SM UB-107 facts for kids
Quick facts for kids History |
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 German Empire |
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| Name | UB-107 |
| Ordered | 6/8 February 191723 September 1913 |
| Builder | Blohm & Voss, Hamburg |
| Cost | 3,714,000 German Papiermark |
| Yard number | 313 |
| Launched | 21 July 1917 |
| Commissioned | 16 February 1918 |
| Fate | sunk 27 July 1918 by British warships at 54°23′N 0°24′W / 54.383°N 0.400°W. |
| General characteristics | |
| Class and type | German Type UB III submarine |
| Displacement |
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| Length | 55.30 m (181 ft 5 in) (o/a) |
| Beam | 5.80 m (19 ft) |
| Draught | 3.70 m (12 ft 2 in) |
| Propulsion |
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| Speed |
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| Range |
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| Test depth | 50 m (160 ft) |
| Complement | 3 officers, 31 men |
| Armament |
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| Service record | |
| Part of: |
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| Commanders: |
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| Operations: | 4 patrols |
| Victories: |
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SM UB-107 was a German Type UB III submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. She was commissioned into the German Imperial Navy on 16 February 1918 as SM UB-107.
The submarine conducted 4 patrols and sank 11 ships during the war for a total loss of 26,147 GRT. UB-107 was sunk on 27 July 1918 by HMS Vanessa (D29) and HMT Calvis at 54°23′N 0°24′W / 54.383°N 0.400°W.
Construction
UB-107 was ordered by the GIN on 23 September 1916. She was built by Blohm & Voss of Hamburg and following just under a year of construction, launched at Hamburg on 21 July 1917. UB-107 was commissioned early the next year . Like all Type UB III submarines, UB-107 carried 10 torpedoes and was armed with a 8.8 cm (3.46 in) deck gun. UB-107 would carry a crew of up to 3 officer and 31 men and had a cruising range of 7,420 nautical miles (13,740 km; 8,540 mi). UB-107 had a displacement of 519 t (511 long tons) while surfaced and 649 t (639 long tons) when submerged. Her engines enabled her to travel at 13.3 knots (24.6 km/h; 15.3 mph) when surfaced and 7.4 knots (13.7 km/h; 8.5 mph) when submerged.
Fate
The first recorded fate of UB-107 was noted as sunk by depth charge on July 27, 1918 by the Royal Navy trawler Calvis and HMY Vanessa II at position 57°23′N 00°24′W / 57.383°N 0.400°W. It has since been argued that the UB-107 was probably not present for the attack by Calvis and Vanessa II as it was the only U-boat that could have been responsible for the sinking of steamers Chloris and John Rettig two and a half hours later at position 53°52′N 00°10′E / 53.867°N 0.167°E.
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In 1985 divers discovered the wreck of UB-107 one mile north of Flamborough Head at position 54°08′N 00°00′W / 54.133°N -0.000°E entangled with another wreck, the SS Malvina, a British steamer torpedoed and sunk on 3 August 1918 reported as being by UB-104, though UB-104's record says it was not in the area nor that it attacked a ship on that day. UB-107 was identified by the markings on her propellers. It is suggested that either UB-107 suffered an accident of some sort or was lost on a British mine between July 28 and August 3, 1918 leaving all hands lost (38 dead).
Summary of raiding history
| Date | Name | Nationality | Tonnage | Fate |
|---|---|---|---|---|
| 10 May 1918 | Erich Lea |  Norway |
1,630 | Sunk |
| 10 May 1918 | Naparima |  Sweden |
1,685 | Damaged |
| 6 June 1918 | Koningin Regentes |  Netherlands |
1,970 | Sunk |
| 8 June 1918 | Hogarth |  United Kingdom |
1,231 | Sunk |
| 13 June 1918 | Agnes | Sweden |
1,334 | Sunk |
| 13 June 1918 | Kalo | United Kingdom |
1,957 | Sunk |
| 15 June 1918 | Kieldrecht | United Kingdom |
1,284 | Sunk |
| 8 July 1918 | Chicago | United Kingdom |
7,709 | Sunk |
| 8 July 1918 | War Crocus | United Kingdom |
5,296 | Sunk |
| 9 July 1918 | Fryken | Sweden |
943 | Sunk |
| 27 July 1918 | Chloris | United Kingdom |
984 | Sunk |
| 27 July 1918 | John Rettig | Sweden |
1,809 | Sunk |
Television Documentary
The fate of UB-107 was the subject of an episode of the documentary television series Deep Sea Detectives: "Mystery U-Boat of WWI". The documentary offered various scenarios for the sinking based on historical evidence and exploratory diving at the wreck site.
