SM UC-77

Last updated

History
War Ensign of Germany 1903-1918.svg German Empire
NameUC-77
Ordered12 January 1916 [1]
Builder AG Vulcan, Hamburg [2]
Yard number82 [1]
Launched2 December 1916 [1]
Commissioned29 December 1916 [1]
FateSunk by mine, 11 July 1918 [1]
General characteristics [3]
Class and type German Type UC II submarine
Displacement
  • 410 t (400 long tons), surfaced
  • 493 t (485 long tons), submerged
Length
Beam
  • 5.22 m (17 ft 2 in) o/a
  • 3.65 m (12 ft) pressure hull
Draught3.65 m (12 ft)
Propulsion
Speed
  • 11.8 knots (21.9 km/h; 13.6 mph), surfaced
  • 7.3 knots (13.5 km/h; 8.4 mph), submerged
Range
  • 8,660 nautical miles at 7 knots (13 km/h; 8.1 mph), surfaced
  • (16,040 km at 13 km/h)
  • 52 nautical miles at 4 knots (7.4 km/h; 4.6 mph), submerged
  • (96 km at 7.4 km/h)
Test depth50 m (160 ft)
Complement26
Armament
Notes30-second diving time
Service record
Part of:
  • I Flotilla
  • 5 March – 4 July 1917
  • Flandern / Flandern II Flotilla
  • 4 July 1917 – 14 July 1918
Commanders:
  • Kptlt. Reinhard von Rabenau [4]
  • 29 December 1916 – 29 January 1918
  • Oblt.z.S. Johannes Ries [5]
  • 30 January – 14 July 1918
Operations: 13 patrols
Victories:
  • 33 merchant ships sunk
    (50,498  GRT)
  • 1 auxiliary warship sunk
    (245  GRT)
  • 7 merchant ships damaged
    (23,734  GRT)

SM UC-77 was a German Type UC II minelaying submarine or U-boat in the German Imperial Navy (German : Kaiserliche Marine) during World War I. The U-boat was ordered on 12 January 1916 and was launched on 2 December 1916. She was commissioned into the German Imperial Navy on 29 December 1916 as SM UC-77. [Note 1] In 13 patrols UC-77 was credited with sinking 34 ships, either by torpedo or by mines laid. UC-77 was mined and sunk off Flanders on 11 July 1918. [1]

Contents

Design

A German Type UC II submarine, UC-77 had a displacement of 410 tonnes (400 long tons) when at the surface and 493 tonnes (485 long tons) while submerged. She had a length overall of 50.45 m (165 ft 6 in), a beam of 5.22 m (17 ft 2 in), and a draught of 3.65 m (12 ft). The submarine was powered by two six-cylinder four-stroke diesel engines each producing 290–300 metric horsepower (210–220 kW; 290–300 shp) (a total of 580–600 metric horsepower (430–440 kW; 570–590 shp)), two electric motors producing 620 metric horsepower (460 kW; 610 shp), and two propeller shafts. She had a dive time of 30 seconds and was capable of operating at a depth of 50 metres (160 ft). [3]

The submarine had a maximum surface speed of 11.8 knots (21.9 km/h; 13.6 mph) and a submerged speed of 7.3 knots (13.5 km/h; 8.4 mph). When submerged, she could operate for 52 nautical miles (96 km; 60 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 8,660 to 10,230 nautical miles (16,040 to 18,950 km; 9,970 to 11,770 mi) at 7 knots (13 km/h; 8.1 mph). UC-77 was fitted with six 100 centimetres (39 in) mine tubes, eighteen UC 200 mines, three 50 centimetres (20 in) torpedo tubes (one on the stern and two on the bow), seven torpedoes, and one 8.8 cm (3.5 in) Uk L/30 deck gun. Her complement was twenty-six crew members. [3]

