HMSH12
 HMS H4, another submarine of the same class
| |
| History | |
|---|---|
 United Kingdom | |
| Name | HMSH12 |
| Builder | Fore River Yard |
| Commissioned | 1915 |
| Fate | Sold, April 1920 |
| General characteristics | |
| Class and type | British H-classsubmarine |
HMSH12was aBritishH-classsubmarinebuilt byFore River Yard,Quincy,Massachusetts.She was laid down on an unknown date and commissioned in 1915. HMSH12along withHMSH11andHMSH13toHMSH20were all built inAmericabut were interned by the United States government until the United States enteredWorld War I. HMSH12was sold in April 1920 inDover.
Design
[edit]Like all pre-H21British H-class submarines,H12had a displacement of 364 long tons (370 t) at the surface and 434 long tons (441 t) while submerged.[1]It had a total length of 150 feet 3 inches (45.8 m), a beam of 15 feet 4 inches (4.67 m), and a draught of 12 feet (3.7 m).[2]It contained a diesel engines providing a total power of 480 horsepower (360 kW) and two electric motors each providing 320 horsepower (240 kW) power.[2]The use of its electric motors made the submarine travel at 11 knots (20 km/h; 13 mph). It would normally carry 16.4 long tons (16.7 t) of fuel and had a maximum capacity of 18 long tons (18 t).[3]
The submarine had a maximum surface speed of 13 knots (24 km/h; 15 mph) and a submerged speed of 11 knots (20 km/h; 13 mph). British H-class submarines had ranges of 1,600 nautical miles (3,000 km; 1,800 mi) at speeds of 10 knots (19 km/h; 12 mph).[1]H12was fitted with a 6 pounds (2.7 kg)Hotchkissquick-firing gun(6-pounder) and four 18 inches (460 mm)torpedo tubes.Its torpedo tubes were fitted to thebowsand the submarine was loaded with eight 18 inches (460 mm) torpedoes.[1]It is aHolland 602 type submarinebut was designed to meet Royal Navy specifications. Itscomplementwas twenty-two crew members.[1]
References
[edit]- ^abcd"H-class".Battleships-Cruisers, Cranston Fine Arts.Retrieved20 August2015.
- ^abColledge, J. J.;Warlow, Ben (2006) [1969].Ships of the Royal Navy: The Complete Record of all Fighting Ships of the Royal Navy(Rev. ed.). London: Chatham Publishing.ISBN978-1-86176-281-8.Retrieved fromNaval-Historyon 20 August 2015.
- ^J. D. Perkins (1999)."Building History and Technical Details for Canadian CC-Boats and the Original H-CLASS".Electric Boat Company Holland Patent Submarines.Retrieved20 August2015.
Bibliography
[edit]- Hutchinson, Robert (2001).Jane's submarines: war beneath the waves from 1776 to the present day.London: HarperCollins.ISBN9780007105588.
