SM UB-35

SM UB-35 was a German Type UB II submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. The U-boat was ordered on 22 July 1915 and launched on 28 December 1915. She was commissioned into the German Imperial Navy on 22 June 1916 as SM UB-35.[Note 1]

For other ships with the same name, see German submarine U-35.
SM UB-45, a U-boat similar to UB-35
History
German Empire
Name: UB-35
Ordered: 22 July 1915[1]
Builder: Blohm & Voss, Hamburg[1]
Cost: 1,152,000 German Papiermark[2]
Yard number: 259[3]
Launched: 28 December 1915[3]
Completed: 17 April 1916[3]
Commissioned: 22 June 1916[2]
Fate: sunk by British warships 26 January 1918[2]
General characteristics [2]
Class and type: German Type UB II submarine
Displacement:
  • 274 t (270 long tons) surfaced
  • 303 t (298 long tons) submerged
Length:
Beam:
  • 4.37 m (14 ft 4 in) o/a
  • 3.85 m (12 ft 8 in) pressure hull
Draught: 3.69 m (12 ft 1 in)
Propulsion:
Speed:
  • 9.06 knots (16.78 km/h; 10.43 mph) surfaced
  • 5.71 knots (10.57 km/h; 6.57 mph) submerged
Range:
  • 7,030 nmi (13,020 km; 8,090 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) submerged
Test depth: 50 m (160 ft)
Complement: 2 officers, 21 men
Armament:
Notes: 42-second diving time
Service record
Part of:
  • Imperial German Navy:
  • I Flotilla
  • 18 August 1916 – 1 February 1917
  • II Flotilla
  • 1 February – 20 April 1917
  • Baltic Flotilla
  • 20 April – 19 July 1917
  • Flandern Flotilla
  • 19 July 1917 – 26 January 1918
Commanders:
  • Oblt.z.S. Rudolf Gebeschus[4]
  • 22 June – 26 September 1916
  • Oblt.z.S. Otto von Schrader[5]
  • 27 September – 5 November 1916
  • Kptlt. Rudolf Gebeschus[6]
  • 6 November 1916 – 19 April 1917
  • Oblt.z.S. Karl Stöter[7]
  • 20 April 1917 – 26 January 1918
Operations: 26 patrols
Victories:
  • 42 merchant ships sunk (47,739 GRT)
  • 2 merchant ships damaged (642 GRT)
  • 4 merchant ships captured as prizes (5,753 GRT)

The submarine sank 43 ships in 26 patrols. UB-35 was depth charged and sunk by British warships including HMS Leven in the English Channel on 26 January 1918.[8]

Design

A German Type UB II submarine, UB-35 had a displacement of 274 tonnes (270 long tons) when at the surface and 303 tonnes (298 long tons) while submerged. She had a total length of 36.90 m (121 ft 1 in), a beam of 4.37 m (14 ft 4 in), and a draught of 3.69 m (12 ft 1 in). The submarine was powered by two Benz six-cylinder diesel engines producing a total 270 metric horsepower (270 shp; 200 kW), two Siemens-Schuckert electric motors producing 280 metric horsepower (210 kW; 280 shp), and one propeller shaft. She was capable of operating at depths of up to 50 metres (160 ft).[2]

The submarine had a maximum surface speed of 9.06 knots (16.78 km/h; 10.43 mph) and a maximum submerged speed of 5.71 knots (10.57 km/h; 6.57 mph). When submerged, she could operate for 45 nautical miles (83 km; 52 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 7,030 nautical miles (13,020 km; 8,090 mi) at 5 knots (9.3 km/h; 5.8 mph). UB-35 was fitted with two 50 centimetres (20 in) torpedo tubes, four torpedoes, and one 8.8 cm (3.5 in) Uk L/30 deck gun. She had a complement of twenty-one crew members and two officers and a 42-second dive time.[2]

