SM U-64

History
German Empire
Name	U-64
Ordered	17 May 1915
Builder	Germaniawerft, Kiel
Yard number	248
Laid down	19 May 1915
Launched	29 February 1916
Commissioned	15 April 1916
Fate	Sunk 17 June 1918 by depth charges from HMS Lychnis at 38°07′N 10°27′E / 38.117°N 10.450°E. 38 dead and 5 survivors.
General characteristics
Class and type	Type U 63 submarine
Displacement	810 t (800 long tons) surfaced; 927 t (912 long tons) submerged;
Length	68.36 m (224 ft 3 in) (o/a); 55.55 m (182 ft 3 in) (pressure hull);
Beam	6.30 m (20 ft 8 in) (oa); 4.15 m (13 ft 7 in) (pressure hull);
Height	7.65 m (25 ft 1 in)
Draught	4.04 m (13 ft 3 in)
Installed power	2 × 2,200 PS (1,618 kW; 2,170 shp) surfaced; 2 × 1,200 PS (883 kW; 1,184 shp) submerged;
Propulsion	2 shafts
Speed	16.5 knots (30.6 km/h; 19.0 mph) surfaced; 9.0 knots (16.7 km/h; 10.4 mph) submerged;
Range	9,170 nmi (16,980 km; 10,550 mi) at 8 knots (15 km/h; 9.2 mph) surfaced; 60 nmi (110 km; 69 mi) at 5 knots (9.3 km/h; 5.8 mph) submerged;
Test depth	50 m (164 ft 1 in)
Complement	36
Armament	4 × 50 cm (19.7 in) torpedo tubes (two bow, two stern); 8 torpedoes; 1 × 8.8 cm (3.5 in) SK L/30 deck gun;
Service record
Part of:	IV Flotilla; 31 May – 19 November 1916; Pola / Mittelmeer / Mittelmeer I Flotilla; 19 November 1916 – 17 June 1918;
Commanders:	Kptlt. Robert Moraht; 15 April 1916 – 17 June 1918;
Operations:	10 patrols
Victories:	44 merchant ships sunk ; (129,327 GRT); 1 warship sunk ; (18,300 tons); 1 auxiliary warship sunk ; (243 GRT); 3 merchant ships damaged ; (9,420 GRT); 1 merchant ship taken as prize ; (186 GRT);

SM U-64 was a Type U-63 class submarine in the Kaiserliche Marine that served during World War I. She was built in 1916 and served in the Mediterranean Sea.

On 19 March 1917, while on patrol in the Tyrrhenian Sea, U-64 encountered the French battleship Danton 30 nautical miles (56 km; 35 mi) south of Sardinia.^[4] U-64 torpedoed Danton which sank in 45 minutes with the loss of 296 men.

During her career, U-64 was under the command of Kapitänleutnant Robert Moraht. She was lost on 17 June 1918.

^ Helgason, Guðmundur. "WWI U-boats: U 64". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net.
^ Gröner 1991, pp. 8–10.
^ Helgason, Guðmundur. "WWI U-boat commanders: Robert Moraht". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 16 March 2015.
^ BBC, "Danton wreck".

[1] Helgason, Guðmundur. "WWI U-boats: U 64". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net.

[FOOTNOTEGröner19918–10-2] Gröner 1991, pp. 8–10.

[3] Helgason, Guðmundur. "WWI U-boat commanders: Robert Moraht". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 16 March 2015.

[FOOTNOTEBBC,_"Danton_wreck"-4] BBC, "Danton wreck".

[1]

[2]

[3]

[4]

History
German Empire
Name	U-64
Ordered	17 May 1915
Builder	Germaniawerft, Kiel
Yard number	248
Laid down	19 May 1915
Launched	29 February 1916
Commissioned	15 April 1916
Fate	Sunk 17 June 1918 by depth charges from HMS Lychnis at 38°07′N 10°27′E / 38.117°N 10.450°E / 38.117; 10.450. 38 dead and 5 survivors.^[1]
General characteristics ^[2]
Class and type	Type U 63 submarine
Displacement	810 t (800 long tons) surfaced 927 t (912 long tons) submerged
Length	68.36 m (224 ft 3 in) (o/a) 55.55 m (182 ft 3 in) (pressure hull)
Beam	6.30 m (20 ft 8 in) (oa) 4.15 m (13 ft 7 in) (pressure hull)
Height	7.65 m (25 ft 1 in)
Draught	4.04 m (13 ft 3 in)
Installed power	2 × 2,200 PS (1,618 kW; 2,170 shp) surfaced 2 × 1,200 PS (883 kW; 1,184 shp) submerged
Propulsion	2 shafts
Speed	16.5 knots (30.6 km/h; 19.0 mph) surfaced 9.0 knots (16.7 km/h; 10.4 mph) submerged
Range	9,170 nmi (16,980 km; 10,550 mi) at 8 knots (15 km/h; 9.2 mph) surfaced 60 nmi (110 km; 69 mi) at 5 knots (9.3 km/h; 5.8 mph) submerged
Test depth	50 m (164 ft 1 in)
Complement	36
Armament	4 × 50 cm (19.7 in) torpedo tubes (two bow, two stern) 8 torpedoes 1 × 8.8 cm (3.5 in) SK L/30 deck gun
Service record
Part of:	IV Flotilla 31 May – 19 November 1916 Pola / Mittelmeer / Mittelmeer I Flotilla 19 November 1916 – 17 June 1918
Commanders:	Kptlt. Robert Moraht^[3] 15 April 1916 – 17 June 1918
Operations:	10 patrols
Victories:	44 merchant ships sunk (129,327 GRT) 1 warship sunk (18,300 tons) 1 auxiliary warship sunk (243 GRT) 3 merchant ships damaged (9,420 GRT) 1 merchant ship taken as prize (186 GRT)