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SM UB-9

SM UB-9 was a German Type UB I submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. UB-9 was ordered in October 1914 and was laid down at the AG Weser shipyard in Bremen in November. UB-9 was a little under 28 metres (92 ft) in length and displaced between 127 and 141 tonnes (125 and 139 long tons), depending on whether surfaced or submerged. She carried two torpedoes for her two bow torpedo tubes and was also armed with a deck-mounted machine gun. She was launched and commissioned as SM UB-9 in February 1915.[Note 1]

History
German Empire
NameUB-9
Ordered15 October 1914[1]
BuilderAG Weser, Bremen[2]
Yard number218[1]
Laid down6 November 1914[1]
Launched6 February 1915[1]
Commissioned18 February 1915[1]
Stricken19 February 1919[1]
FateBroken up in 1919[1]
General characteristics [3]
Class and typeGerman Type UB I submarine
Displacement
  • 127 t (125 long tons) surfaced
  • 141 t (139 long tons) submerged
Length27.88 m (91 ft 6 in) (o/a)
Beam3.15 m (10 ft 4 in)
Draft3.03 m (9 ft 11 in)
Propulsion
Speed
  • 7.45 knots (13.80 km/h; 8.57 mph) surfaced
  • 6.24 knots (11.56 km/h; 7.18 mph) submerged
Range
  • 1,500 nmi (2,800 km; 1,700 mi) at 5 knots (9.3 km/h; 5.8 mph) surfaced
  • 45 nmi (83 km; 52 mi) at 4 knots (7.4 km/h; 4.6 mph)
Test depth50 metres (160 ft)
Complement14
Armament
Notes33-second diving time
Service record
Commanders:
Operations: No patrols[1]
Victories: None[1]

UB-9's commanding officer at commissioning only remained in charge of the ship for a week. Sources do not report any more commanding officers assigned through the end of the war, so it's not clear if the submarine remained in commission. UB-9 was reported in use as a training vessel at Kiel in September 1915. The U-boat made no war patrols and sank no ships during the war, which may indicate that the vessel remained in a training role. At the end of the war, UB-9 was deemed unseaworthy and unable to surrender at Harwich with the rest of Germany's U-boat fleet. She remained in Germany where she was broken up by Dräger at Lübeck in 1919.

Design and construction

After the German Army's rapid advance along the North Sea coast in the earliest stages of World War I, the German Imperial Navy found itself without suitable submarines that could be operated in the narrow and shallow seas off Flanders.[4][5] Project 34, a design effort begun in mid-August 1914,[5] produced the Type UB I design: a small submarine that could be shipped by rail to a port of operations and quickly assembled. Constrained by railroad size limitations, the UB I design called for a boat about 28 metres (92 ft) long and displacing about 125 tonnes (123 long tons) with two torpedo tubes.[4][Note 2]

UB-9 was the first of the initial allotment of seven submarines—numbered up to UB-15—ordered on 15 October from AG Weser of Bremen, just shy of two months after planning for the class began.[4][6] UB-9 was laid down by Weser in Bremen on 6 November.[1] As built, UB-9 was 27.88 metres (91 ft 6 in) long, 3.15 metres (10 ft 4 in) abeam, and had a draft of 3.03 metres (9 ft 11 in). She had a single 59-brake-horsepower (44 kW) Körting 4-cylinder diesel engine for surface travel, and a single 119-shaft-horsepower (89 kW) Siemens-Schuckert electric motor for underwater travel, both attached to a single propeller shaft. Her top speeds were 7.45 knots (13.80 km/h; 8.57 mph), surfaced, and 6.24 knots (11.56 km/h; 7.18 mph), submerged.[2] At more moderate speeds, she could sail up to 1,500 nautical miles (2,800 km; 1,700 mi) on the surface before refueling, and up to 45 nautical miles (83 km; 52 mi) submerged before recharging her batteries. Like all boats of the class, UB-9 was rated to a diving depth of 50 metres (160 ft), and could completely submerge in 33 seconds.

UB-9 was armed with two 45-centimeter (17.7 in) torpedoes in two bow torpedo tubes. She was also outfitted for a single 8-millimeter (0.31 in) machine gun on deck. UB-9's standard complement consisted of one officer and thirteen enlisted men.[7] After work on UB-9 was complete at the Weser yard, she was launched on 6 February 1915.[1]

Career

The submarine was commissioned into the German Imperial Navy as SM UB-9 on 18 February 1915 under the command of Oberleutnant zur See Wilhelm Werner,[1] a 26-year-old first-time U-boat commander.[8] Wenninger was only in command of UB-9 for ten days.[1] Sources do not indicate who, if anyone, succeeded him as commander of UB-9, or if UB-9 remained in commission.

