SM UC-57

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Memorial of SM UC-57.
UC-57's memorial; Major Nordström lay the Jäger association's wreath in 1934
Career (German Empire)
Name: UC-57
Ordered: 12 January 1916[1]
Builder: Kaiserliche Werft, Danzig[2]
Yard number: 39[1]
Laid down: 14 March 1916[1]
Launched: 7 September 1916[1]
Commissioned: 22 January 1917[1]
Fate: disappeared after 18 November 1917; probably sunk by mine in Gulf of Finland[1]
General characteristics
Class & type: German Type UC II submarine
Displacement: 415 t (457 short tons), surfaced[2]
498 t (549 short tons), submerged
Length: 165 ft 9 in (50.52 m)[2]
Beam: 17 ft 4 in (5.28 m)[2]
Draft: 12 ft 2 in (4 m)[3]
Propulsion: 2 × propeller shafts
2 × 6-cylinder, 4-stroke diesel engines, 500 bhp (370 kW)[3]
2 × electric motors, 460 shp (340 kW)[3]
Speed: 11.6 knots (21.5 km/h), surfaced[2]
7.3 knots (13.5 km/h), submerged
Endurance: 8,660 nautical miles at 7 knots, surfaced[3]
(16,040 km at 13 km/h)
52 nautical miles at 4 knots, submerged[3]
(96 km at 7.4 km/h)
Test depth: 50 m (160 ft)[3]
Complement: 26[3]
Armament: 6 × 100 cm (39.4 in) mine tubes[3]
18 × UC 200 mines
3 × 50 cm (19.7 in) torpedo tubes (2 bow/external; one stern)
7 × torpedoes
1 × 8.8 cm (3.46 in) KL/30 deck gun[2]
Notes: 30-second diving time[2]

SM UC-57 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, laid down on 14 March 1916, and was launched on 7 September 1916. She was commissioned into the German Imperial Navy on 22 January 1917 as SM UC-57.[Note 1] In 7 patrols UC-57 was credited with sinking 5 ships, either by torpedo or by mines laid.

UC-57 disappeared in 1917 after landing a party of Finnish Jägers and 4 tons of munitions on the island of Hamnskär, circa 30 km from Loviisa, on 18 November. UC-57 was going to remain on the seabed overnight and then return to Germany but never arrived. She was probably sunk by a Russian mine.[1]

Notes[edit]

  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.

References[edit]

  1. ^ a b c d e f g Helgason, Guðmundur. "WWI U-boats: UC-57". U-Boat War in World War I. Uboat.net. Retrieved 23 February 2009. 
  2. ^ a b c d e f g Tarrant, p. 173.
  3. ^ a b c d e f g h Gardiner, p. 182.

Bibliography[edit]


Coordinates: 59°00′N 23°00′E / 59.000°N 23.000°E / 59.000; 23.000