| History | |
|---|---|
 United Kingdom | |
| Name | HMSB3 |
| Builder | Vickers |
| Launched | 31 October 1905 |
| Completed | 19 January 1906 |
| Fate | Sold forscrap, 20 December 1919 |
| General characteristics | |
| Class & type | B-class submarine |
| Displacement |
|
| Length | 142 ft 3 in (43.4 m) |
| Beam | 12 ft 7 in (3.8 m) |
| Draught | 11 ft 2 in (3.4 m) |
| Installed power | |
| Propulsion |
|
| Speed |
|
| Range | 1,000 nmi (1,900 km; 1,200 mi) at 8.7 kn (16.1 km/h; 10.0 mph) on the surface |
| Test depth | 100 feet (30.5 m) |
| Complement | 2 officers and 13 ratings |
| Armament | 2 ×18 in (450 mm) bowtorpedo tubes |
HMSB3 was one of 11B-class submarines built for theRoyal Navy in the first decade of the 20th century. The boat survived theFirst World War and was sold forscrap in 1919.
The B class was an enlarged and improved version of the precedingA class. The submarines had a length of 142 feet 3 inches (43.4 m)overall, abeam of 12 feet 7 inches (3.8 m) and a meandraft of 11 feet 2 inches (3.4 m). Theydisplaced 287 long tons (292 t) on the surface and 316 long tons (321 t) submerged. The B-class submarines had a crew of two officers and thirteenratings.[1]
For surface running, the boats were powered by a single 16-cylinder 600-brake-horsepower (447 kW)Vickerspetrol engine that drove onepropeller shaft. When submerged the propeller was driven by a 180-horsepower (134 kW)electric motor. They could reach 12knots (22 km/h; 14 mph) on the surface and 6.5 knots (12.0 km/h; 7.5 mph) underwater.[1] On the surface, the B class had a range of 1,000nautical miles (1,900 km; 1,200 mi) at 8.7 knots (16.1 km/h; 10.0 mph).[2]
The boats were armed with two18-inch (450 mm)torpedo tubes 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]
B3 waslaid down by Vickers at theirBarrow-in-Furnessshipyard, launched 31 October 1905 and completed 19 January 1906. When the war began in 1914, the boat was assigned to defend theStraits of Dover and was then transferred to Scotland in 1915 to defend various ports there.B3 was sold for scrap on 20 December 1919.