HMS K12
| Company type | Submarine |
|---|---|
| Industry | Naval military vessel |
| Founded | October 1915 |
| Headquarters | Newcastle upon Tyne , United Kingdom |
| Products | Submarines |
HMS K12 was a K-class vessel constructed by Armstrong Whitworth in Newcastle upon Tyne. The keel was laid in October 1915, and the submarine entered service in August 1917.
K12 participated in the Battle of May Island and survived the catastrophic naval exercise. In 1924, it collided with K2, resulting in a breach in K12’s forward casing, while K2 sustained approximately six feet of bow damage. The submarine was dismantled in Charlestown in 1926.
Design
The surfaced displacement of K12 was approximately 1,800 long tons (1,800 t), increasing to around 2,600 long tons (2,600 t) when submerged. Its overall length measured 338 feet (103 m), with a beam spanning 26 feet 6 inches (8.08 m) and a draught of about 20 feet 11 inches (6.38 m).[1] Propulsion was provided by two oil-fired boilers manufactured by Yarrow Shipbuilders, which fed steam to a single geared Brown-Curtis or Parsons turbine producing 10,500 shaft horsepower (7,800 kW) that powered two propellers measuring 7 feet 6 inches (2.29 m) in diameter. Underwater propulsion relied on four electric motors, each delivering between 350 to 360 horsepower (260 to 270 kW).[1] Additionally, an 800 horsepower (600 kW) diesel engine was available for use during steam raising or as an alternative power source.[2]
The vessel could achieve a top speed of 24 knots (44 km/h; 28 mph) on the surface and between 9 to 9.5 knots (16.7 to 17.6 km/h; 10.4 to 10.9 mph) submerged.[1][3] Operational depth reached approximately 150 feet (46 m), maintaining a speed of 2 knots (3.7 km/h; 2.3 mph) for a range of 80 nautical miles (150 km; 92 mi).[4] Armament included ten 18 inches (460 mm) torpedo tubes positioned at the bow, midship, and two mounted on the deck, supplemented by two 4 inches (100 mm) deck guns and a single 3 inches (76 mm) anti-aircraft gun.[1][4] The crew complement consisted of fifty-nine personnel.[3]
References
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Bibliography
- Hutchinson, Robert. Submarines, War Beneath The Waves, from 1776 to the Present Day.