German Type UE I submarines were preceded by the longer Type U 66 submarines. U-77 had a displacement of 755 tonnes (743 long tons) when at the surface and 832 tonnes (819 long tons) while submerged.[2] She had a total length of 56.80 m (186 ft 4 in), a pressure hull length of 46.66 m (153 ft 1 in), a beam of 5.90 m (19 ft 4 in), a height of 8.25 m (27 ft 1 in), and a draught of 4.86 m (15 ft 11 in). The submarine was powered by two 900 metric horsepower (660 kW; 890 shp) engines for use while surfaced, and two 900 metric horsepower (660 kW; 890 shp) engines for use while submerged. She had two propeller shafts. She was capable of operating at depths of up to 50 metres (160 ft).[2]
The submarine had a maximum surface speed of 9.9 knots (18.3 km/h; 11.4 mph) and a maximum submerged speed of 7.9 knots (14.6 km/h; 9.1 mph).[2] When submerged, she could operate for 83 nautical miles (154 km; 96 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 7,880 nautical miles (14,590 km; 9,070 mi) at 7 knots (13 km/h; 8.1 mph). U-77 was fitted with two 50 centimetres (20 in) torpedo tubes (one at the port bow and one starboard stern), four torpedoes, and one 8.8 centimetres (3.46 in) deck gun. She had a complement of thirty-two (twenty-eight crew members and four officers).[2]
Operations
U-77 was commanded by Kaptlt Erich Günzel, who was lost with her. She came off the stocks at Hamburg (Vulcan) in 1916; in May and June was at Kiel School, and first entered North Sea with U-76 on 29 June, to join the 1st Half Flotilla.[4]
^Helgason, Guðmundur. "WWI U-boat commanders: Erich Günzel". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 18 January 2015.
^HW 7/3, Room 40, History of German Naval Warfare 1914-1918. National Archives, Kew.
Bibliography
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.
January 02, 2023
other, ships, with, same, name, german, submarine, note, submarines, serving, imperial, german, navy, world, engaged, commerce, warfare, during, first, battle, atlantic, historygerman, empirenameu, 77ordered9, march, 1915builderag, vulkan, hamburgyard, number5. For other ships with the same name see German submarine U 77 SM U 77 Note 1 was one of 329 submarines serving in the Imperial German Navy in World War I engaged in commerce warfare during the First Battle of the Atlantic HistoryGerman EmpireNameU 77Ordered9 March 1915BuilderAG Vulkan HamburgYard number59Launched9 January 1916Commissioned10 March 1916FateMissing since 7 July 1916 during a minelaying mission off Kinnaird Head Scotland 33 dead all hands lost 1 General characteristics 2 Class and typeGerman Type UE I submarineDisplacement755 t 743 long tons surfaced 832 t 819 long tons submergedLength56 80 m 186 ft 4 in o a 46 66 m 153 ft 1 in pressure hull Beam5 90 m 19 ft 4 in o a 5 00 m 16 ft 5 in pressure hull Height8 25 m 27 ft 1 in Draught4 86 m 15 ft 11 in Installed power2 900 PS 662 kW 888 shp surfaced 2 800 PS 588 kW 789 shp submergedPropulsion2 shafts 2 1 41 m 4 ft 8 in propellersSpeed9 9 knots 18 3 km h 11 4 mph surfaced 7 9 knots 14 6 km h 9 1 mph submergedRange7 880 nmi 14 590 km 9 070 mi at 7 knots 13 km h 8 1 mph surfaced 83 nmi 154 km 96 mi at 4 knots 7 4 km h 4 6 mph submergedTest depth50 m 164 ft 1 in Complement4 officers 28 enlistedArmament2 50 cm 19 7 in torpedo tubes one port bow one starbord stern 4 torpedoes 1 8 8 cm 3 5 in SK L 30 deck gunService recordPart of I Flotilla 29 June 7 July 1916Commanders Kptlt Erich Gunzel 3 10 March 7 July 1916Operations 2 patrolsVictories No ships sunk or damaged 1 Contents 1 Design 2 Operations 3 Previously recorded fate 4 References 4 1 Notes 4 2 Citations 5 BibliographyDesign EditGerman Type UE I submarines were preceded by the longer Type U 66 submarines U 77 had a displacement of 755 tonnes 743 long tons when at the surface and 832 tonnes 819 long tons while submerged 2 She had a total length of 56 80 m 186 ft 4 in a pressure hull length of 46 66 m 153 ft 1 in a beam of 5 90 m 19 ft 4 in a height of 8 25 m 27 ft 1 in and a draught of 4 86 m 15 ft 11 in The submarine was powered by two 900 metric horsepower 660 kW 890 shp engines for use while surfaced and two 900 metric horsepower 660 kW 890 shp engines for use while submerged She had two propeller shafts She was capable of operating at depths of up to 50 metres 160 ft 2 The submarine had a maximum surface speed of 9 9 knots 18 3 km h 11 4 mph and a maximum submerged speed of 7 9 knots 14 6 km h 9 1 mph 2 When submerged she could operate for 83 nautical miles 154 km 96 mi at 4 knots 7 4 km h 4 6 mph when surfaced she could travel 7 880 nautical miles 14 590 km 9 070 mi at 7 knots 13 km h 8 1 mph U 77 was fitted with two 50 centimetres 20 in torpedo tubes one at the port bow and one starboard stern four torpedoes and one 8 8 centimetres 3 46 in deck gun She had a complement of thirty two twenty eight crew members and four officers 2 Operations EditU 77 was commanded by Kaptlt Erich Gunzel who was lost with her She came off the stocks at Hamburg Vulcan in 1916 in May and June was at Kiel School and first entered North Sea with U 76 on 29 June to join the 1st Half Flotilla 4 5 July 1916 Left for the north and laid mines between about 57 45 N 2 12 W 57 750 N 2 200 W 57 750 2 200 and 57 47 N 2 23 W 57 783 N 2 383 W 57 783 2 383 It seems possible she sank in 57 35 N 1 27 W 57 583 N 1 450 W 57 583 1 450 before midnight 7 July 1916 as a result of some accident Before this she had laid mines off Kinnaird Head Previously recorded fate EditU 77 was thought to have sunk off Dunbar Scotland in a minehandling accident The submarine involved was actually U 74 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 a b Helgason Gudmundur WWI U boats U 77 German and Austrian U boats of World War I Kaiserliche Marine Uboat net Retrieved 18 January 2015 a b c d e Groner 1991 pp 10 11 Helgason Gudmundur WWI U boat commanders Erich Gunzel German and Austrian U boats of World War I Kaiserliche Marine Uboat net Retrieved 18 January 2015 HW 7 3 Room 40 History of German Naval Warfare 1914 1918 National Archives Kew Bibliography EditGroner 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 Retrieved from https en wikipedia org w index php title SM U 77 amp oldid 1086212106, wikipedia, wiki, book, books, library,