Summary of raiding history

DateNameNationalityTonnage [Note 2] Fate [6]
24 March 1917 Grenmar Flag of Norway.svg  Norway 1,438Sunk
25 March 1917 Prince of Wales Civil Ensign of the United Kingdom.svg  United Kingdom 158Sunk
27 March 1917 Galatia Civil Ensign of the United Kingdom.svg  United Kingdom 150Sunk
27 March 1917 Nova Flag of Norway.svg  Norway 1,034Sunk
27 March 1917 Sandvik Flag of Norway.svg  Norway 591Sunk
28 March 1917 Moulmein Civil Ensign of the United Kingdom.svg  United Kingdom 151Sunk
28 March 1917 Tizona Flag of Norway.svg  Norway 1,021Sunk
30 March 1917 Petrel Civil Ensign of the United Kingdom.svg  United Kingdom 151Sunk
3 May 1917 Glen Tanar Civil Ensign of the United Kingdom.svg  United Kingdom 817Sunk
4 May 1917 Herrington Civil Ensign of the United Kingdom.svg  United Kingdom 1,258Sunk
4 May 1917 Vale Flag of Norway.svg  Norway 720Sunk
4 May 1917 Wolseley Civil Ensign of the United Kingdom.svg  United Kingdom 159Damaged
5 May 1917 Odense Flag of Denmark.svg  Denmark 1,756Sunk
6 May 1917 Kaparika Flag of Norway.svg  Norway 1,232Sunk
3 June 1917 Virgilia Civil Ensign of the United Kingdom.svg  United Kingdom 209Sunk
6 June 1917 Anton Flag of Sweden.svg  Sweden 1,568Sunk
6 June 1917 Harald Klitgaard Flag of Denmark.svg  Denmark 1,799Sunk
11 July 1917 Vordingborg Flag of Denmark.svg  Denmark 2,155Sunk
13 July 1917 Ascain Flag of France.svg  France 1,686Sunk
8 August 1917 Berlengas Flag of Portugal.svg  Portugal 3,548Sunk
11 August 1917 Sonnie Civil Ensign of the United Kingdom.svg  United Kingdom 2,642Sunk
7 September 1917 Scottish Prince Civil Ensign of the United Kingdom.svg  United Kingdom 2,897Damaged
10 September 1917 Ioanna Civil Ensign of the United Kingdom.svg  United Kingdom 3,459Damaged
15 October 1917 Leander Civil Ensign of the United Kingdom.svg  United Kingdom 2,793Damaged
19 October 1917 Eldra Civil Ensign of the United Kingdom.svg  United Kingdom 227Sunk
17 November 1917 Adolph Andersen Flag of Denmark.svg  Denmark 981Sunk
18 November 1917 Antwerpen Civil Ensign of the United Kingdom.svg  United Kingdom 1,637Sunk
18 November 1917 Gisella Civil Ensign of the United Kingdom.svg  United Kingdom 2,502Sunk
19 November 1917 Amiral Zede Flag of France.svg  France 5,980Sunk
19 November 1917 Clangula Civil Ensign of the United Kingdom.svg  United Kingdom 1,754Sunk
19 November 1917 Robert Brown Civil Ensign of the United Kingdom.svg  United Kingdom 119Sunk
30 November 1917 Remoqueur N° 8 Flag of France.svg  France 250Sunk
7 March 1918 Cliffside Civil Ensign of the United Kingdom.svg  United Kingdom 4,969Damaged
10 March 1918 Skrymer Flag of Norway.svg  Norway 1,476Sunk
18 March 1918 Baygitano Civil Ensign of the United Kingdom.svg  United Kingdom 3,073Sunk
15 April 1918 City of Winchester Civil Ensign of the United Kingdom.svg  United Kingdom 7,981Damaged
15 April 1918 Pomeranian Civil Ensign of the United Kingdom.svg  United Kingdom 4,241Sunk
6 June 1918 Huntsland Government Ensign of the United Kingdom.svg  United Kingdom 2,871Sunk
9 June 1918 Moidart Civil Ensign of the United Kingdom.svg  United Kingdom 1,303Sunk
10 June 1918 Saint Barthelemy Flag of France.svg  France 1,476Damaged
14 June 1918 HMT Princess Olga Naval Ensign of the United Kingdom.svg  Royal Navy 245Sunk

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SM <i>UC-21</i> German Type UC II minelaying submarine

SM UC-21 was a German Type UC II minelaying submarine or U-boat in the German Imperial Navy during World War I. The U-boat was ordered on 29 August 1915 and was launched on 1 April 1916. She was commissioned into the German Imperial Navy on 12 September 1916 as SM UC-21.

SM UC-22 was a German Type UC II minelaying submarine or U-boat in the German Imperial Navy during World War I. The U-boat was ordered on 29 August 1915 and was launched on 1 February 1916. She was commissioned into the German Imperial Navy on 30 June 1916 as SM UC-22. In 15 patrols UC-22 was credited with sinking 23 ships, either by torpedo or by mines laid. UC-22 was surrendered to France on 3 February 1919 and was broken up at Landerneau in July 1921.

