GRT|3,926}} British steamer Elswick Grange carrying coal off the coast of Oran, killing one.{{cite Uboat.net
|id=1923
|name=Elswick Grange
|type=1ship
|access-date=5 May 2010
}} Two days later, she ran across the {{GRT|3,152}} British steamer Mavisbrook carrying coal. She was torpedoed south east of Cabo de Gata, killing 18.{{cite Uboat.net
|id=4038
|name=Mavisbrook
|type=1ship
|access-date=5 May 2010
}} On that same day, she came upon the {{GRT|168}} Danish three-masted iron-hulled schooner Kirstine Jesen, sinking after being fired upon from UB-50
|id=3393
|name=Kirstine Jensen
|type=1ship
|access-date=5 May 2010
}} Two days later, the New Sweden, a {{GRT|5319}} Swedish steamer, was hit by UB-50 and sank.{{cite Uboat.net
|id=4368
|name=New Sweden
|type=1ship
|access-date=5 May 2010
}} Two days later, UB-50 found the {{GRT|180}} Spanish steamer Maria Pia, which sank with no casualties.{{cite Uboat.net
|id=7571
|name=Maria Pia
|type=1ship
|access-date=5 May 2010
}} Three days after that, the {{GRT|117}} French sailboat Animal Lafont and {{GRT|257}} Italian sailboat Santa Teresa were torpedoed by the U-boat with no casualties.{{cite Uboat.net
|id=255
|name=Animal Lafont
|type=1ship
|access-date=5 May 2010
|id=5434
|name=Santa Teresa
|type=1ship
|access-date=5 May 2010
}}
=Sixth patrol=
Shortly before her sixth patrol, Oberleutnant zur See Heinrich Kukat took over command from Kptlt. Becker.{{sfn|Bendert|2000|p=130}} On her sixth patrol, UB-50 encountered the Imber, a {{GRT|2,514}} British steamer and torpedoed her south of Cape St. Maria di Leuca, though she survived.{{cite Uboat.net
|id=2985
|name=Steamer Imber
|type=1ship
|access-date=3 May 2010
}} Three days later, UB-50 sank the War Swallow, a {{GRT|5,216}} British merchant ship carrying coal from the River Tyne to Port Said.{{cite Uboat.net
|id=6453
|name=Steamer War Swallow
|type=1ship
|access-date=3 May 2010
}} Another three days passed before UB-50 found her next target, the Italian steamer Adria 1, a ship carrying cotton from Palermo to Tunis. It sank, but there were no deaths.{{cite Uboat.net
|id=67
|name=steamer Adria 1
|type=1ship
|access-date=3 May 2010
}} Two days later, the {{GRT|5,257}} British steamer Upada was torpedoed by UB-50 killing three, but was only damaged.{{cite Uboat.net
|id=6213
|name=Steamer Upada
|type=1ship
|access-date=3 May 2010
}} UB-50 sank the Messidor, a {{GRT|3,883}} British coal steamer two days later, sinking the ship and killing one.{{cite Uboat.net
|id=4110
|name=Steamer Messidor
|type=1ship
|access-date=3 May 2010
}} The following day, she torpedoed the Rutherglen, a {{GRT|4,214}} British steam merchant carrying coal.{{cite Uboat.net
|id=5265
|name=Steamer Rutherglen
|type=1ship
|access-date=3 May 2010
}} That was followed by an attack on the Magellan, a {{GRT|3,642}} British steamer on the following day. She sank with one man.{{cite Uboat.net
|id=7112
|name=Steamer Magellan
|type=1ship
|access-date=3 May 2010
}} The last ship sunk on the patrol was the Antonio S., a {{GRT|175}} Italian sailboat sunk off the coast of Tunisia.{{cite Uboat.net
|id=374
|name=Sailing vessel Antonio S.
|type=1ship
|access-date=3 May 2010
}}
=Seventh patrol=
File:HMS Britannia (1904) sinking on 9 November 1918.jpg on 9 November 1918.]]
