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SM UB-2
SM UB-2 was a German Type UB I submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. She sank eleven ships during her career and was broken up in Germany in 1920.
UB-2 was ordered in October 1914 and was laid down at the Germaniawerft shipyard in Kiel in November. UB-2 was a little more than 28 metres (92 ft) in length and displaced between 127 and 142 tonnes (125 and 140 long tons), depending on whether surfaced or submerged. She carried two torpedoes for her two bow torpedo tubes and was also armed with a deck-mounted machine gun. She was launched and commissioned as SM UB-2 in February 1915.
When UB-2 sailed to join the Flanders Flotilla in May 1915, she became the only member of her class to not be shipped by rail to Antwerp to join the unit. While in the flotilla, UB-2 sank eleven British ships of 1,374 gross register tons (GRT) under the command of Kptlt. Werner Fürbringer. The U-boat was assigned to the Baltic Flotilla in March 1916 relegated to a training role from December that same year. At the end of the war, UB-2 was deemed unseaworthy and unable to surrender at Harwich with the rest of Germany's U-boat fleet. She remained in Germany where she was broken up by Stinnes in February 1920.
After the German Army's rapid advance along the North Sea coast in the earliest stages of World War I, the German Imperial Navy found itself without suitable submarines that could be operated in the narrow and shallow environment off Flanders. Project 34, a design effort begun in mid-August 1914, produced the Type UB I design: a small submarine that could be shipped by rail to a port of operations and quickly assembled. Constrained by railroad size limitations, the UB I design called for a boat about 28 metres (92 ft) long and displacing about 125 tonnes (123 long tons) with two torpedo tubes. UB-2 was part of the initial allotment of eight submarines—numbered UB-1 to UB-8—ordered on 15 October from Germaniawerft of Kiel, just shy of two months after planning for the class began.
UB-2 was laid down by Germaniawerft on 1 November, one of the first two boats of the class started. She was launched at Kiel on 13 February 1915. As built, UB-2 was 28.10 metres (92 ft 2 in) long, 3.15 metres (10 ft 4 in) abeam, and had a draft of 3.03 metres (9 ft 11 in). She had a single 59-brake-horsepower (44 kW) Daimler 4-cylinder diesel engine for surface travel, and a single 119-shaft-horsepower (89 kW) Siemens-Schuckert electric motor for underwater travel, both attached to a single propeller shaft. Her top speeds were 6.47 knots (11.98 km/h; 7.45 mph), surfaced, and 5.51 knots (10.20 km/h; 6.34 mph), submerged. At more moderate speeds, she could sail up to 1,650 nautical miles (3,060 km; 1,900 mi) on the surface before refueling, and up to 45 nautical miles (83 km; 52 mi) submerged before recharging her batteries. Like all boats of the class, UB-2 was rated to a diving depth of 50 metres (160 ft), and could completely submerge in 33 seconds.
UB-2 was armed with two 45-centimeter (17.7 in) torpedoes in two bow torpedo tubes. She was also outfitted for a single 8-millimeter (0.31 in) machine gun on deck. UB-2's standard complement consisted of one officer and thirteen enlisted men.
The submarine was commissioned into the German Imperial Navy as SM UB-2 on 20 February under the command of Kapitänleutnant Werner Fürbringer, a 26-year-old native of Braunschweig, and underwent trials in German home waters.
UB-2 sailed from Germany to Flanders to join the Flanders Flotilla (German: U-boote des Marinekorps U-Flotille Flandern) on 10 May 1915, and was the only UB I or UC I boat in the flotilla to not be shipped to Antwerp by rail. When UB-2 joined the flotilla, Germany was in the midst of its first submarine offensive, begun in February. During this campaign, enemy vessels in the German-defined war zone (German: Kriegsgebiet), which encompassed all waters around the United Kingdom (including the English Channel), were to be sunk. Vessels of neutral countries were not to be attacked unless they definitively could be identified as enemy vessels operating under a false flag.
