Beginning in October 1914, she was commanded by Kaptlt. von Hennig.[2]
On her third mission, on 23 November U-18 penetrated the fleet anchorage of Scapa Flow via Hoxa Sound, following a steamer through the boom and entering the anchorage with little difficulty. However, the fleet was absent, being dispersed in anchorages on the west coast of Scotland and Ireland. As U-18 was making her way back out through Hoxa Sound to the open sea, her periscope was spotted by a guard boat. The trawler Dorothy Gray altered course and rammed the periscope, rendering it unserviceable. U-18 then suffered a failure of her diving plane motor and the boat became unable to maintain her depth, at one point even impacting the seabed. She was rammed a second time by destroyer HMS Garry and eventually, her captain was forced to surface and scuttle his command just outside the Hoxa Gate; all crew members, except one, were picked up by British boats.[3][4] One crew member perished, while the remaining 22 were interned as prisoners of war.[5]
^"SM" stands for "Seiner Majestät" (English: His Majesty's) and combined with the U for Unterseeboot would be translated as His Majesty's Submarine.
Citationsedit
^Helgason, Guðmundur. "WWI U-boat commanders: Heinrich von Henning". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 22 December 2014.
^Koerver, Hans Joachim (2008). Room 40: German Naval Warfare 1914-1918.
^Messimer, Dwight R. (2002). Verschollen: World War I U-boat Losses. Naval Institute Press. pp. 36–40. ISBN9781557504753.
^Helgason, Guðmundur. "WWI U-boats: U 18". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net.
^Willmott, H.P. (2009). The Last Century of Sea Power: From Port Arthur to Chanak, 1894-1922. Indiana University Press. p. 376. ISBN9780253352149.
Bibliographyedit
Gröner, Erich; Jung, Dieter; Maass, Martin (1991). U-boats and Mine Warfare Vessels. German Warships 1815–1945. Vol. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN0-85177-593-4.
Spindler, Arno (1966) [1932]. Der Handelskrieg mit U-Booten. 5 Vols. Berlin: Mittler & Sohn. Vols. 4+5, dealing with 1917+18, are very hard to find: Guildhall Library, London, has them all, also Vol. 1-3 in an English translation: The submarine war against commerce.
Beesly, Patrick (1982). Room 40: British Naval Intelligence 1914-1918. London: H Hamilton. ISBN978-0241108642.
Halpern, Paul G. (1918). A Naval History of World War I. New York: Routledge. ISBN978-1857284980.
Roessler, Eberhard (1997). Die Unterseeboote der Kaiserlichen Marine. Bonn: Bernard & Graefe. ISBN978-3763759637.
Schroeder, Joachim (2002). Die U-Boote des Kaisers. Bonn: Bernard & Graefe. ISBN978-3763762354.
Koerver, Hans Joachim (2008). Room 40: German Naval Warfare 1914-1918. Vol I., The Fleet in Action. Steinbach: LIS Reinisch. ISBN978-3-902433-76-3.
Koerver, Hans Joachim (2009). Room 40: German Naval Warfare 1914-1918. Vol II., The Fleet in Being. Steinbach: LIS Reinisch. ISBN978-3-902433-77-0.
Kemp, Paul (1997). U-boats destroyed, German submarine losses in the World Wars. London: Arms & Armour Press. p. 9. ISBN1-85409-321-5.
External linksedit
Helgason, Guðmundur. "WWI U-boats: U 18". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net.
Room 40: 2018-10-15 at the Wayback Machine original documents, photos and maps about World War I German submarine warfare and British Room 40 Intelligence from The National Archives, Kew, Richmond, UK.
