SM ''UB-30'') and combined with the ''U'' for ''Unterseeboot'' would be translated as ''His Majesty's Submarine''., group=Note was a German Type UB II submarine or

U-boat U-boats were naval submarines operated by Germany, particularly in the First and Second World Wars. Although at times they were efficient fleet weapons against enemy naval warships, they were most effectively used in an economic warfare ro ...

in the

German Imperial Navy The Imperial German Navy or the Imperial Navy () was the navy of the German Empire, which existed between 1871 and 1919. It grew out of the small Prussian Navy (from 1867 the North German Federal Navy), which was mainly for coast defence. Wilhel ...

(german: Kaiserliche Marine) during

World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fightin ...

. The U-boat was ordered on 22 July 1915 and launched on 16 November 1915. She was commissioned into the German Imperial Navy on 18 March 1916 as SM ''UB-30''. The submarine sank 18 ships in 19 patrols. They included the William Cory & Son collier SS ''Vernon'' in the

North Sea The North Sea lies between Great Britain, Norway, Denmark, Germany, the Netherlands and Belgium. An epeiric sea, epeiric sea on the European continental shelf, it connects to the Atlantic Ocean through the English Channel in the south and the ...

off

Spurn Spurn is a narrow sand tidal island located off the tip of the coast of the East Riding of Yorkshire, England that reaches into the North Sea and forms the north bank of the mouth of the Humber Estuary. It was a spit with a semi-permanent con ...

on 31 August 1917 and the Witherington and Everett Steam Ship Company collier SS ''Lightfoot'' in the

English Channel The English Channel, "The Sleeve"; nrf, la Maunche, "The Sleeve" (Cotentinais) or ( Jèrriais), (Guernésiais), "The Channel"; br, Mor Breizh, "Sea of Brittany"; cy, Môr Udd, "Lord's Sea"; kw, Mor Bretannek, "British Sea"; nl, Het Kana ...

off

Selsey Bill Selsey Bill is a headland into the English Channel on the south coast of England in the county of West Sussex. The southernmost town in Sussex is Selsey which is at the end of the Manhood Peninsula and ''Selsey Bill'' is situated on the town's so ...

on 16 March 1918. ''UB-30'' was sunk by two depth charges from HMS Landrail south of

Goodwin Sands Goodwin Sands is a sandbank at the southern end of the North Sea lying off the Deal coast in Kent, England. The area consists of a layer of approximately depth of fine sand resting on an Upper Chalk platform belonging to the same geologi ...

at on 13 August 1918.

Design

German Type UB II submarine The UB II type submarine was a class of U-boat built during World War I by the German Imperial Navy. They were enlarged from the preceding type UB I and were more effective vessels. The boats were a single hull design with a 50-metre maximum div ...

, ''UB-30'' had a displacement of when at the surface and while submerged. She had a total length of , a

beam Beam may refer to: Streams of particles or energy *Light beam, or beam of light, a directional projection of light energy **Laser beam *Particle beam, a stream of charged or neutral particles **Charged particle beam, a spatially localized grou ...

of , and a draught of . The submarine was powered by two Benz six-cylinder diesel engines producing a total , two

Siemens-Schuckert Siemens-Schuckert (or Siemens-Schuckertwerke) was a German electrical engineering company headquartered in Berlin, Erlangen and Nuremberg that was incorporated into the Siemens AG in 1966. Siemens Schuckert was founded in 1903 when Siemens & H ...

electric motors producing , and one

propeller shaft A drive shaft, driveshaft, driving shaft, tailshaft (Australian English), propeller shaft (prop shaft), or Cardan shaft (after Girolamo Cardano) is a component for transmitting mechanical power and torque and rotation, usually used to connect ...

. She was capable of operating at depths of up to . The submarine had a maximum surface speed of and a maximum submerged speed of . When submerged, she could operate for at ; when surfaced, she could travel at . ''UB-30'' was fitted with two

torpedo tube A torpedo tube is a cylindrical device for launching torpedoes. There are two main types of torpedo tube: underwater tubes fitted to submarines and some surface ships, and deck-mounted units (also referred to as torpedo launchers) installed aboa ...

s, four torpedoes, and one Uk L/30

deck gun A deck gun is a type of naval artillery mounted on the deck of a submarine. Most submarine deck guns were open, with or without a shield; however, a few larger submarines placed these guns in a turret. The main deck gun was a dual-purpose ...

. She had a

complement A complement is something that completes something else. Complement may refer specifically to: The arts * Complement (music), an interval that, when added to another, spans an octave ** Aggregate complementation, the separation of pitch-clas ...

of twenty-one crew members and two officers and a 42-second dive time.

Summary of raiding history

References

Notes

Citations

Bibliography

* * * {{DEFAULTSORT:Ub030 1915 ships Ships built in Hamburg World War I submarines of Germany German Type UB II submarines U-boats commissioned in 1916 Maritime incidents in 1918 U-boats sunk in 1918 U-boats sunk by depth charges U-boats sunk by British warships World War I shipwrecks in the North Sea Ships lost with all hands