Research any topic before you write.
Find related topics. | Discover entities. | See connections. | Build a topical map.
The Hydra class were a class of three paddlewheel steam sloops of the British Royal Navy. They saw active service variously in the Baltic during the Crimean War, against Ottoman forces in Syria and against slavers in West Africa. Latterly, Hydra and Hecate were used for surveys in the Mediterranean, the Pacific, Australia and the Atlantic, and thus their…
Regions, Design & Service
Explore the main themes, entities and connections around Hydra-class sloop. Start with the topic map, then use the sections below for research and deeper semantic analysis.
Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.
High-confidence facts extracted from structured source data. Use them as anchors for further research.
Browse the full topic structure. Each item opens a new analysis centered on that subject.
Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.
See the strongest relationship patterns around the current topic before diving into the raw triples.
Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.
hydra hecate hecla steam served mediterranean ships service west africa class royal navy including operations british syria 1863 1854 built
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Hydra-class sloop | Armament | 2 × 32-pounder (50 cwt) guns | 1.00 | infobox |
| Hydra-class sloop | Armament | 2 × 8-inch (204 mm) 65 cwt pivot guns | 1.00 | infobox |
| Hydra-class sloop | Beam | 32 ft 10 in (10.0 m) | 1.00 | infobox |
| Hydra-class sloop | Builders | Chatham Dockyard | 1.00 | infobox |
| Hydra-class sloop | Built | 1837–1839 | 1.00 | infobox |
| Hydra-class sloop | Complement | 135 | 1.00 | infobox |
| Hydra-class sloop | Completed | 3 | 1.00 | infobox |
| Hydra-class sloop | Cost | £37,239[Note 1] | 1.00 | infobox |
| Hydra-class sloop | Depth of hold | 20 ft 4 in (6.2 m) | 1.00 | infobox |
| Hydra-class sloop | Displacement | 1,096 long tons (1,114 t) | 1.00 | infobox |
| Hydra-class sloop | Draught | 12 ft 1 in (3.7 m) (forward) | 1.00 | infobox |
| Hydra-class sloop | Draught | 13 ft 0 in (4.0 m) (aft) | 1.00 | infobox |
| Hydra-class sloop | In commission | 1838–1870 | 1.00 | infobox |
| Hydra-class sloop | Installed power | Hydra: 220 nhp | 1.00 | infobox |
| Hydra-class sloop | Installed power | Hecla & Hecate: 240 nhp | 1.00 | infobox |
| Hydra-class sloop | Length | 165 ft 0 in (50.3 m) (gundeck) | 1.00 | infobox |
| Hydra-class sloop | Length | .mw-parser-output .frac{white-space:nowrap}.mw-parser-output .frac .num,.mw-parser-output .frac .den{font-size:80%;line-height:0;vertical-align:super}.mw-parser-output .frac .de… | 1.00 | infobox |
| Hydra-class sloop | Name | Hydra-class steam sloop | 1.00 | infobox |
| Hydra-class sloop | Operators | Royal Navy | 1.00 | infobox |
| Hydra-class sloop | Preceded by | HMS Gorgon | 1.00 | infobox |
| Hydra-class sloop | Propulsion | Hydra: | 1.00 | infobox |
| Hydra-class sloop | Propulsion | Boulton and Watt side-lever steam engine | 1.00 | infobox |
| Hydra-class sloop | Propulsion | Iron tubular boilers | 1.00 | infobox |
| Hydra-class sloop | Propulsion | Side paddles | 1.00 | infobox |
| Hydra-class sloop | Propulsion | Hecla & Hecate: | 1.00 | infobox |
| Hydra-class sloop | Propulsion | Sinclair & Scott side-lever steam engine | 1.00 | infobox |
| Hydra-class sloop | Retired | 3 | 1.00 | infobox |
| Hydra-class sloop | Sail plan | Brig rig | 1.00 | infobox |
| Hydra-class sloop | Speed | 9 knots (17 km/h) (under steam) | 1.00 | infobox |
| Hydra-class sloop | Succeeded by | Merlin-class sloop | 1.00 | infobox |
These clusters group vocabulary that occurs around closely connected concepts in the source material.
Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.