SM UB-32

For other ships with the same name, see German submarine U-32.

UB-32 redirects here. For the Soviet rocket launcher, see S-5 rocket

History
SM UB-45 a u-boat similar to UB-32
German Empire
Name:	UB-32
Ordered:	22 July 1915^[1]
Builder:	Blohm & Voss, Hamburg^[1]
Cost:	1,152,000 German Papiermark^[2]
Yard number:	256^[1]
Launched:	4 December 1915^[1]
Completed:	10 April 1916^[1]
Commissioned:	11 April 1916^[2]
Fate:	Lost after 17 September 1917; Possibly sunk on 22 September 1917^[2]
General characteristics ^[2]
Class and type:	German 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) deck gun
Notes:	42-second diving time
Service record
Part of:	Imperial German Navy: Baltic Flotilla 25 May 1916 – 24 February 1917 Flandern Flotilla 24 February – 22 September 1917
Commanders:	Kptlt. Ludwig Karl Sahl^[3] 11 April – 4 December 1916 Oblt.z.S. Karl Ruprecht^[4] 5 December 1916 – 24 February 1917 Kptlt. Max Viebeg^[5] 25 February – 5 August 1917 Oblt.z.S. Benno von Ditfurth^[6] 6 August – 22 September 1917
Operations:	16 patrols
Victories:	22 merchant ships sunk (42,893 GRT) 4 merchant ships damaged (19,933 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.^{[Note 1]}

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.^[2]

Design

A German Type UB II submarine, UB-32 had a displacement of 274 tonnes (270 long tons) when at the surface and 303 tonnes (298 long tons) while submerged. She had a total length of 36.90 m (121 ft 1 in), a beam of 4.37 m (14 ft 4 in), and a draught of 3.69 m (12 ft 1 in). The submarine was powered by two Benz six-cylinder diesel engines producing a total 270 metric horsepower (270 shp; 200 kW), two Siemens-Schuckert electric motors producing 280 metric horsepower (210 kW; 280 shp), and one propeller shaft. She was capable of operating at depths of up to 50 metres (160 ft).^[2]

The submarine had a maximum surface speed of 9.06 knots (16.78 km/h; 10.43 mph) and a maximum submerged speed of 5.71 knots (10.57 km/h; 6.57 mph). When submerged, she could operate for 45 nautical miles (83 km; 52 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 7,030 nautical miles (13,020 km; 8,090 mi) at 5 knots (9.3 km/h; 5.8 mph). UB-32 was fitted with two 50 centimetres (20 in) torpedo tubes, four torpedoes, and one 8.8 cm (3.5 in) Uk L/30 deck gun. She had a complement of twenty-one crew members and two officers and a 42-second dive time.^[2]

Summary of raiding history

Date	Name	Nationality	Tonnage^{[Note 2]}	Fate^[7]
13 March 1917	Comrades	United Kingdom	58	Sunk
13 March 1917	De Tien Kinders	Belgium	44	Sunk
13 March 1917	Gold Seeker	United Kingdom	62	Sunk
30 March 1917	HMS Penshurst	Royal Navy	1,191	Damaged
31 March 1917	Boaz	United Kingdom	111	Sunk
31 March 1917	Gippeswic	United Kingdom	116	Sunk
31 March 1917	HMHS Gloucester Castle	Royal Navy	7,999	Damaged
31 March 1917	Queen Louise	United Kingdom	4,879	Damaged
1 April 1917	Endymion	United Kingdom	73	Sunk
4 April 1917	Parana	Brazil	4,461	Sunk
5 April 1917	Ernest Legouve	France	2,246	Sunk
24 April 1917	Marie Blanche	France	359	Sunk
25 April 1917	Ballarat	United Kingdom	11,120	Sunk
27 April 1917	Alfalfa	United Kingdom	2,993	Sunk
27 April 1917	Beemah	United Kingdom	4,750	Sunk
28 April 1917	Pursue	United Kingdom	37	Sunk
29 April 1917	Ellen Harrison	United Kingdom	103	Sunk
29 April 1917	Mermaid	United Kingdom	76	Sunk
30 April 1917	Portbail	France	378	Sunk
8 June 1917	Vinaes	Norway	1,107	Sunk
11 June 1917	Mar Cor	Kingdom of Italy	3,257	Sunk
12 June 1917	South Point	United Kingdom	4,258	Sunk
14 June 1917	Vigoureuse	France	152	Sunk
5 July 1917	Havbris	Norway	677	Sunk
6 July 1917	Wabasha	United Kingdom	5,864	Damaged
26 August 1917	Feltre	Kingdom of Italy	6,455	Sunk

