SM UB-53 explained

SM UB-53 was a German Type UB III submarine or U-boat in the Imperial German Navy (German: Kaiserliche Marine) during World War I. She was commissioned into the Pola Flotilla of the German Imperial Navy on 21 August 1917 as SM UB-53.

She operated as part of the Pola Flotilla based in Cattaro. UB-53 was sunk by mines of the Otranto Barrage on 3 August 1918 at 39.6667°N 58°W in the Otranto Strait, 10 crew members died.SS Athenia (1914). On 7 April 1918 the submarine saw an airship catch fire accidentally and crash into the sea near the Strait of Otranto with the loss of all hands. It apparently was the German Navy Zeppelin L 59, modified for long-range flights, on the outbound leg of a flight from Yambol, Bulgaria, in an attempt to bomb the Royal Navy base at Malta.^[1]

Construction

See main article: Type UB III submarine. UB-53 was ordered by the GIN on 20 May 1916. She was built by Blohm & Voss, Hamburg and following just under a year of construction, launched at Hamburg on 9 March 1917. UB-53 was commissioned later that same year under the command of Kptlt. Robert Sprenger.Like all Type UB III submarines, UB-53 carried 10 torpedoes and was armed with a 8.82NaN2 deck gun. UB-53 would carry a crew of up to 3 officer and 31 men and had a cruising range of 9040nmi. UB-53 had a displacement of 516lk=inNaNlk=in while surfaced and 651t when submerged. Her engines enabled her to travel at 13.6kn when surfaced and when submerged.

Summary of raiding history

Date	Name	Nationality	Tonnage^[2]	Fate^[3]
17 December 1917	Nina	Greece	126	Sunk
31 December 1917	Lily	Greece	2,993	Sunk
20 February 1918	Taxiarchis	Greece	292	Sunk
26 February 1918	Saida	France	45	Sunk
2 March 1918	Euxeinos	Greece	2,891	Sunk
6 March 1918	Kalgan	United Kingdom	1,862	Sunk
9 April 1918	Aveiro	Portugal	2,209	Sunk
22 April 1918	Kheda Moulekar	France	40	Sunk
22 April 1918	Marshalla	United Kingdom	77	Sunk
22 April 1918	Sadika	France	45	Sunk
22 April 1918	Welbeck Hall	United Kingdom	5,643	Sunk
24 April 1918	Mabrouska	France	256	Sunk
27 April 1918	Azizeh	France	30	Sunk
27 April 1918	Nemaat Kheda	France	40	Sunk

References

Citations

Bibliography

• Book: Bendert, Harald . Die UB-Boote der Kaiserlichen Marine, 1914-1918. Einsätze, Erfolge, Schicksal . . Verlag E.S. Mittler & Sohn GmbH. 2000 . 3-8132-0713-7 . German.
• Book: Gröner. Erich. Jung. Dieter. Maass. Martin. Thomas. Keith. Magowan. Rachel. 1991. U-boats and Mine Warfare Vessels. 2. German Warships 1815–1945. London. Conway Maritime Press. 0-85177-593-4. CITEREFGröner1991.
• Book: Rössler . Eberhard . Die deutschen U-Boote und ihre Werften: eine Bilddokumentation über den deutschen U-Bootbau; in zwei Bänden . 1979 . . . I. 3-7637-5213-7. de.

Notes and References

1. Whitehouse, Arch, The Zeppelin Fighters, New York: Ace Books, 1966, no ISBN, p. 236.
2. Tonnages are in gross register tons
3. ub53. UB-53. 1boat. 5 December 2014.