On 9 November 1918, two days before the Armistice with Germany, UB-50 sank the British battleship HMS Britannia. The Britannia was on a voyage to Gibraltar when she was torpedoed off Cape Trafalgar. After the initial explosion, the ship began listing ten degrees to port. A few minutes later, another explosion started a fire in a {{convert|9.2|in|mm|abbr=on}} magazine, which resulted in a cordite explosion in the magazine. The Britannia stayed at 10-degrees for 2½ hours before sinking.Burt, p. 253, says that Britannia listed 10 degrees within "minutes" of the first explosion, then held that list for 2½ hours before sinking, while Conway's All the World's Fighting Ships 1906–1921, p. 9, claims that she stayed afloat for a total of 3½ hours before sinking, making the length of time it took her to sink ambiguous Its 16,350-tons made it the largest ship the U-boat ever sank, and the only one UB-50 would sink during her last patrol.{{cite Uboat.net
|id=ub50
|name=UB-50
|type=1boat
|access-date=29 April 2010
}}
Summary of raiding history
| class="wikitable sortable" |
| width="140px"|Date
! width="200px"|Name ! width="160px"|Nationality ! width="25px" |TonnageMerchant ship tonnages are in gross register tons. Military vessels are listed by tons displacement. |
|---|
| align="right"|8 September 1917
|align="left" |William H. Clifford |align="left" |{{flag|United States|1912}} |align="right"|1,593 |align="left" |Sunk |
| align="right"|12 September 1917
|align="left" |HS 3 |align="left" |{{flag|United Kingdom|civil}} |align="right"|121 |align="left" |Sunk |
| align="right"|12 September 1917
|align="left" |RB 10 |align="left" |{{flag|United Kingdom|civil}} |align="right"|800 |align="left" |Sunk |
| align="right"|13 September 1917
|align="left" |Gomizianes Da Graça Odemira |align="left" |{{flag|Portugal}} |align="right"|32 |align="left" |Sunk |
| align="right"|13 September 1917
|align="left" |Correiro De Sines |align="left" |{{flag|Portugal}} |align="right"|32 |align="left" |Sunk |
| align="right"|14 September 1917
|align="left" |Sado |align="left" |{{flag|Portugal}} |align="right"|196 |align="left" |Sunk |
| align="right"|18 September 1917
|align="left" |Polar Prince |align="left" |{{flag|United Kingdom|civil}} |align="right"|3,611 |align="left" |Sunk |
| align="right"|20 September 1917
|align="left" |Fabian |align="left" |{{flag|United Kingdom|civil}} |align="right"|2,246 |align="left" |Sunk |
| align="right"|20 September 1917
|align="left" |Gioffredo Mameli |align="left" |{{flag|Kingdom of Italy}} |align="right"|4,124 |align="left" |Sunk |
| align="right"|22 September 1917
|align="left" |Alkyon |align="left" |{{flag|Greece|old}} |align="right"|2,464 |align="left" |Sunk |
| align="right"|22 September 1917
|align="left" |John Knudsen |align="left" |{{flag|Norway}} |align="right"|1,670 |align="left" |Sunk |
| align="right"|26 September 1917
|align="left" |Ciro |align="left" |{{flag|Kingdom of Italy}} |align="right"|296 |align="left" |Sunk |
| align="right"|28 October 1917
|align="left" |Marc Fraissinet |align="left" |{{flag|France}} |align="right"|3,060 |align="left" |Sunk |
| align="right"|28 October 1917
|align="left" |Senegal |align="left" |{{flag|Kingdom of Italy}} |align="right"|845 |align="left" |Sunk |
| align="right"|1 November 1917
|align="left" |Margam Abbey |align="left" |{{flag|United Kingdom|civil}} |align="right"|4,367 |align="left" |Sunk |
| align="right"|4 November 1917
|align="left" |Antaeus |align="left" |{{flag|United Kingdom|civil}} |align="right"|3,061 |align="left" |Sunk |
| align="right"|5 November 1917
|align="left" |Amberton |align="left" |{{flag|United Kingdom|civil}} |align="right"|4,556 |align="left" |Damaged |
| align="right"|9 November 1917
|align="left" |Rizal |align="left" |{{flag|United States|1912}} |align="right"|2,744 |align="left" |Sunk |
| align="right"|19 December 1917
|align="left" |S. Giuseppe B. |align="left" |{{flag|Kingdom of Italy}} |align="right"|96 |align="left" |Sunk |
| align="right"|21 December 1917
|align="left" |City Of Lucknow |align="left" |{{flag|United Kingdom|civil}} |align="right"|8,293 |align="left" |Sunk |
| align="right"|25 December 1917
|align="left" |Sant’ Antonio |align="left" |{{flag|Kingdom of Italy}} |align="right"|843 |align="left" |Sunk |
| align="right"|1 January 1918
|align="left" |Egyptian Transport |align="left" |{{flag|United Kingdom|civil}} |align="right"|4,648 |align="left" |Damaged |
| align="right"|3 January 1918
|align="left" |Allanton |align="left" |{{flag|United Kingdom|civil}} |align="right"|4,253 |align="left" |Sunk |
| align="right"|3 January 1918
|align="left" |Steelville |align="left" |{{flag|United Kingdom|civil}} |align="right"|3,649 |align="left" |Sunk |
| align="right"|7 January 1918
|align="left" |Arab |align="left" |{{flag|United Kingdom|civil}} |align="right"|4,191 |align="left" |Sunk |
