HMS ''B3'' was one of 11 B-class submarines built for the

Royal Navy The Royal Navy (RN) is the United Kingdom's naval warfare force. Although warships were used by English and Scottish kings from the early medieval period, the first major maritime engagements were fought in the Hundred Years' War against F ...

in the first decade of the 20th century. The boat survived the First World War and was sold for

scrap Scrap consists of Recycling, recyclable materials, usually metals, left over from product manufacturing and consumption, such as parts of vehicles, building supplies, and surplus materials. Unlike waste, scrap Waste valorization, has monetary ...

in 1919.

Design and description

The B class was an enlarged and improved version of the preceding A class. The submarines had a length of overall, a

beam Beam may refer to: Streams of particles or energy *Light beam, or beam of light, a directional projection of light energy **Laser beam *Particle beam, a stream of charged or neutral particles **Charged particle beam, a spatially localized grou ...

of and a mean draft of . They displaced on the surface and submerged. The B-class submarines had a crew of two officers and thirteen ratings.Gardiner & Gray, p. 87 For surface running, the boats were powered by a single 16-cylinder

Vickers Vickers was a British engineering company that existed from 1828 until 1999. It was formed in Sheffield as a steel foundry by Edward Vickers and his father-in-law, and soon became famous for casting church bells. The company went public in 18 ...

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that drove one propeller shaft. When submerged the propeller was driven by a

electric motor An electric motor is an Electric machine, electrical machine that converts electrical energy into mechanical energy. Most electric motors operate through the interaction between the motor's magnetic field and electric current in a Electromagneti ...

. They could reach on the surface and underwater. On the surface, the B class had a range of at .Akermann, p. 123 The boats were armed with two 18-inch (450 mm)

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 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.Harrison, Chapter 27

Construction and career

''B3'' was

laid down Laying the keel or laying down is the formal recognition of the start of a ship's construction. It is often marked with a ceremony attended by dignitaries from the shipbuilding company and the ultimate owners of the ship. Keel laying is one o ...

by Vickers at their

Barrow-in-Furness Barrow-in-Furness is a port town in Cumbria, England. Historically in Lancashire, it was incorporated as a municipal borough in 1867 and merged with Dalton-in-Furness Urban District in 1974 to form the Borough of Barrow-in-Furness. In 2023 the ...

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, launched 31 October 1905 and completed 19 January 1906. When the war began in 1914, the boat was assigned to defend the

Straits of Dover The Strait of Dover or Dover Strait (french: Pas de Calais - ''Strait of Calais''), is the strait at the narrowest part of the English Channel, marking the boundary between the Channel and the North Sea, separating Great Britain from continent ...

and was then transferred to Scotland in 1915 to defend various ports there. ''B3'' was sold for scrap on 20 December 1919.

Notes

References

* * * * * {{DEFAULTSORT:B03 British B-class submarines World War I submarines of the United Kingdom Ships built in Barrow-in-Furness Royal Navy ship names 1905 ships