SM UC-91

History
German Empire
Name	UC-91
Ordered	12 January 1916
Builder	Blohm & Voss, Hamburg
Yard number	325
Launched	19 January 1918
Commissioned	31 July 1918
Fate	Sank while on way to surrender, 10 February 1919
General characteristics
Class & type	Type UC III submarine
Displacement	491 t (483 long tons), surfaced; 571 t (562 long tons), submerged;
Length	56.51 m (185 ft 5 in) (o/a); 42.20 m (138 ft 5 in) (pressure hull);
Beam	5.54 m (18 ft 2 in) (o/a)
Draft	3.77 m (12 ft 4 in)
Propulsion	2 × propeller shafts; 2 × 6-cylinder, 4-stroke diesel engines, 600 PS (440 kW; 590 bhp); 2 × electric motors, 770 PS (570 kW; 760 shp);
Speed	11.5 knots (21.3 km/h; 13.2 mph), surfaced; 6.6 knots (12.2 km/h; 7.6 mph), submerged;
Range	9,850 nautical miles (18,240 km; 11,340 mi) at 7 knots (13 km/h; 8.1 mph), surfaced; 40 nmi (74 km; 46 mi) at 4.5 knots (8.3 km/h; 5.2 mph), submerged;
Test depth	75 m (246 ft)
Complement	32
Armament	6 × 100 cm (39.4 in) mine tubes; 14 × UC 200 mines; 3 × 50 cm (19.7 in) torpedo tubes (2 bow external; one stern); 7 × torpedoes; 1 x 10.5 cm (4.1 in) SK L/45 or 8.8 cm (3.5 in) Uk L/30 deck gun;
Notes	15-second diving time
Service record
Commanders:	Kptlt. Bernhard Gerke; 31 July – 5 September 1918;
Operations:	None
Victories:	None

History

German Empire
Name	UC-91
Ordered	12 January 1916
Builder	Blohm & Voss, Hamburg
Yard number	325
Launched	19 January 1918
Commissioned	31 July 1918
Fate	Sank while on way to surrender, 10 February 1919
General characteristics
Class & type	Type UC III submarine
Displacement	491 t (483 long tons), surfaced 571 t (562 long tons), submerged
Length	56.51 m (185 ft 5 in) (o/a) 42.20 m (138 ft 5 in) (pressure hull)
Beam	5.54 m (18 ft 2 in) (o/a)
Draft	3.77 m (12 ft 4 in)
Propulsion	2 × propeller shafts 2 × 6-cylinder, 4-stroke diesel engines, 600 PS (440 kW; 590 bhp) 2 × electric motors, 770 PS (570 kW; 760 shp)
Speed	11.5 knots (21.3 km/h; 13.2 mph), surfaced 6.6 knots (12.2 km/h; 7.6 mph), submerged
Range	9,850 nautical miles (18,240 km; 11,340 mi) at 7 knots (13 km/h; 8.1 mph), surfaced 40 nmi (74 km; 46 mi) at 4.5 knots (8.3 km/h; 5.2 mph), submerged
Test depth	75 m (246 ft)
Complement	32
Armament	6 × 100 cm (39.4 in) mine tubes 14 × UC 200 mines 3 × 50 cm (19.7 in) torpedo tubes (2 bow external; one stern) 7 × torpedoes 1 x 10.5 cm (4.1 in) SK L/45 or 8.8 cm (3.5 in) Uk L/30 deck gun
Notes	15-second diving time
Service record
Commanders:	Kptlt. Bernhard Gerke 31 July – 5 September 1918
Operations:	None
Victories:	None