SM UC-23 was a German Type UC II minelaying submarine or U-boat in the German Imperial Navy during World War I. The U-boat was ordered on 29 August 1915 and was launched on 29 February 1916. She was commissioned into the German Imperial Navy on 17 July 1916 as SM UC-23. In 17 patrols UC-23 was credited with sinking 46 ships, either by torpedo or by mines laid. UC-23 was surrendered at Sevastopol on 25 November 1918 and broken up at Bizerta in August 1921.

SM UC-25 was a German Type UC II minelaying submarine or U-boat in the German Imperial Navy during World War I. The U-boat was ordered on 29 August 1915 and was launched on 10 June 1916. She was commissioned into the German Imperial Navy on 28 June 1916 as SM UC-25. In 13 patrols UC-25 was credited with sinking 21 ships, either by torpedo or by mines laid. From March to September 1918, she was commanded by Karl Dönitz, later grand admiral in charge of all U-boats in World War II. UC-25 was scuttled at Pola on 28 October 1918 on the surrender of Austria-Hungary.

SM UC-31 was a German Type UC II minelaying submarine or U-boat in the German Imperial Navy during World War I. The U-boat was ordered on 29 August 1915 and was launched on 7 August 1916. She was commissioned into the German Imperial Navy on 2 September 1916 as SM UC-31. In 13 patrols UC-31 was credited with sinking 38 ships, either by torpedo or by mines laid. UC-31 was surrendered on 26 November 1918 and broken up at Canning Town in 1922.

SM UC-33 was a German Type UC II minelaying submarine or U-boat in the German Imperial Navy during World War I. The U-boat was ordered on 29 August 1915 and was launched on 26 August 1916. She was commissioned into the German Imperial Navy on 25 September 1916 as SM UC-33. In seven patrols UC-33 was credited with sinking 36 ships, either by torpedo or by mines laid. UC-33 was shelled and then rammed by patrol boat PC61 captained by Frank Worsley at position 51°55′N6°14′W in St. George's Channel on 26 September 1917.

SM UC-35 was a German Type UC II minelaying submarine or U-boat in the German Imperial Navy during World War I. The U-boat was ordered on 20 November 1915 and was launched on 6 May 1916. She was commissioned into the German Imperial Navy on 2 October 1916 as SM UC-35. In eleven patrols UC-35 was credited with sinking 48 ships, either by torpedo or by mines laid. UC-35 was sunk by gunfire from the French torpedo boat Aigli southwest of Sardinia on 16 May 1918 at 39°48′N7°42′E.

SM UC-45 was a German Type UC II minelaying submarine or U-boat in the German Imperial Navy during World War I. The U-boat was ordered on 20 November 1915 and was launched on 20 October 1916. She was commissioned into the German Imperial Navy on 18 November 1916 as SM UC-45. In five patrols UC-45 was credited with sinking 12 ships, either by torpedo or by mines laid. UC-45 sank in a diving accident on 17 September 1917 in the North Sea. The German salvage vessel Vulkan raised the wreck and UC-45 re-entered service on 24 October 1918. She was surrendered on 24 November 1918 and broken up at Preston in 1919–20.

SM UC-47 was a German Type UC II minelaying submarine or U-boat in the German Imperial Navy during World War I. The U-boat was ordered on 20 November 1915, laid down on 1 February 1916, and was launched on 30 August 1916. She was commissioned into the German Imperial Navy on 13 October 1916 as SM UC-47. In 13 patrols UC-47 was credited with sinking 58 ships, either by torpedo or by mines laid. UC-47 was rammed and depth charged by British patrol boat P-57, under the command of H.C. Birnie, off Flamborough Head on 18 November 1917. UC-47 went down with all hands.

SM UC-52 was a German Type UC II minelaying submarine or U-boat in the German Imperial Navy during World War I. The U-boat was ordered on 12 January 1916 and was launched on 23 January 1917. She was commissioned into the German Imperial Navy on 15 March 1917 as SM UC-52. In seven patrols UC-52 was credited with sinking 18 ships, either by torpedo or by mines laid. She notably sank the Italian troopship Verona, killing 880 soldiers. UC-52 was surrendered on 16 January 1919 and broken up at Morecambe.