| align="right"|22 March 1918
|align="left" |Saint Jean II |align="left" |{{flag|France}} |align="right"|2,457 |align="left" |Sunk |
| align="right"|22 March 1918
|align="left" |Shadwell |align="left" |{{flag|United Kingdom|civil}} |align="right"|4,091 |align="left" |Damaged |
| align="right"|26 March 1918
|align="left" |Volturno |align="left" |{{flag|Kingdom of Italy}} |align="right"|11,495 |align="left" |Sunk |
| align="right"|6 April 1918
|align="left" |Madeleine III |align="left" |{{navy|France}} |align="right"|149 |align="left" |Sunk |
| align="right"|11 April 1918
|align="left" |Carmela G |align="left" |{{flag|Kingdom of Italy}} |align="right"|41 |align="left" |Sunk |
| align="right"|11 April 1918
|align="left" |Highland Prince |align="left" |{{flag|United Kingdom|civil}} |align="right"|3,390 |align="left" |Sunk |
| align="right"|17 May 1918
|align="left" |Elswick Grange |align="left" |{{flag|United Kingdom|civil}} |align="right"|3,926 |align="left" |Damaged |
| align="right"|17 May 1918
|align="left" |Mavisbrook |align="left" |{{flag|United Kingdom|civil}} |align="right"|3,152 |align="left" |Sunk |
| align="right"|19 May 1918
|align="left" |Kirstine Jensen |align="left" |{{flag|Denmark}} |align="right"|168 |align="left" |Sunk |
| align="right"|20 May 1918
|align="left" |New Sweden |align="left" |{{flag|Sweden}} |align="right"|5,319 |align="left" |Sunk |
| align="right"|22 May 1918
|align="left" |Maria Pia |align="left" |{{flag|Kingdom of Italy}} |align="right"|180 |align="left" |Damaged |
| align="right"|25 May 1918
|align="left" |Amiral Lafont |align="left" |{{flag|France}} |align="right"|117 |align="left" |Sunk |
| align="right"|25 May 1918
|align="left" |Santa Teresa |align="left" |{{flag|Kingdom of Italy}} |align="right"|257 |align="left" |Sunk |
| align="right"|13 July 1918
|align="left" |Imber |align="left" |{{flag|United Kingdom|civil}} |align="right"|2,514 |align="left" |Damaged |
| align="right"|16 July 1918
|align="left" |War Swallow |align="left" |{{flag|United Kingdom|civil}} |align="right"|5,216 |align="left" |Sunk |
| align="right"|19 July 1918
|align="left" |Adria 1 |align="left" |{{flag|Kingdom of Italy}} |align="right"|1,809 |align="left" |Sunk |
| align="right"|21 July 1918
|align="left" |Upada |align="left" |{{flag|United Kingdom|civil}} |align="right"|5,257 |align="left" |Damaged |
| align="right"|23 July 1918
|align="left" |Messidor |align="left" |{{flag|United Kingdom|civil}} |align="right"|3,883 |align="left" |Sunk |
| align="right"|24 July 1918
|align="left" |Rutherglen |align="left" |{{flag|United Kingdom|civil}} |align="right"|4,214 |align="left" |Sunk |
| align="right"|25 July 1918
|align="left" |Magellan |align="left" |{{flag|United Kingdom|civil}} |align="right"|3,642 |align="left" |Sunk |
| align="right"|27 July 1918
|align="left" |Antonio S. |align="left" |{{flag|Kingdom of Italy}} |align="right"|175 |align="left" |Sunk |
| align="right"|9 November 1918
|align="left" |{{HMS|Britannia|1904|6}} |align="left" |{{navy|United Kingdom}} |align="right"|16,350 |align="left" |Sunk |
References
=Notes=
{{Reflist|group=Note}}
=Citations=
{{Reflist|colwidth=30em}}
Bibliography
- {{Cite book|last=Burt|first=R. A|title=British Battleships 1889–1904|year=1988|location=Annapolis, Maryland|publisher=Naval Institute Press|isbn=0-87021-061-0}}
- {{cite book | editor1-last=Gardiner | editor1-first=Robert | editor2-last=Gray | editor2-first=Randal |title=Conway's All the World's Fighting Ships 1906–1921 | location = Annapolis, Maryland | publisher = Naval Institute Press | year = 1985 | isbn = 978-0-87021-907-8 | oclc = 12119866 }}
- {{Cite book| last = Bendert| first = Harald |title=Die UB-Boote der Kaiserlichen Marine, 1914-1918. Einsätze, Erfolge, Schicksal | location = Hamburg | publisher = Verlag E.S. Mittler & Sohn GmbH| year = 2000 | isbn = 3-8132-0713-7 | language = de}}
- {{cite book
|last1=Gröner
|first1=Erich
|last2=Jung
|first2=Dieter
|last3=Maass
|first3=Martin
|translator-last1=Thomas
|translator-first1=Keith
|translator-last2=Magowan
|translator-first2=Rachel
|year=1991
|title=German Warships 1815–1945, U-boats and Mine Warfare Vessels
|volume=2
|location=London
|publisher=Conway Maritime Press
|isbn=0-85177-593-4
|ref=CITEREFGröner1991
}}
- {{cite book |last1=Rössler |first1=Eberhard |title=Die deutschen U-Boote und ihre Werften: eine Bilddokumentation über den deutschen U-Bootbau; in zwei Bänden |date=1979 |publisher=Bernard & Graefe |location=Munich |volume=I|isbn=3-7637-5213-7|url=https://books.google.com/books?id=QIvfAAAAMAAJ |language=de}}
{{German Type UB III submarines}}
{{Use dmy dates|date=August 2019}}
{{Good article}}
{{DEFAULTSORT:Ub050}}
Category:German Type UB III submarines
Category:World War I submarines of Germany