According to authors R. H. Gibson and Maurice Prendergast, UB-9 had been assigned to the Kiel Periscope School by September 1915.[9] Uboat.net reports that UB-9' undertook no war patrols and had no successes against enemy ships, which may indicate that the vessel remained in use only as a training vessel.[1]

At the end of the war, the Allies required all German U-boats to be sailed to Harwich for surrender. UB-9 was one of eight U-boats deemed unseaworthy and allowed to remain in Germany.[10][Note 3] UB-9 was broken up by Dräger at Lübeck in 1919.[1]

Notes

  1. ^ "SM" stands for "Seiner Majestät" (English: His Majesty's) and combined with the U for Unterseeboot would be translated as His Majesty's Submarine.
  2. ^ A further refinement of the design—replacing the torpedo tubes with mine chutes but changing little else—evolved into the Type UC I coastal minelaying submarine. See: Miller, p. 458.
  3. ^ The other seven boats were U-1, U-2, U-4, U-17, and three fellow Type UB I boats, UB-2, UB-5, and UB-11.

References

  1. ^ a b c d e f g h i j k l m n o p Helgason, Guðmundur. "WWI U-boats: UB 9". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 19 February 2009.
  2. ^ a b Tarrant, p. 172.
  3. ^ Gröner 1991, pp. 22–23.
  4. ^ a b c Miller, pp. 46–47.
  5. ^ a b Karau, p. 48.
  6. ^ Williamson, p. 12.
  7. ^ Karau, p. 49.
  8. ^ Helgason, Guðmundur. "WWI U-boat commanders: Wilhelm Werner". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 20 March 2009.
  9. ^ Gibson and Prendergast, p. 63.
  10. ^ Gibson and Prendergast, pp. 331–32.

