SM U-22 (Austria-Hungary)

The design for U-22 was based on the Havmanden class of the Royal Danish Navy (Havmanden pictured)
History
Austria-Hungary
NameSM U-22
Ordered27 March 1915
BuilderHungarian UBAG yard, Fiume
Laid downMid 1915
Launched27 January 1917
Commissioned23 November 1917
FateCeded to France, scrapped 1920
Service record
Commanders:
  • Josef Holub
  • 25 February – 29 December 1917
  • Friedrich Sterz
  • 29 December 1917 – 31 October 1918
Victories: None
General characteristics
TypeU-20-class submarine
Displacement
  • 173 t, surfaced
  • 210 t, submerged
Length127 ft 2 in (38.76 m)
Beam13 ft (4.0 m)
Draft9 ft (2.7 m)
Propulsion
Speed
  • 12 knots (22 km/h) surfaced
  • 9 knots (17 km/h) submerged
Range
  • 1,400 nautical miles (2,600 km) at 10 knots (19 km/h) surfaced
  • 23 nautical miles (43 km) at 8 knots (15 km/h) submerged
Complement18
Armament

SM U-22 or U-XXII was a U-20-class submarine or U-boat built for and operated by the Austro-Hungarian Navy (German: Kaiserliche und Königliche Kriegsmarine or K.u.K. Kriegsmarine) during the First World War. The design for U-22 was based on submarines of the Royal Danish Navy's Havmanden class (three of which had been built in Austria-Hungary), and was largely obsolete by the beginning of the war.

U-22 was just over 127 feet (39 m) long and was armed with two bow torpedo tubes, a deck gun, and a machine gun. The submarine was laid down in mid 1915 and launched in January 1917. The still unfinished U-boat sank in the harbor at Fiume in June but was raised, repaired, and relaunched in October. After her commissioning in November, U-22 patrolled off the Po River estuary and, later, in the northern Adriatic out of Trieste.

After undergoing months of repairs for her failed electric motor in mid 1918, U-22 returned to duty and patrolled off the Montenegrin coast out of Cattaro in August. At Cattaro at the end of World War I, U-22 was ceded to France as a war reparation and scrapped in 1920. U-22 had no wartime successes.