October 27, 2023
other, ships, with, same, name, german, submarine, note, submarines, serving, imperial, german, navy, world, engaged, commerce, warfare, first, battle, atlantic, second, second, from, right, historygermanynameu, 18orderedmay, 1910builderkaiserliche, werft, dan. For other ships with the same name see German submarine U 18 SM U 18 Note 1 was one of 329 submarines serving in the Imperial German Navy in World War I U 18 engaged in the commerce warfare in the First Battle of the Atlantic SM U 18 second row second from the right HistoryGermanyNameU 18OrderedMay 6 1910BuilderKaiserliche Werft DanzigCost2 333 000 GoldmarkYard number12Laid down27 October 1910Launched25 April 1912Commissioned17 November 1912FateScuttled 23 November 1914 1 deadGeneral characteristicsClass and typeGerman Type U 17 submarineDisplacement564 t 555 long tons surfaced 691 t 680 long tons submergedLength62 35 m 204 ft 7 in Beam6 m 19 ft 8 in Height7 30 m 23 ft 11 in Draught3 40 m 11 ft 2 in Propulsion2 shafts 2 2 Korting 8 cylinder two stroke paraffin motors with 1 400 PS 1 030 kW 1 380 shp 2 AEG electric motors with 1 120 PS 820 kW 1 100 shp 550 rpm surfaced 425 rpm submergedSpeed14 9 knots 27 6 km h 17 1 mph surfaced 9 5 knots 17 6 km h 10 9 mph submergedRange6 700 nmi 12 400 km 7 700 mi at 8 kn surfaced 75 nmi 139 km 86 mi at 5 kn submergedTest depth50 m 164 ft 1 in Boats amp landing craft carried1 dingiComplement4 officers 25 menArmament4 45 cm 17 7 in torpedo tubes 2 each bow and stern with 6 torpedoesService recordPart of II Flotilla 1 August 23 November 1914Commanders Kptlt Heinrich von Henning 1 1 August 23 November 1914Operations 3 patrolsVictories None Contents 1 Service history 2 References 2 1 Notes 2 2 Citations 2 3 Bibliography 3 External linksService history editBeginning in October 1914 she was commanded by Kaptlt von Hennig 2 On her third mission on 23 November U 18 penetrated the fleet anchorage of Scapa Flow via Hoxa Sound following a steamer through the boom and entering the anchorage with little difficulty However the fleet was absent being dispersed in anchorages on the west coast of Scotland and Ireland As U 18 was making her way back out through Hoxa Sound to the open sea her periscope was spotted by a guard boat The trawler Dorothy Gray altered course and rammed the periscope rendering it unserviceable U 18 then suffered a failure of her diving plane motor and the boat became unable to maintain her depth at one point even impacting the seabed She was rammed a second time by destroyer HMS Garry and eventually her captain was forced to surface and scuttle his command just outside the Hoxa Gate all crew members except one were picked up by British boats 3 4 One crew member perished while the remaining 22 were interned as prisoners of war 5 The wreck lies 75 m 246 ft below the surface just outside the Hoxa Gate at 58 41 N 02 55 W 58 683 N 2 917 W 58 683 2 917 6 References editNotes edit SM stands for Seiner Majestat English His Majesty s and combined with the U for Unterseeboot would be translated as His Majesty s Submarine Citations edit Helgason Gudmundur WWI U boat commanders Heinrich von Henning German and Austrian U boats of World War I Kaiserliche Marine Uboat net Retrieved 22 December 2014 Koerver Hans Joachim 2008 Room 40 German Naval Warfare 1914 1918 Messimer Dwight R 2002 Verschollen World War I U boat Losses Naval Institute Press pp 36 40 ISBN 9781557504753 Koerver Helgason Gudmundur WWI U boats U 18 German and Austrian U boats of World War I Kaiserliche Marine Uboat net Willmott H P 2009 The Last Century of Sea Power From Port Arthur to Chanak 1894 1922 Indiana University Press p 376 ISBN 9780253352149 Bibliography edit Groner Erich Jung Dieter Maass Martin 1991 U boats and Mine Warfare Vessels German Warships 1815 1945 Vol 2 Translated by Thomas Keith Magowan Rachel London Conway Maritime Press ISBN 0 85177 593 4 Spindler Arno 1966 1932 Der Handelskrieg mit U Booten 5 Vols Berlin Mittler amp Sohn Vols 4 5 dealing with 1917 18 are very hard to find Guildhall Library London has them all also Vol 1 3 in an English translation The submarine war against commerce Beesly Patrick 1982 Room 40 British Naval Intelligence 1914 1918 London H Hamilton ISBN 978 0241108642 Halpern Paul G 1918 A Naval History of World War I New York Routledge ISBN 978 1857284980 Roessler Eberhard 1997 Die Unterseeboote der Kaiserlichen Marine Bonn Bernard amp Graefe ISBN 978 3763759637 Schroeder Joachim 2002 Die U Boote des Kaisers Bonn Bernard amp Graefe ISBN 978 3763762354 Koerver Hans Joachim 2008 Room 40 German Naval Warfare 1914 1918 Vol I The Fleet in Action Steinbach LIS Reinisch ISBN 978 3 902433 76 3 Koerver Hans Joachim 2009 Room 40 German Naval Warfare 1914 1918 Vol II The Fleet in Being Steinbach LIS Reinisch ISBN 978 3 902433 77 0 Kemp Paul 1997 U boats destroyed German submarine losses in the World Wars London Arms amp Armour Press p 9 ISBN 1 85409 321 5 External links editHelgason Gudmundur WWI U boats U 18 German and Austrian U boats of World War I Kaiserliche Marine Uboat net Room 40 Archived 2018 10 15 at the Wayback Machine original documents photos and maps about World War I German submarine warfare and British Room 40 Intelligence from The National Archives Kew Richmond UK Retrieved from https en wikipedia org w index php title SM U 18 amp oldid 1172013639, wikipedia, wiki, book, books, library,
