Puneet Varma


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Name  HMS D6
Commissioned  19 April 1912
Class and type  D class submarine
Launched  24 October 1911
Laid down  24 February 1910
Fate  Sunk 28 June 1918
Construction started  24 February 1910
Builder  Vickers-Armstrongs
Displacement  Surfaced= 483 tons / Submerged= 595 tons

HMS D6 was one of eight D-class submarine built for the Royal Navy during the first decade of the 20th century.



The D-class submarines were designed as improved and enlarged versions of the preceding C class, with diesel engines replacing the dangerous petrol engines used earlier. D3 and subsequent boats were slightly larger than the earlier boats. They had a length of 164 feet 7 inches (50.2 m) overall, a beam of 20 feet 5 inches (6.2 m) and a mean draught of 11 feet 5 inches (3.5 m). They displaced 495 long tons (503 t) on the surface and 620 long tons (630 t) submerged. The D-class submarines had a crew of 25 officers and other ranks and were the first to adopt saddle tanks.

For surface running, the boats were powered by two 600-brake-horsepower (447 kW) diesels, each driving one propeller shaft. When submerged each propeller was driven by a 275-horsepower (205 kW) electric motor. They could reach 14 knots (26 km/h; 16 mph) on the surface and 9 knots (17 km/h; 10 mph) underwater. On the surface, the D class had a range of 2,500 nautical miles (4,600 km; 2,900 mi) at 10 knots (19 km/h; 12 mph).

The boats were armed with three 21-inch (53.3 cm) torpedo tube, two in the bow and one in the stern. They carried one reload for each tube, a total of six torpedoes.

Construction and career

D6 was laid down on 24 February 1910 by Vickers at their Barrow shipyard, launched 24 October 1911 and was commissioned on 19 April 1912. D6 was sunk by UB-73 73 miles north of Inishtrahull Island off the west coast of Ireland on 24 or 28 June 1918. There were two survivors who were taken prisoner. Their post-war report apparently prompted the British to conclude that the torpedo that sank her had employed a magnetic pistol.


HMS D6 Wikipedia

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