Bibliography

other, ships, with, same, name, german, submarine, german, type, submarine, boat, german, imperial, navy, german, kaiserliche, marine, during, world, ordered, october, 1914, laid, down, weser, shipyard, bremen, november, little, under, metres, length, displace. For other ships with the same name see German submarine U 9 SM UB 9 was a German Type UB I submarine or U boat in the German Imperial Navy German Kaiserliche Marine during World War I UB 9 was ordered in October 1914 and was laid down at the AG Weser shipyard in Bremen in November UB 9 was a little under 28 metres 92 ft in length and displaced between 127 and 141 tonnes 125 and 139 long tons depending on whether surfaced or submerged She carried two torpedoes for her two bow torpedo tubes and was also armed with a deck mounted machine gun She was launched and commissioned as SM UB 9 in February 1915 Note 1 HistoryGerman EmpireNameUB 9Ordered15 October 1914 1 BuilderAG Weser Bremen 2 Yard number218 1 Laid down6 November 1914 1 Launched6 February 1915 1 Commissioned18 February 1915 1 Stricken19 February 1919 1 FateBroken up in 1919 1 General characteristics 3 Class and typeGerman Type UB I submarineDisplacement127 t 125 long tons surfaced 141 t 139 long tons submergedLength27 88 m 91 ft 6 in o a Beam3 15 m 10 ft 4 in Draft3 03 m 9 ft 11 in Propulsion1 propeller shaft 1 Korting 4 cylinder diesel engine 59 bhp 44 kW 1 Siemens Schuckert electric motor 119 shp 89 kW Speed7 45 knots 13 80 km h 8 57 mph surfaced 6 24 knots 11 56 km h 7 18 mph submergedRange1 500 nmi 2 800 km 1 700 mi at 5 knots 9 3 km h 5 8 mph surfaced 45 nmi 83 km 52 mi at 4 knots 7 4 km h 4 6 mph Test depth50 metres 160 ft Complement14Armament2 45 cm 17 7 in bow torpedo tubes 2 torpedoes 1 8 mm 0 31 in machine gunNotes33 second diving timeService recordCommanders Oblt Wilhelm Werner 18 28 February 1915 1 Operations No patrols 1 Victories None 1 UB 9 s commanding officer at commissioning only remained in charge of the ship for a week Sources do not report any more commanding officers assigned through the end of the war so it s not clear if the submarine remained in commission UB 9 was reported in use as a training vessel at Kiel in September 1915 The U boat made no war patrols and sank no ships during the war which may indicate that the vessel remained in a training role At the end of the war UB 9 was deemed unseaworthy and unable to surrender at Harwich with the rest of Germany s U boat fleet She remained in Germany where she was broken up by Drager at Lubeck in 1919 Contents 1 Design and construction 2 Career 3 Notes 4 References 5 BibliographyDesign and construction EditAfter the German Army s rapid advance along the North Sea coast in the earliest stages of World War I the German Imperial Navy found itself without suitable submarines that could be operated in the narrow and shallow seas off Flanders 4 5 Project 34 a design effort begun in mid August 1914 5 produced the Type UB I design a small submarine that could be shipped by rail to a port of operations and quickly assembled Constrained by railroad size limitations the UB I design called for a boat about 28 metres 92 ft long and displacing about 125 tonnes 123 long tons with two torpedo tubes 4 Note 2 UB 9 was the first of the initial allotment of seven submarines numbered up to UB 15 ordered on 15 October from AG Weser of Bremen just shy of two months after planning for the class began 4 6 UB 9 was laid down by Weser in Bremen on 6 November 1 As built UB 9 was 27 88 metres 91 ft 6 in long 3 15 metres 10 ft 4 in abeam and had a draft of 3 03 metres 9 ft 11 in She had a single 59 brake horsepower 44 kW Korting 4 cylinder diesel engine for surface travel and a single 119 shaft horsepower 89 kW Siemens Schuckert electric motor for underwater travel both attached to a single propeller shaft Her top speeds were 7 45 knots 13 80 km h 8 57 mph surfaced and 6 24 knots 11 56 km h 7 18 mph submerged 2 At more moderate speeds she could sail up to 1 500 nautical miles 2 800 km 1 700 mi on the surface before refueling and up to 45 nautical miles 83 km 52 mi submerged before recharging her batteries Like all boats of the class UB 9 was rated to a diving depth of 50 metres 160 ft and could completely submerge in 33 seconds UB 9 was armed with two 45 centimeter 17 7 in torpedoes in two bow torpedo tubes She was also outfitted for a single 8 millimeter 0 31 in machine gun on deck UB 9 s standard complement consisted of one officer and thirteen enlisted men 7 After work on UB 9 was complete at the Weser yard she was launched on 6 February 1915 1 Career EditThe submarine was commissioned into the German Imperial Navy as SM UB 9 on 18 February 1915 under the command of Oberleutnant zur See Wilhelm Werner 1 a 26 year old first time U boat commander 8 Wenninger was only in command of UB 9 for ten days 1 Sources do not indicate who if anyone succeeded him as commander of UB 9 or if UB 9 remained in commission According to authors R H Gibson and Maurice Prendergast UB 9 had been assigned to the Kiel Periscope School by September 1915 9 Uboat net reports that UB 9 undertook no war patrols and had no successes against enemy ships which may indicate that the vessel remained in use only as a training vessel 1 At the end of the war the Allies required all German U boats to be sailed to Harwich for surrender UB 9 was one of eight U boats deemed unseaworthy and allowed to remain in Germany 10 Note 3 UB 9 was broken up by Drager at Lubeck in 1919 1 Notes Edit SM stands for Seiner Majestat English His Majesty s and combined with the U for Unterseeboot would be translated as His Majesty s Submarine A further refinement of the design replacing the torpedo tubes with mine chutes but changing little else evolved into the Type UC I coastal minelaying submarine See Miller p 458 The other seven boats were U 1 U 2 U 4 U 17 and three fellow Type UB I boats UB 2 UB 5 and UB 11 References Edit a b c d e f g h i j k l m n o p Helgason Gudmundur WWI U boats UB 9 German and Austrian U boats of World War I Kaiserliche Marine Uboat net Retrieved 19 February 2009 a b Tarrant p 172 Groner 1991 pp 22 23 a b c Miller pp 46 47 a b Karau p 48 Williamson p 12 Karau p 49 Helgason Gudmundur WWI U boat commanders Wilhelm Werner German and Austrian U boats of World War I Kaiserliche Marine Uboat net Retrieved 20 March 2009 Gibson and Prendergast p 63 Gibson and Prendergast pp 331 32 Bibliography EditBendert Harald 2000 Die UB Boote der Kaiserlichen Marine 1914 1918 Einsatze Erfolge Schicksal in German Hamburg Verlag E S Mittler amp Sohn GmbH ISBN 3 8132 0713 7 Groner Erich Jung Dieter Maass Martin 1991 U boats and Mine Warfare Vessels German Warships 1815 1945 Vol 2 Translated by Thomas Keith Magowan Rachel London Conway Maritime Press ISBN 0 85177 593 4 Gardiner Robert Gray Randal eds 1985 Conway s All the World s Fighting Ships 1906 1921 Annapolis Maryland Naval Institute Press ISBN 978 0 87021 907 8 OCLC 12119866 Gibson R H Maurice Prendergast 2003 1931 The German Submarine War 1914 1918 Annapolis Maryland Naval Institute Press ISBN 9781591143147 OCLC 52924732 Karau Mark D 2003 Wielding the Dagger the MarineKorps Flandern and the German War Effort 1914 1918 Westport Connecticut Praeger ISBN 978 0 313 32475 8 OCLC 51204317 Miller David 2002 The Illustrated Directory of Submarines of the World St Paul Minnesota MBI Pub Co ISBN 978 0 7603 1345 9 OCLC 50208951 Tarrant V E 1989 The U Boat Offensive 1914 1945 Annapolis Maryland Naval Institute Press ISBN 978 0 87021 764 7 OCLC 20338385 Williamson Gordon 2002 U boats of the Kaiser s Navy Oxford Osprey ISBN 978 1 84176 362 0 OCLC 48627495 Retrieved from https en wikipedia org w index php title SM UB 9 amp oldid 1067878967, wikipedia, wiki, book, books, library,

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