SM U-36

SM U-36[Note 1] was a Type 31U-boat in the service of the Imperial German Navy of the German Empire, employed in the commerce war in World War I.

SM U-36, photographed in April 1915 from the ship Batavia V
History
German Empire
Name U-36
Ordered 29 March 1912
Builder Germaniawerft, Kiel
Yard number 196
Laid down 2 January 1913
Launched 6 June 1914
Commissioned 14 November 1914
Fate Sunk on 24 July 1915 by the Q-shipPrince Charles
General characteristics
Class and type German Type U 31 submarine
Displacement
  • 685 t (674 long tons) (surfaced)
  • 878 t (864 long tons) (submerged)
Length
Beam
  • 6.32 m (20 ft 9 in) (o/a)
  • 4.05 m (13 ft 3 in) (pressure hull)
Draught 3.56 m (11 ft 8 in)
Installed power
Propulsion
  • 2 × shafts
  • 2 × 1.60 m (5 ft 3 in) propellers
Speed
  • 16.4 knots (30.4 km/h; 18.9 mph) (surfaced)
  • 9.7 knots (18.0 km/h; 11.2 mph) (submerged)
Range
  • 8,790 nmi (16,280 km; 10,120 mi) at 8 knots (15 km/h; 9.2 mph) (surfaced)
  • 80 nmi (150 km; 92 mi) at 5 knots (9.3 km/h; 5.8 mph) (submerged)
Test depth 50 m (164 ft 1 in)
Boats & landing
craft carried
1 dinghy
Complement 4 officers, 31 enlisted
Armament
Service record
Part of:
  • II Flotilla
  • Unknown start – 24 July 1915
Commanders:
  • Kptlt. Ernst Graeff[1]
  • 14 November 1914 – 24 July 1915
Operations: 2 patrols
Victories:
  • 14 merchant ships sunk
    (12,674 GRT)
  • 3 merchant ships taken as prize
    (3,466 GRT)

. . . SM U-36 . . .

U-36 was laid down on 2 January 1913 at Germaniawerft in Kiel. She was launched on 6 June 1914 and commissioned on 14 November 1914, under the command of Kapitänleutnant Ernst Graeff.[2] During February 1915, she carried out acceptance trials at Kiel,[2] and was attached to the 2d Half-Flotilla in the North Sea in March.[2]

German Type U 31 submarines were double-hulled ocean-going submarines similar to Type 23 and Type 27 subs in dimensions and differed only slightly in propulsion and speed. They were considered very good high sea boats with average manoeuvrability and good surface steering.[3]

U-36 had an overall length of 64.70 m (212 ft 3 in), her pressure hull was 52.36 m (171 ft 9 in) long. The boat’s beam was 6.32 m (20 ft 9 in) (o/a), while the pressure hull measured 4.05 m (13 ft 3 in). Type 31s had a draught of 3.56 m (11 ft 8 in) with a total height of 7.68–8.04 m (25 ft 2 in–26 ft 5 in). The boats displaced a total of 971 tonnes (956 long tons); 685 t (674 long tons) when surfaced and 878 t (864 long tons) when submerged.[3]

U-36 was fitted with two Germania 6-cylinder two-stroke diesel engines with a total of 1,850 metric horsepower (1,361 kW; 1,825 bhp) for use on the surface and two Siemens-Schuckert double-acting electric motors with a total of 1,200 PS (883 kW; 1,184 shp) for underwater use. These engines powered two shafts each with a 1.60 m (5 ft 3 in)propeller, which gave the boat a top surface speed of 16.4 knots (30.4 km/h; 18.9 mph), and 9.7 knots (18.0 km/h; 11.2 mph) when submerged. Cruising range was 8,790 nautical miles (16,280 km; 10,120 mi) at 8 knots (15 km/h; 9.2 mph) on the surface, and 80 nmi (150 km; 92 mi) at 5 knots (9.3 km/h; 5.8 mph) under water. Diving depth was 50 m (164 ft 1 in).[3]

The U-boat was armed with four 50 cm (20 in)torpedo tubes, two fitted in the bow and two in the stern, and carried 6 torpedoes. Additionally U-36 was equipped in 1915 with two 8.8 cm (3.5 in) Uk L/30deck guns. The boat’s complement was 4 officers and 31 enlisted.[3]

. . . SM U-36 . . .

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. . . SM U-36 . . .

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