Summary of raiding history
Date Name Nationality Tonnage[Note 2] Fate[9]
17 October 1916 Sten  Norway 1,046 Sunk
19 October 1916 Cottica  Norway 320 Sunk
19 October 1916 Dido  Norway 333 Sunk
19 October 1916 Guldaas  Norway 636 Sunk
20 October 1916 Guldborg  Denmark 1,569 Sunk
20 October 1916 Libra  Denmark 174 Sunk
21 October 1916 Raftsund  Norway 937 Sunk
27 October 1916 Stemshest  Norway 811 Sunk
5 February 1917 Vestra  United Kingdom 1,021 Sunk
1 April 1917 Camilla  Norway 2,273 Sunk
1 April 1917 Ester  Denmark 1,210 Sunk
2 April 1917 Lord Scarborough  United Kingdom 158 Sunk
4 April 1917 Gibraltar  United Kingdom 188 Sunk
4 April 1917 Maggie Ross  United Kingdom 183 Sunk
6 April 1917 Kongshaug  Norway 380 Sunk
6 April 1917 Lord Kitchener  United Kingdom 158 Sunk
6 April 1917 Recto  United Kingdom 177 Sunk
1 June 1917 Paposo  Norway 1,067 Captured as a prize
1 June 1917 Rigmor  Denmark 161 Captured as a prize
1 June 1917 Viking  Denmark 2,952 Captured as a prize
3 June 1917 Sara  Denmark 1,573 Captured as a prize
22 July 1917 Breda  Netherlands 257 Damaged
11 August 1917 HMT Jay  Royal Navy 144 Sunk
6 September 1917 Thisbe  France 1,091 Sunk
7 September 1917 Haakon VII  Norway 2,175 Sunk
8 September 1917 Armorique  France 144 Sunk
8 September 1917 Blanche  France 160 Sunk
8 September 1917 Meeta  Russian Empire 144 Sunk
27 September 1917 Colbert  France 385 Damaged
29 September 1917 Kildonan  United Kingdom 2,118 Sunk
4 October 1917 Perseverance  United Kingdom 30 Sunk
31 October 1917 Phare  United Kingdom 1,282 Sunk
2 November 1917 Bur  Sweden 1,806 Sunk
2 November 1917 Jessie  United Kingdom 332 Sunk
4 November 1917 Gimle  Norway 1,130 Sunk
29 November 1917 Bob  Norway 678 Sunk
29 November 1917 Haugastøl  Norway 2,118 Sunk
1 December 1917 Rion  United Kingdom 50 Sunk
3 December 1917 Livonia  United Kingdom 1,879 Sunk
3 December 1917 Wreathier  United Kingdom 852 Sunk
4 December 1917 Eagle  United Kingdom 182 Sunk
4 December 1917 Helge  Sweden 343 Sunk
23 December 1917 Hilda Lea  United Kingdom 1,328 Sunk
26 December 1917 Skaala  Norway 1,129 Sunk
31 December 1917 Westville  United Kingdom 3,207 Sunk
20 January 1918 Mechanician  Royal Navy 9,044 Sunk
22 January 1918 Molina  Norway 1,122 Sunk
22 January 1918 Serrana  United Kingdom 3,677 Sunk

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. Merchant ship tonnages are in gross register tons. Military vessels are listed by tons displacement.

References
  1. Rössler 1979, p. 64.
  2. Gröner 1991, pp. 23-25.
  3. Rössler 1979, p. 65.
  4. Helgason, Guðmundur. "WWI U-boat commanders: Rudolf Gebeschus". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 1 February 2015.
  5. Helgason, Guðmundur. "WWI U-boat commanders: Otto von Schrader (Royal House Order of Hohenzollern)". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 1 February 2015.
  6. Helgason, Guðmundur. "WWI U-boat commanders: Rudolf Gebeschus". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 1 February 2015.
  7. Helgason, Guðmundur. "WWI U-boat commanders: Karl Stöter". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 1 February 2015.
  8. Gröner 1991, pp. 51.
  9. Helgason, Guðmundur. "Ships hit by UB 35". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 1 February 2015.

Bibliography
  • Bendert, Harald (2000). Die UB-Boote der Kaiserlichen Marine, 1914-1918. Einsätze, Erfolge, Schicksal (in German). Hamburg: Verlag E.S. Mittler & Sohn GmbH. ISBN 3-8132-0713-7.CS1 maint: ref=harv (link)
  • Gröner, Erich; Jung, Dieter; Maass, Martin (1991). U-boats and Mine Warfare Vessels. German Warships 1815–1945. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4.
  • Rössler, Eberhard (1979). U-Bootbau bis Ende des 1. Weltkrieges, Konstruktionen für das Ausland und die Jahre 1935 – 1945. Die deutschen U-Boote und ihre Werften (in German). I. Munich: Bernard & Graefe. ISBN 3-7637-5213-7.CS1 maint: ref=harv (link)

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