SM UB-107

History
German Empire
Name	UB-107
Ordered	23 September 1916; 6 / 8 February 1917;
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	Type UB III submarine
Displacement	519 t (511 long tons) surfaced; 649 t (639 long tons) submerged;
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	2 × propeller shaft; 2 × MAN-Vulcan four-stroke 6-cylinder diesel engines, 1,085 bhp (809 kW); 2 × Siemens-Schuckert electric motors, 780 shp (580 kW);
Speed	13.3 knots (24.6 km/h; 15.3 mph) surfaced; 7.5 knots (13.9 km/h; 8.6 mph) submerged;
Range	7,420 nmi (13,740 km; 8,540 mi) at 6 knots (11 km/h; 6.9 mph) surfaced; 55 nmi (102 km; 63 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged;
Test depth	50 m (160 ft)
Complement	3 officers, 31 men
Armament	5 × 50 cm (19.7 in) torpedo tubes (4 bow, 1 stern); 10 torpedoes; 1 × 8.8 cm (3.46 in) deck gun;
Service record
Part of:	Flandern II Flotilla; 16 May – 4 August 1918;
Commanders:	Kptlt. Hans Howaldt; 16 February – 16 May 1918; Kptlt. Eberhard von Prittwitz und Gaffron; 17 May – 4 August 1918;
Operations:	4 patrols
Victories:	11 merchant ships sunk ; (26,147 GRT); 1 merchant ship damaged ; (1,685 GRT);

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.^{[Note 1]}

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 / 54.383; -0.400.^[3]

^ ^a ^b Helgason, Guðmundur. "WWI U-boats: UB 107". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 8 December 2014.
^ Rössler 1979, p. 66.
^ ^a ^b ^c ^d ^e ^f Gröner 1991, pp. 25–30.

Cite error: There are <ref group=Note> tags on this page, but the references will not show without a {{reflist|group=Note}} template (see the help page).

[UB107-1] Helgason, Guðmundur. "WWI U-boats: UB 107". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 8 December 2014.

[FOOTNOTERössler197966-2] Rössler 1979, p. 66.

[FOOTNOTEGröner199125–30-3] ^ ^a ^b ^c ^d ^e ^f Gröner 1991, pp. 25–30.

[1]

[2]

[3]

[Note 1]

History

German Empire
Name	UB-107
Ordered	23 September 1916^[1] 6 / 8 February 1917^[2]
Builder	Blohm & Voss, Hamburg
Cost	3,714,000 German Papiermark
Yard number	313
Launched	21 July 1917^[3]
Commissioned	16 February 1918^[3]
Fate	Sunk 27 July 1918 by British warships at 54°23′N 0°24′W / 54.383°N 0.400°W / 54.383; -0.400.^[3]
General characteristics ^[3]
Class and type	Type UB III submarine
Displacement	519 t (511 long tons) surfaced 649 t (639 long tons) submerged
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	2 × propeller shaft 2 × MAN-Vulcan four-stroke 6-cylinder diesel engines, 1,085 bhp (809 kW) 2 × Siemens-Schuckert electric motors, 780 shp (580 kW)
Speed	13.3 knots (24.6 km/h; 15.3 mph) surfaced 7.5 knots (13.9 km/h; 8.6 mph) submerged
Range	7,420 nmi (13,740 km; 8,540 mi) at 6 knots (11 km/h; 6.9 mph) surfaced 55 nmi (102 km; 63 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth	50 m (160 ft)
Complement	3 officers, 31 men^[3]
Armament	5 × 50 cm (19.7 in) torpedo tubes (4 bow, 1 stern) 10 torpedoes 1 × 8.8 cm (3.46 in) deck gun
Service record^[1]
Part of:	Flandern II Flotilla 16 May – 4 August 1918
Commanders:	Kptlt. Hans Howaldt 16 February – 16 May 1918 Kptlt. Eberhard von Prittwitz und Gaffron 17 May – 4 August 1918
Operations:	4 patrols
Victories:	11 merchant ships sunk (26,147 GRT) 1 merchant ship damaged (1,685 GRT)