HMS K7
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HMS K7 was a K class submarine built by HM Dockyard, Devonport. She was laid down on 8 November 1915 and commissioned in July 1917.
K7 was the only one of the disastrous K class to engage with an enemy; on 16 June 1917 she fired a salvo of torpedoes at the U-boat U-95 and scored a direct hit. However, the torpedo failed to explode with what has been described as typical "K" luck; K-7 escaped retaliation by steaming away at speed.[1]
K7 was involved in an accident with the 4th Light Cruiser Squadron. She was also involved in the catastrophic series of accidents during a night exercise that came to be known sarcastically as the Battle of May Island; K7 was damaged by running over the sinking Script error: No such module "WPSHIPS utilities".. K7 was sold on 9 September 1921 at Sunderland.
Design
K7 displaced Script error: No such module "convert". when at the surface and Script error: No such module "convert". while submerged.[2] It had a total length of Script error: No such module "convert"., a beam of Script error: No such module "convert"., and a draught of Script error: No such module "convert"..[3] The submarine was powered by two oil-fired Yarrow Shipbuilders boilers supplying one geared Brown-Curtis or Parsons steam turbine that developed 10,500 ship horsepower (7,800 kW) to drive two Script error: No such module "convert". screws. Submerged power came from four electric motors each producing Script error: No such module "convert"..[3] It also had an Script error: No such module "convert". diesel engine to be used when steam was being raised, or instead of raising steam.[4]
The submarine had a maximum surface speed of Script error: No such module "convert". and a submerged speed of Script error: No such module "convert"..[3][5] It could operate at depths of Script error: No such module "convert". at Script error: No such module "convert". for Script error: No such module "convert"..[2] K7 was armed with ten Script error: No such module "convert". torpedo tubes, two Script error: No such module "convert". deck guns, and a Script error: No such module "convert". anti-aircraft gun.[3] Its torpedo tubes were fitted to the bows, the midship section, and two were mounted on the deck.[2] Its complement was fifty-nine crew members.[5]
References
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Bibliography
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