SM UC-54 was a German Type UC II minelaying submarine or U-boat in the German Imperial Navy during World War I. The U-boat was ordered on 12 January 1916 and was launched on 20 March 1917. She was commissioned into the German Imperial Navy on 10 May 1917 as SM UC-54. In eight patrols UC-54 was credited with sinking 18 ships, either by torpedo or by mines laid. UC-54 was scuttled at Trieste on 28 October 1918 on the surrender of Austria-Hungary.

SM UC-59 was a German Type UC II minelaying submarine or U-boat in the German Imperial Navy during World War I. The U-boat was ordered on 12 January 1916, laid down on 25 March 1916, and was launched on 28 September 1916. She was commissioned into the German Imperial Navy on 12 May 1917 as SM UC-59. In nine patrols UC-59 was credited with sinking eight ships, either by torpedo or by mines laid. UC-59 was surrendered on 21 November 1918 and broken up at Bo'ness in 1919 – 20.

SM UC-65 was a German Type UC II minelaying submarine or U-boat in the German Imperial Navy during World War I. The U-boat was ordered on 12 January 1916 and was launched on 8 July 1916. She was commissioned into the German Imperial Navy on 7 November 1916 as SM UC-65. In eleven patrols UC-65 was credited with sinking 106 ships, either by torpedo or by mines laid. UC-65 was torpedoed and sunk by HMS C15 on 3 November 1917.

SM UC-71 was a German Type UC II minelaying submarine or U-boat in the German Imperial Navy during World War I. The U-boat was ordered on 12 January 1916 and was launched on 12 August 1916. She was commissioned into the German Imperial Navy on 28 November 1916 as SM UC-71. In 19 patrols UC-71 was credited with sinking 63 ships, either by torpedo or by mines laid. UC-71 sank on 20 February 1919 in the North Sea while on her way to be surrendered.

SM UC-73 was a German Type UC II minelaying submarine or U-boat in the German Imperial Navy during World War I. The U-boat was ordered on 12 January 1916 and was launched on 26 August 1916. She was commissioned into the German Imperial Navy on 24 December 1916 as SM UC-73. In ten patrols UC-73 was credited with sinking 16 ships, either by torpedo or by mines laid. UC-73 was surrendered on 6 January 1919 and broken up at Brighton Ferry in 1919 – 20.

SM UC-74 was a German Type UC II minelaying submarine or U-boat in the German Imperial Navy during World War I. The U-boat was ordered on 12 January 1916 and was launched on 19 October 1916. She was commissioned into the German Imperial Navy on 26 November 1916 as SM UC-74. In ten patrols UC-74 was credited with sinking 37 ships, either by torpedo or by mines laid. UC-74 was interned at Barcelona on 21 November 1918 when she ran out of fuel. The U-boat was surrendered to France on 26 March 1919 and was broken up at Toulon in July 1921.

SM UC-76 was a German Type UC II minelaying submarine or U-boat in the German Imperial Navy during World War I. The U-boat was ordered on 12 January 1916 and was launched on 25 November 1916. She was commissioned into the German Imperial Navy on 17 December 1916 as SM UC-76. In two patrols UC-76 was credited with sinking 15 ships, either by torpedo or by mines laid. UC-76 was surrendered on 1 December 1918 and broken up at Brighton Ferry in 1919 – 20.

SM UC-79 was a German Type UC II minelaying submarine or U-boat in the German Imperial Navy during World War I.

References

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.

Citations

  1. 1 2 3 4 5 6 Helgason, Guðmundur. "WWI U-boats: UC 77". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 23 February 2009.
  2. ↑ Tarrant, p. 173.
  3. 1 2 3 Gröner 1991, pp. 31–32.
  4. ↑ Helgason, Guðmundur. "WWI U-boat commanders: Reinhard von Rabenau (Royal House Order of Hohenzollern)". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 4 March 2015.
  5. ↑ Helgason, Guðmundur. "WWI U-boat commanders: Johannes Ries". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 4 March 2015.
  6. ↑ Helgason, Guðmundur. "Ships hit by UC 77". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 4 March 2015.

Bibliography

  • Bendert, Harald (2001). Die UC-Boote der Kaiserlichen Marine 1914–1918. Minenkrieg mit U-Booten (in German). Hamburg, Berlin, Bonn: Mittler. ISBN   3-8132-0758-7.
  • Gröner, 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.
  • Tarrant, V. E. (1989). The U-Boat Offensive: 1914–1945. Annapolis, Maryland: Naval Institute Press. ISBN   978-0-87021-764-7. OCLC   20338385.
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