SM UC-47

History
German Empire
Name	UC-47
Ordered	20 November 1915
Builder	AG Weser, Bremen
Yard number	257
Laid down	1 February 1916
Launched	30 August 1916
Commissioned	13 October 1916
Fate	Sunk, 18 November 1917
General characteristics
Class & type	Type UC II submarine
Displacement	420 t (410 long tons), surfaced; 502 t (494 long tons), submerged;
Length	51.85 m (170 ft 1 in) o/a; 39.70 m (130 ft 3 in) pressure hull;
Beam	5.22 m (17 ft 2 in) o/a; 3.65 m (12 ft) pressure hull;
Draught	3.67 m (12 ft 0 in)
Propulsion	2 × propeller shafts; 2 × 6-cylinder, 4-stroke diesel engines, 600 PS (440 kW; 590 shp); 2 × electric motors, 460 PS (340 kW; 450 shp);
Speed	11.7 knots (21.7 km/h; 13.5 mph), surfaced; 6.7 knots (12.4 km/h; 7.7 mph), submerged;
Range	7,280 nmi (13,480 km; 8,380 mi) at 7 knots (13 km/h; 8.1 mph) surfaced; 54 nmi (100 km; 62 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged;
Test depth	50 m (160 ft)
Complement	26
Armament	6 × 100 cm (39.4 in) mine tubes; 18 × UC 200 mines; 3 × 50 cm (19.7 in) torpedo tubes (2 bow/external; one stern); 7 × torpedoes; 1 × 8.8 cm (3.5 in) Uk L/30 deck gun;
Notes	30-second diving time
Service record
Part of	Flandern / Flandern II Flotilla; 23 January – 18 November 1917;
Commanders	Oblt.z.S. / Kptlt. Paul Hundius; 13 October 1916 – 8 October 1917; Oblt.z.S. Günther Wigankow; 9 October – 18 November 1917;
Operations	13 patrols
Victories	55 merchant ships sunk ; (73,100 GRT); 1 warship sunk ; (880 tons); 2 auxiliary warships sunk ; (514 GRT); 7 merchant ships damaged ; (14,218 GRT); 1 auxiliary warship damaged ; (224 GRT);

SM UC-47 was a German Type UC II minelaying submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. The U-boat was ordered on 20 November 1915, laid down on 1 February 1916, and was launched on 30 August 1916. She was commissioned into the German Imperial Navy on 13 October 1916 as SM UC-47. In 13 patrols UC-47 was credited with sinking 58 ships, either by torpedo or by mines laid. UC-47 was rammed and depth charged by British patrol boat P-57, under the command of H.C. Birnie, off Flamborough Head on 18 November 1917. UC-47 went down with all hands.