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Subclass of the A-class destroyers From Wikipedia, the free encyclopedia
Three Janus-class torpedo-boat destroyers (TBDs) served with the Royal Navy. Janus, Lightning and Porcupine were ordered under the 1893-94 Programme, all laid down on 28 March 1894 at Palmer's shipyard at Jarrow and launched during 1895. They displaced 275 tons (light), were 204 feet 6 inches (62.33 m) long and produced 3,900 hp (2,900 kW) from their Reed water tube boilers which gave them a top speed of 27 knots (50 km/h; 31 mph).
Class overview | |
---|---|
Name | Janus class |
Builders | Palmers Shipbuilding and Iron Company, Jarrow |
Operators | Royal Navy |
Preceded by | Hardy class |
Succeeded by | Salmon class |
Built | 1895 |
In commission | 1895–1920 |
Completed | 3 |
Lost | 1 |
Retired | 2 |
General characteristics | |
Type | Torpedo Boat Destroyer |
Displacement | 275 long tons (279 t) |
Length |
|
Beam | 19 feet 9 inches (6.02 m) |
Draught | 8 feet (2.4 m) |
Propulsion | Reed boilers, 3,900 hp (2,908 kW) |
Speed | 27 knots (50 km/h; 31 mph) |
Under the 1893–1894 Naval Estimates, the British Admiralty placed orders for 36 torpedo-boat destroyers, all to be capable of 27 knots (50 km/h; 31 mph), the "27-knotters", as a follow-on to the six prototype "26-knotters" ordered in the previous 1892–1893 Estimates. As was typical for torpedo craft at the time, the Admiralty left detailed design to the builders, laying down only broad requirements.[1][2]
In September 1913 the Admiralty re-classed all the remaining 27-knotter destroyers, including all three Janus-class vessels, as A Class destroyers.
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