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Sm Ub-30

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Sm Ub-30

For other ships of the same name, see German submarine U-30.

SM UB-45 a u-boat similar to UB-30
Career (German Empire)
Name: UB-30
Ordered: 22 July 1915[1]
Builder: Blohm & Voss, Hamburg[1]
Cost: 1,152,000 German Papiermark[2]
Yard number: 254[1]
Launched: 16 November 1915[1]
Completed: 16 March 1916[1]
Commissioned: 18 March 1916[3]
Fate: sunk 13 August 1918 by British warships[3]
General characteristics
Class & type: German Type UB II submarine
Displacement: 274 t (270 long tons) ↑[2]
303 t (298 long tons) ↓[2]
Length: 36.9 m (121 ft 1 in)[2]
Beam: 437 m (1,433 ft 9 in)[2]
Draft: 3.69 m (12 ft 1 in)[2]
Propulsion: 2 × propeller shafts
2 × Benz diesel engines, 270 shp (200 kW)[2]
2 × Siemens-Schuckert electric motor, 280 shp (210 kW)[2]
Speed: 9.06 knots (16.78 km/h) ↑[2]
5.71 knots (10.57 km/h) ↓[2]
Range: 7,030 nautical miles (13,020 km; 8,090 mi) @ 5 knots (9.3 km/h; 5.8 mph) ↑[2]
45 nmi (83 km; 52 mi) @ 4 knots ↓[2]
Test depth: 50 m (160 ft)[2]
Complement: 2 officers, 21 men[2]
Armament: 2 × 50 cm (19.7 in) torpedo tubes[2]
4 × torpedoes (later 6)
1 × 5 cm SK L/40 gun[2]
Notes: 42-second diving time[2]

SM UB-30 was a German Type UB II submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. The U-boat was ordered on 22 July 1915 and launched on 16 November 1915. She was commissioned into the German Imperial Navy on 18 March 1916 as SM UB-30.[Note 1]

The submarine sank 18 ships in 19 patrols. They included the William Cory & Son collier SS Vernon in the North Sea off Spurn in 31 August 1917[4] and the Witherington and Everett Steam Ship Company collier SS Lightfoot in the English Channel off Selsey Bill on 16 March 1918.[5]

UB-30 was sunk by two depth charges from HMS Landrail south of Goodwin Sands at 51°9′N 1°46′E / 51.150°N 1.767°E / 51.150; 1.767Coordinates: 51°9′N 1°46′E / 51.150°N 1.767°E / 51.150; 1.767 on 13 December 1916.[3]

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