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SM UB-2
SM UB-2 was a German Type UB I submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. She sank eleven ships during her career and was broken up in Germany in 1920.
UB-2 was ordered in October 1914 and was laid down at the Germaniawerft shipyard in Kiel in November. UB-2 was a little more than 28 metres (92 ft) in length and displaced between 127 and 142 tonnes (125 and 140 long tons), depending on whether surfaced or submerged. She carried two torpedoes for her two bow torpedo tubes and was also armed with a deck-mounted machine gun. She was launched and commissioned as SM UB-2 in February 1915.
When UB-2 sailed to join the Flanders Flotilla in May 1915, she became the only member of her class to not be shipped by rail to Antwerp to join the unit. While in the flotilla, UB-2 sank eleven British ships of 1,374 gross register tons (GRT) under the command of Kptlt. Werner Fürbringer. The U-boat was assigned to the Baltic Flotilla in March 1916 relegated to a training role from December that same year. At the end of the war, UB-2 was deemed unseaworthy and unable to surrender at Harwich with the rest of Germany's U-boat fleet. She remained in Germany where she was broken up by Stinnes in February 1920.
After the German Army's rapid advance along the North Sea coast in the earliest stages of World War I, the German Imperial Navy found itself without suitable submarines that could be operated in the narrow and shallow environment off Flanders. Project 34, a design effort begun in mid-August 1914, produced the Type UB I design: a small submarine that could be shipped by rail to a port of operations and quickly assembled. Constrained by railroad size limitations, the UB I design called for a boat about 28 metres (92 ft) long and displacing about 125 tonnes (123 long tons) with two torpedo tubes. UB-2 was part of the initial allotment of eight submarines—numbered UB-1 to UB-8—ordered on 15 October from Germaniawerft of Kiel, just shy of two months after planning for the class began.
UB-2 was laid down by Germaniawerft on 1 November, one of the first two boats of the class started. She was launched at Kiel on 13 February 1915. As built, UB-2 was 28.10 metres (92 ft 2 in) long, 3.15 metres (10 ft 4 in) abeam, and had a draft of 3.03 metres (9 ft 11 in). She had a single 59-brake-horsepower (44 kW) Daimler 4-cylinder diesel engine for surface travel, and a single 119-shaft-horsepower (89 kW) Siemens-Schuckert electric motor for underwater travel, both attached to a single propeller shaft. Her top speeds were 6.47 knots (11.98 km/h; 7.45 mph), surfaced, and 5.51 knots (10.20 km/h; 6.34 mph), submerged. At more moderate speeds, she could sail up to 1,650 nautical miles (3,060 km; 1,900 mi) on the surface before refueling, and up to 45 nautical miles (83 km; 52 mi) submerged before recharging her batteries. Like all boats of the class, UB-2 was rated to a diving depth of 50 metres (160 ft), and could completely submerge in 33 seconds.
UB-2 was armed with two 45-centimeter (17.7 in) torpedoes in two bow torpedo tubes. She was also outfitted for a single 8-millimeter (0.31 in) machine gun on deck. UB-2's standard complement consisted of one officer and thirteen enlisted men.
The submarine was commissioned into the German Imperial Navy as SM UB-2 on 20 February under the command of Kapitänleutnant Werner Fürbringer, a 26-year-old native of Braunschweig, and underwent trials in German home waters.
UB-2 sailed from Germany to Flanders to join the Flanders Flotilla (German: U-boote des Marinekorps U-Flotille Flandern) on 10 May 1915, and was the only UB I or UC I boat in the flotilla to not be shipped to Antwerp by rail. When UB-2 joined the flotilla, Germany was in the midst of its first submarine offensive, begun in February. During this campaign, enemy vessels in the German-defined war zone (German: Kriegsgebiet), which encompassed all waters around the United Kingdom (including the English Channel), were to be sunk. Vessels of neutral countries were not to be attacked unless they definitively could be identified as enemy vessels operating under a false flag.