For other ships named German submarine U-75, see German submarine U-75 (disambiguation).
UB-75
CountryGerman Empire
Ordered23 September 1916[1]
BuilderBlohm & Voss, Hamburg
Original cost3,338,000 German Papiermark
Yard number304
Launched5 May 1917[2]
Commissioned11 September 1917[2]
FateStruck mine 10 December 1917 at 54°5′N 0°10′E, all hands lost.[2]
SM UB-75
ClassType UB III submarine
Displacement
  • 516 t (508 long tons) surfaced
  • 648 t (638 long tons) submerged
Length55.30 m (181 ft 5 in) (o/a)
Beam5.80 m (19 ft)
Draught3.68 m (12 ft 1 in)
Propulsion
Speed
  • 13.6 knots (25.2 km/h; 15.7 mph) surfaced
  • 7.8 knots (14.4 km/h; 9.0 mph) submerged
Range
  • 8,680 nmi (16,080 km; 9,990 mi) at 8 knots (15 km/h; 9.2 mph) surfaced
  • 55 nmi (102 km; 63 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth50 m (160 ft)
Complement3 officers, 31 men[2]
Armament
SM UB-75
Partof
  • V Flotilla
  • 24 October – 10 December 1917
Commanders
  • Oblt.z.S. Franz Walther[3]
  • 11 September – 10 December 1917
Operations2 patrols
Victories
  • 6 merchant ships sunk
    ()
  • 1 merchant ship damaged
    ()

SM UB-75 was a German Type UB III submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. She was commissioned into the German Imperial Navy on 11 September 1917 as SM UB-75.[Note 1]

UB-75 was serving in the Flanders Flotillas. On 10 December 1917 she was lost with all hands after hitting a mine.[2]

Construction

Main article: Type UB III submarine

She was built by AG Vulcan of Hamburg and following just under a year of construction, launched at Hamburg on 5 May 1917. UB-75 was commissioned later that same year . Like all Type UB III submarines, UB-75 carried 10 torpedoes and was armed with a 8.8 cm (3.46 in) deck gun. UB-75 would carry a crew of up to 3 officer and 31 men and had a cruising range of 8,680 nautical miles (16,080 km; 9,990 mi). UB-75 had a displacement of 516 t (508 long tons) while surfaced and 648 t (638 long tons) when submerged. Her engines enabled her to travel at 13.6 knots (25.2 km/h; 15.7 mph) when surfaced and 7.8 knots (14.4 km/h; 9.0 mph) when submerged.

Summary of raiding history

DateNameNationalityTonnage[Note 2]Fate[4]
4 November 1917LucidaUnited Kingdom1,477Damaged
9 November 1917Frithjof EideNorway1,207Sunk
5 December 1917AigburthUnited Kingdom824Sunk
6 December 1917LedaNetherlands1,140Sunk
7 December 1917HighgateUnited Kingdom1,780Sunk
8 December 1917LampadaUnited Kingdom2,230Sunk
9 December 1917VenetiaUnited Kingdom3,596Sunk

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. ^ Tonnages are in gross register tons

Citations

  1. ^ Rössler 1979, p. 65.
  2. ^ Gröner 1991, pp. 25–30.
  3. ^ 385. Retrieved 4 February 2015.
  4. ^ ub75. Retrieved 4 February 2015.

Bibliography