HMS ''K12'' was a K class submarine built by

Armstrong Whitworth Sir W G Armstrong Whitworth & Co Ltd was a major British manufacturing company of the early years of the 20th century. With headquarters in Elswick, Newcastle upon Tyne, Armstrong Whitworth built armaments, ships, locomotives, automobiles and ...

Newcastle upon Tyne Newcastle upon Tyne ( RP: , ), or simply Newcastle, is a city and metropolitan borough in Tyne and Wear, England. The city is located on the River Tyne's northern bank and forms the largest part of the Tyneside built-up area. Newcastle is ...

. She was laid down in October 1915 and commissioned in August 1917. ''K12'' took part in the Battle of May Island, surviving the disastrous exercise. ''K12'' collided with in 1924; ''K2'' smashed a hole in the forward casing of ''K12'' while ''K2'' buckled her bows for about six feet. ''K12'' was scrapped in 1926 in Charlestown.

Design

''K12'' displaced when at the surface and while submerged. It had a total length of , a beam of , and a draught of . The submarine was powered by two oil-fired

Yarrow Shipbuilders Yarrow Shipbuilders Limited (YSL), often styled as simply Yarrows, was a major shipbuilding firm based in the Scotstoun district of Glasgow on the River Clyde. It is now part of BAE Systems Surface Ships, owned by BAE Systems, which has also op ...

boilers supplying one geared Brown-Curtis or Parsons steam turbine; this developed 10,500 ship horsepower (7,800 kW) to drive two screws. Submerged power came from four electric motors each producing . It was also had an diesel engine to be used when steam was being raised, or instead of raising steam. The submarine had a maximum surface speed of and a submerged speed of . It could operate at depths of at for . ''K9'' was armed with ten

torpedo tube A torpedo tube is a cylindrical device for launching torpedoes. There are two main types of torpedo tube: underwater tubes fitted to submarines and some surface ships, and deck-mounted units (also referred to as torpedo launchers) installed aboa ...

s, two

deck gun A deck gun is a type of naval artillery mounted on the deck of a submarine. Most submarine deck guns were open, with or without a shield; however, a few larger submarines placed these guns in a turret. The main deck gun was a dual-purpose ...

s, and a anti-aircraft gun. Its torpedo tubes were fitted to the bows, the midship section, and two were mounted on the deck. Its

complement A complement is something that completes something else. Complement may refer specifically to: The arts * Complement (music), an interval that, when added to another, spans an octave ** Aggregate complementation, the separation of pitch-clas ...

was fifty-nine crew members.

References

Bibliography

* {{DEFAULTSORT:K12 British K-class submarines Royal Navy ship names Ships built on the River Tyne 1917 ships Ships built by Armstrong Whitworth