Albacore-class gunboat (1883)
| HMS Watchful | |
| Class overview | |
|---|---|
| Name | Albacore class | 
| Builders | Laird Brothers, Birkenhead | 
| Operators | Royal Navy | 
| Preceded by | Banterer class | 
| Succeeded by | Bramble class | 
| Built | 1883 | 
| In commission | 1884–1907 | 
| Completed | 3 | 
| Retired | 3 | 
| General characteristics | |
| Type | Composite screw gunboat | 
| Displacement | 560 tons standard | 
| Length | 135 ft 0 in (41.1 m) pp | 
| Beam | 26 ft 6 in (8.1 m) | 
| Draught | 10 ft 3 in (3.1 m) | 
| Depth of hold | 11 ft 6 in (3.5 m) | 
| Installed power | 650 ihp (480 kW) | 
| Propulsion | 
 | 
| Speed | 10.7 kn (19.8 km/h) | 
| Crew | 60 | 
| Armament | 
 | 
The Albacore-class gunboat was a class of three gunboats built for the Royal Navy in 1883. The name had already been used for a class of 98 gunboats built during the Great Armament of the Crimean War.