SM UB-33

	SM UB-45, a U-boat similar to UB-33
History
German Empire
Name	UB-33
Ordered	22 July 1915
Builder	Blohm & Voss, Hamburg
Cost	1,152,000 German Papiermark
Yard number	257
Launched	5 December 1915
Completed	20 April 1916
Commissioned	22 April 1916
Fate	Sunk 11 April 1918
General characteristics
Class & type	Type UB II submarine
Displacement	274 t (270 long tons) surfaced; 303 t (298 long tons) submerged;
Length	36.90 m (121 ft 1 in) o/a; 27.90 m (91 ft 6 in) pressure hull;
Beam	4.37 m (14 ft 4 in) o/a; 3.85 m (12 ft 8 in) pressure hull;
Draught	3.69 m (12 ft 1 in)
Propulsion	1 × propeller shaft; 2 × 6-cylinder diesel engine, 270 PS (200 kW; 270 bhp); 2 × electric motor, 280 PS (210 kW; 280 shp);
Speed	9.06 knots (16.78 km/h; 10.43 mph) surfaced; 5.71 knots (10.57 km/h; 6.57 mph) submerged;
Range	7,030 nmi (13,020 km; 8,090 mi) at 5 knots (9.3 km/h; 5.8 mph) surfaced; 45 nmi (83 km; 52 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged;
Test depth	50 m (160 ft)
Complement	2 officers, 21 men
Armament	2 × 50 cm (19.7 in) torpedo tubes; 4 × torpedoes (later 6); 1 × 8.8 cm (3.5 in) Uk L/30 deck gun;
Notes	42-second diving time
Service record
Part of:	Baltic Flotilla; 22 June 1916 - 24 October 1917; Flandern Flotilla; 24 October 1917 - 11 April 1918;
Commanders:	Oblt. Herbert Lefholz ; 22 April 1916 – 30 January 1917; Oblt. Waldemar von Fischer; 1 February – 21 March 1917; Oblt. Karl Ruprecht; 22 March – 16 September 1917; Oblt. Fritz Gregor ; 17 September 1917 – 11 April 1918;
Operations:	17 patrols
Victories:	13 merchant ships sunk ; (5,390 GRT); 2 merchant ships damaged ; (6,575 GRT); 3 merchant ships taken as prize ; (1,527 GRT);

SM UB-33 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 5 December 1915. She was commissioned into the German Imperial Navy on 22 April 1916 as SM UB-33.

The submarine sank thirteen ships, damaged two others, and took a further three as prizes in seventeen patrols.

History
SM UB-45, a U-boat similar to UB-33
German Empire
Name	UB-33
Ordered	22 July 1915
Builder	Blohm & Voss, Hamburg
Cost	1,152,000 German Papiermark
Yard number	257
Launched	5 December 1915
Completed	20 April 1916
Commissioned	22 April 1916
Fate	Sunk 11 April 1918
General characteristics
Class & type	Type UB II submarine
Displacement	274 t (270 long tons) surfaced 303 t (298 long tons) submerged
Length	36.90 m (121 ft 1 in) o/a 27.90 m (91 ft 6 in) pressure hull
Beam	4.37 m (14 ft 4 in) o/a 3.85 m (12 ft 8 in) pressure hull
Draught	3.69 m (12 ft 1 in)
Propulsion	1 × propeller shaft 2 × 6-cylinder diesel engine, 270 PS (200 kW; 270 bhp) 2 × electric motor, 280 PS (210 kW; 280 shp)
Speed	9.06 knots (16.78 km/h; 10.43 mph) surfaced 5.71 knots (10.57 km/h; 6.57 mph) submerged
Range	7,030 nmi (13,020 km; 8,090 mi) at 5 knots (9.3 km/h; 5.8 mph) surfaced 45 nmi (83 km; 52 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth	50 m (160 ft)
Complement	2 officers, 21 men
Armament	2 × 50 cm (19.7 in) torpedo tubes 4 × torpedoes (later 6) 1 × 8.8 cm (3.5 in) Uk L/30 deck gun
Notes	42-second diving time
Service record
Part of:	Baltic Flotilla 22 June 1916 - 24 October 1917 Flandern Flotilla 24 October 1917 - 11 April 1918
Commanders:	Oblt. Herbert Lefholz 22 April 1916 – 30 January 1917 Oblt. Waldemar von Fischer 1 February – 21 March 1917 Oblt. Karl Ruprecht 22 March – 16 September 1917 Oblt. Fritz Gregor 17 September 1917 – 11 April 1918
Operations:	17 patrols
Victories:	13 merchant ships sunk (5,390 GRT) 2 merchant ships damaged (6,575 GRT) 3 merchant ships taken as prize (1,527 GRT)