SM UB-87

For other ships with the same name, see German submarine U-87.

SM UB-87 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 27 December 1917 as SM UB-87.^{[Note 1]}

UB-148 at sea, a U-boat similar to UB-87.
History
German Empire
Name	UB-87
Ordered	23 September 1916[1]
Builder	AG Weser, Bremen
Cost	3,341,000 German Papiermark
Yard number	287
Laid down	23 February 1917[2]
Launched	10 November 1917[3]
Commissioned	27 December 1917[3]
Fate	Surrendered 20 November 1918, broken up at Brest[3]
General characteristics [3]
Class & type	Type UB III submarine
Displacement	516 t (508 long tons) surfaced 647 t (637 long tons) submerged
Length	55.85 m (183 ft 3 in) (o/a)
Beam	5.80 m (19 ft)
Draught	3.72 m (12 ft 2 in)
Propulsion	2 × propeller shaft 2 × Benz four-stroke 6-cylinder diesel engines, 1,050 bhp (780 kW) 2 × BBC electric motors, 780 shp (580 kW)
Speed	13.4 knots (24.8 km/h; 15.4 mph) surfaced 7.5 knots (13.9 km/h; 8.6 mph) submerged
Range	8,180 nmi (15,150 km; 9,410 mi) at 6 knots (11 km/h; 6.9 mph) surfaced 50 nmi (93 km; 58 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
Part of:	V Flotilla 14 March – 29 April 1918 III Flotilla 29 April – 11 November 1918
Commanders:	Kptlt. Karl Petri[4] 27 December 1917 – 30 September 1918 Oblt.z.S. Bernhard Hibsch[5] 1 October – 11 November 1918
Operations:	5 patrols
Victories:	3 merchant ships sunk (18,671 GRT) 1 merchant ship damaged (12,045 GRT)

UB-87 was surrendered to France on 20 November 1918 in accordance with the requirements of the Armistice with Germany. She was broken up in Brest in 1921.^[3]

Construction

Main article: Type UB III submarine

She was built by AG Weser of Bremen and following just under a year of construction, launched at Bremen on 10 November 1917. UB-87 was commissioned later that same year . Like all Type UB III submarines, UB-87 carried 10 torpedoes and was armed with a 8.8 cm (3.46 in) deck gun. UB-87 would carry a crew of up to 3 officer and 31 men and had a cruising range of 8,180 nautical miles (15,150 km; 9,410 mi). UB-87 had a displacement of 516 t (508 long tons) while surfaced and 647 t (637 long tons) when submerged. Her engines enabled her to travel at 13.4 knots (24.8 km/h; 15.4 mph) when surfaced and 7.5 knots (13.9 km/h; 8.6 mph) when submerged.

Summary of raiding history

Date	Name	Nationality	Tonnage[Note 2]	Fate[6]
3 September 1918	Highcliffe	United Kingdom	3,238	Sunk
6 September 1918	Milly	United Kingdom	2,964	Sunk
7 September 1918	Persic	United Kingdom	12,045	Damaged
9 September 1918	Missanabie	United Kingdom	12,469	Sunk