Notes

↑ "SM" stands for "Seiner Majestät" (English: His Majesty's) and combined with the U for Unterseeboot would be translated as His Majesty's Submarine.
↑ Merchant ship tonnages are in gross register tons. Military vessels are listed by tons displacement.

References

1 2 3 4 5 Rössler 1979, p. 64.
1 2 3 4 5 6 7 Gröner 1991, pp. 23-25.
↑ Helgason, Guðmundur. "WWI U-boat commanders: Ludwig Karl Sahl". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 1 February 2015.
↑ Helgason, Guðmundur. "WWI U-boat commanders: Karl Ruprecht". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 1 February 2015.
↑ Helgason, Guðmundur. "WWI U-boat commanders: Max Viebeg (Pour le Mérite)". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 1 February 2015.
↑ Helgason, Guðmundur. "WWI U-boat commanders: Benno von Ditfurth". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 1 February 2015.
↑ Helgason, Guðmundur. "Ships hit by UB 32". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 1 February 2015.

Bibliography

Bendert, Harald (2000). Die UB-Boote der Kaiserlichen Marine, 1914-1918. Einsätze, Erfolge, Schicksal (in German). Hamburg: Verlag E.S. Mittler & Sohn GmbH. ISBN 3-8132-0713-7.
Gröner, Erich; Jung, Dieter; Maass, Martin (1991). U-boats and Mine Warfare Vessels. German Warships 1815–1945. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4.
Rössler, Eberhard (1979). U-Bootbau bis Ende des 1. Weltkrieges, Konstruktionen für das Ausland und die Jahre 1935 – 1945. Die deutschen U-Boote und ihre Werften (in German). I. Munich: Bernard & Graefe. ISBN 3-7637-5213-7.

Coordinates: 51°45′N 2°5′E / 51.750°N 2.083°E / 51.750; 2.083

German Type UB II submarines

UB-18 UB-19 UB-20 UB-21 UB-22 UB-23 UB-24 UB-25 UB-26 UB-27 UB-28 UB-29 UB-30 UB-31 UB-32 UB-33 UB-34 UB-35 UB-36 UB-37 UB-38 UB-39 UB-40 UB-41 UB-42 UB-43 UB-44 UB-45 UB-46 UB-47

Preceded by: Type UB I Followed by: Type UB III List of U-boats of Germany

Shipwrecks and maritime incidents in September 1917

Shipwrecks	1 Sep: Akaroa 2 Sep: SM U-28 3 Sep: Dundee 5 Sep: SM U-88 6 Sep: Alesia 7 Sep: Minnehaha 10 Sep: SM UC-42 11 Sep: SM U-49 12 Sep: SM U-45 14 Sep: USS D-2 16 Sep: HMS G9 17 Sep: SM UC-45 18 Sep: Port Kembla 21 Sep: Radaas 23 Sep: Rosehill 26 Sep: SM UC-33 27 Sep: SM UC-6 29 Sep: SM UC-55 Unknown date: SM U-66, SM UB-32, SM UC-21

Other incidents	2 Sep: Dundee 5 Sep: Alesia 16 Sep: HMS Pasley

1916 1917 1918 August 1917 October 1917

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