Type U 87 submarine

Last updated
Class overview
Builders Germaniawerft, Kiel and Kaiserliche Werft Danzig
OperatorsWar Ensign of Germany 1903-1918.svg  Imperial German Navy
Preceded by Type U 81
Succeeded by Type U 93
Completed6
Lost4
General characteristics [1]
Class and typeType U 87 submarine
Displacement
  • 757  t (745 long tons) surfaced
  • 998 t (982 long tons) submerged
Length
Beam
  • 6.20 m (20 ft 4 in) (oa)
  • 4.18 m (13 ft 9 in) (pressure hull)
Height9.35 m (30 ft 8 in)
Draught3.88 m (12 ft 9 in)
Installed power
  • 2 × 2,400  PS (1,765  kW; 2,367  shp) surfaced
  • 2 × 1,200 PS (883 kW; 1,184 shp) submerged
Propulsion2 shafts, 2 × 1.66 m (5 ft 5 in) propellers
Speed
  • 16.8 knots (31.1 km/h; 19.3 mph) surfaced
  • 9.1 knots (16.9 km/h; 10.5 mph) submerged
Range
  • 11,380  nmi (21,080 km; 13,100 mi) at 8 knots (15 km/h; 9.2 mph) surfaced
  • 56 nmi (104 km; 64 mi) at 5 knots (9.3 km/h; 5.8 mph) submerged
Test depth50 m (164 ft 1 in)
Complement4 officers, 32 enlisted
Armament

Type 87 was a class of U-boats built during World War I by the Kaiserliche Marine.

Contents

Design

Type 87 U-boats carried 16 torpedoes and had various arrangements of deck guns. U 87 and U 89 had one 10.5 cm/45 and one 8.8 cm deck gun, U 88 was probably equally armed. U 90 - U 92 were armed with one 10.5 cm/45 gun (140-240 rounds).[ citation needed ]

They carried a crew of 36 and had excellent seagoing abilities with a cruising range of approximately 11,220 nautical miles (20,780 km; 12,910 mi). Many arrangements from the Type 81, 87, and 93 were also seen on the World War II Type IX U-boats when their design work took place 20 years later.[ citation needed ]

Compared to the previous type 81, the 87s were 4.26 metres (14.0 ft) shorter, while the pressure hull was shortened .48 metres (1 ft 7 in). [2] They were 1.2 knots (2.2 km/h; 1.4 mph) slower on the surface, and .5 knots (0.93 km/h; 0.58 mph) slower submerged, but increased range by 180 nautical miles (330 km; 210 mi) to 11,380 nautical miles (21,080 km; 13,100 mi) at 8 knots. They carried 16 torpedoes instead of 12. As with the previous type, there was a mixture of guns. Crew size was increased by 1 to 36.

Compared to the following type 93, the 87s were 5.75 metres (18.9 ft) shorter, with the pressure hull 5.98 metres (19.6 ft) shorter and 105 tons lighter. [3] Their range was 2,288 nautical miles (4,237 km; 2,633 mi) longer, but speed was 1.2 knots (2.2 km/h; 1.4 mph) slower on the surface and unchanged submerged.

Service history

Type 87 boats were responsible for sinking 2.218% of all allied shipping sunk during the war, taking a total of 284,961 combined tons. They also damaged 36,595 combined tons.[ citation needed ]

BoatSunkDamagedTotal
U-87 59,8287,63867,466
U-88 39,38284540,227
U-89 8,4963248,820
U-90 74,1758,59482,769
U-91 87,11911,82198,940
U-92 15,9617,37323,334
Totals284,96136,595321,556

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SM <i>UC-1</i>

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SM U-97 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-97 was engaged in the naval warfare and took part in the First Battle of the Atlantic. The German unit sank by accident on her way to surrender at position 53°25′N3°10′E.

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SM U-107 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-107 was engaged in the naval warfare and took part in the First Battle of the Atlantic.

SM <i>U-108</i>

SM U-108 was a submarine in the Imperial German Navy in World War I, taking part in the First Battle of the Atlantic.

SM U-113 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-113 was engaged in the naval warfare and took part in the First Battle of the Atlantic.

SM U-114 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-114 was engaged in the naval warfare and took part in the First Battle of the Atlantic.

SM U-160 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-160 was engaged in the naval warfare and took part in the First Battle of the Atlantic.

SM U-162 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-162 was engaged in the naval warfare and took part in the First Battle of the Atlantic.

Type 81 was a class of U-boats built during World War I by the Kaiserliche Marine.

Type 93 was a class of U-boats built during World War I by the Kaiserliche Marine.

References

  1. ↑ Gröner 1991, pp. 12–14.
  2. ↑ Helgason, Guðmundur. "WWI U-boat Types: Type U 81". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 21 January 2015.
  3. ↑ Helgason, Guðmundur. "WWI U-boat Types: Type 93". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 21 January 2015.

Bibliography

Further reading

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