SM UC-46

History
German Empire
Name	UC-46
Ordered	20 November 1915
Builder	AG Weser, Bremen
Yard number	256
Laid down	1 February 1916
Launched	8 August 1916
Commissioned	15 September 1916
Fate	Rammed by HMS Liberty southeast of Goodwin Sands, 8 February 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; 6.74 knots (12.48 km/h; 7.76 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 Flotilla; 29 November 1916 – 8 February 1917;
Commanders:	Oblt.z.S. Friedrich Moecke; 15 September 1916 – 8 February 1917;
Operations:	4 patrols
Victories:	9 merchant ships sunk ; (10,346 GRT); 1 auxiliary warship sunk ; (275 GRT); 3 merchant ships damaged ; (18,836 GRT);

SM UC-46 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 8 August 1916. She was commissioned into the German Imperial Navy on 15 September 1916 as SM UC-46. In four patrols UC-46 was credited with sinking 10 ships, either by torpedo or by mines laid. UC-46 was rammed and sunk southeast of Goodwin Sands by the British destroyer HMS Liberty on 8 February 1917.

History

German Empire
Name	UC-46
Ordered	20 November 1915
Builder	AG Weser, Bremen
Yard number	256
Laid down	1 February 1916
Launched	8 August 1916
Commissioned	15 September 1916
Fate	Rammed by HMS Liberty southeast of Goodwin Sands, 8 February 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 6.74 knots (12.48 km/h; 7.76 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 Flotilla 29 November 1916 – 8 February 1917
Commanders:	Oblt.z.S. Friedrich Moecke 15 September 1916 – 8 February 1917
Operations:	4 patrols
Victories:	9 merchant ships sunk (10,346 GRT) 1 auxiliary warship sunk (275 GRT) 3 merchant ships damaged (18,836 GRT)