# HMS C12

> Mediated Wiki article. Canonical URL: https://mediated.wiki/source/HMS_C12
> Markdown URL: https://mediated.wiki/source/HMS_C12.md
> Source: https://en.wikipedia.org/wiki/HMS_C12
> Source revision: 1345229570
> License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/)

**HMS *C12*** was one of 38 [C-class submarines](/source/British_C-class_submarine) built for the [Royal Navy](/source/Royal_Navy) in the first decade of the 20th century. The boat survived the [First World War](/source/First_World_War) and was sold for [scrap](/source/Ship_breaking) in 1920.

## Design and description

The C class was essentially a repeat of the preceding [B class](/source/British_B-class_submarine), albeit with better performance underwater. The submarine had a length of 142 feet 3 inches (43.4 m) [overall](/source/Length_overall), a [beam](/source/Beam_(nautical)) of 13 feet 7 inches (4.1 m) and a mean [draft](/source/Draft_(ship)) of 11 feet 6 inches (3.5 m). They [displaced](/source/Displacement_(ship)) 287 long tons (292 t) on the surface and 316 long tons (321 t) submerged. The C-class submarines had a crew of two officers and fourteen [ratings](/source/Naval_rating).[1]

For surface running, the boats were powered by a single 16-cylinder 600-horsepower (447-kilowatt) [Vickers](/source/Vickers) [petrol engine](/source/Petrol_engine) that drove one [propeller shaft](/source/Propeller_shaft). When submerged the propeller was driven by a 300-horsepower (224-kilowatt) [electric motor](/source/Electric_motor).[1] They could reach 12 knots (22 km/h; 14 mph) on the surface and 7 knots (13 km/h; 8.1 mph) underwater. On the surface, the C class had a range of 910 nautical miles (1,690 km; 1,050 mi) at 12 knots (22 km/h; 14 mph).[2]

The boats were armed with two [18-inch (45 cm)](/source/British_18_inch_torpedo) [torpedo tubes](/source/Torpedo_tube) in the bow. They could carry a pair of reload torpedoes, but generally did not as they would have to remove an equal weight of fuel in compensation.[3]

## Construction and career

*C12* was built by [Vickers](/source/Vickers) at their [Barrow-in-Furness](/source/Barrow-in-Furness) [shipyard](/source/Shipyard), [laid down](/source/Laid_down) on 27 November 1906 and was commissioned on 19 January 1908. The boat was sunk in a collision with a [destroyer](/source/Destroyer) in the [Humber Estuary](/source/Humber_Estuary) on 6 October 1918. She was salvaged and recommissioned. *C12* was sold for scrap on 2 February 1920.

## Notes

1. Gardiner & Gray, p. 87

1. Harrison, Chapter 3

1. Harrison, Chapter 27

## References

- Akermann, Paul (2002). *Encyclopaedia of British Submarines 1901–1955*. reprint of the 1989 ed. Penzance, Cornwall: Periscope Publishing. ISBN 1-904381-05-7.
- *Conway's All the World's Fighting Ships 1906–1921*. Annapolis, Maryland: Naval Institute Press. 1985. ISBN 0-85177-245-5.
- Harrison, A. N. (January 1979). ["The Development of HM Submarines From Holland No. 1 (1901) to Porpoise (1930) (BR3043)"](http://rnsubs.co.uk/dits-bits/br-3043.html). RN Subs. Retrieved 27 September 2022.

## External links

- [MaritimeQuest HMS *C12* page](http://www.maritimequest.com/daily_event_archive/2006/oct/06_hms_c12.htm)

---
Adapted from the Wikipedia article [HMS C12](https://en.wikipedia.org/wiki/HMS_C12) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/HMS_C12?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.