SM UB-32

	SM UB-45, a U-boat similar to UB-32
History
German Empire
Name	UB-32
Ordered	22 July 1915
Builder	Blohm & Voss, Hamburg
Cost	1,152,000 German Papiermark
Yard number	256
Launched	4 December 1915
Completed	10 April 1916
Commissioned	11 April 1916
Fate	Lost after 17 September 1917;; Possibly sunk on 22 September 1917;
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; 25 May 1916 – 24 February 1917; Flandern Flotilla; 24 February – 22 September 1917;
Commanders:	Kptlt. Ludwig Karl Sahl; 11 April – 4 December 1916; Oblt.z.S. Karl Ruprecht; 5 December 1916 – 24 February 1917; Kptlt. Max Viebeg; 25 February – 5 August 1917; Oblt.z.S. Benno von Ditfurth; 6 August – 22 September 1917;
Operations:	16 patrols
Victories:	22 merchant ships sunk ; (42,893 GRT); 2 merchant ships damaged ; (10,743 GRT); 2 auxiliary warships damaged ; (9,190 GRT);

SM UB-32 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 4 December 1915. She was commissioned into the German Imperial Navy on 11 April 1916 as SM UB-32.

The submarine sank 22 ships in 16 patrols. She was last heard from on 17 September 1917 and may have been bombed and sunk by Royal Naval Air Service aircraft in the English Channel on 22 September 1917. The wreck was found in the 1980s but only identified as UB-32 in 2021.

History
SM UB-45, a U-boat similar to UB-32
German Empire
Name	UB-32
Ordered	22 July 1915
Builder	Blohm & Voss, Hamburg
Cost	1,152,000 German Papiermark
Yard number	256
Launched	4 December 1915
Completed	10 April 1916
Commissioned	11 April 1916
Fate	Lost after 17 September 1917; Possibly sunk on 22 September 1917
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 25 May 1916 – 24 February 1917 Flandern Flotilla 24 February – 22 September 1917
Commanders:	Kptlt. Ludwig Karl Sahl 11 April – 4 December 1916 Oblt.z.S. Karl Ruprecht 5 December 1916 – 24 February 1917 Kptlt. Max Viebeg 25 February – 5 August 1917 Oblt.z.S. Benno von Ditfurth 6 August – 22 September 1917
Operations:	16 patrols
Victories:	22 merchant ships sunk (42,893 GRT) 2 merchant ships damaged (10,743 GRT) 2 auxiliary warships damaged (9,190 GRT)