Overview
The Devastation class marked a decisive Royal Navy break with the fully rigged ocean-going ironclad. Devastation and Thunderer were mastless turret ships built around steam propulsion, heavy armor and all-round turret fire.
Developed for Royal Navy, Devastation class belongs to the Battleships and capital ships family and is associated with Late 19th century. Its documented designations include Turret battleship, while its intended roles include Fleet combatant.
Development and construction
The class concentrated its main battery in two armored turrets and dispensed with sail power. Devastation also incorporated steam steering and extensive watertight subdivision.
The documented program for Devastation class lists 2 planned, 2 ordered, 2 laid down, 2 completed, and 0 cancelled, with design work beginning in 1869, construction beginning in 1869, and construction ending in 1877. These figures define the scale and chronology currently supported by the class sources.
Design characteristics and intended role
The surviving classification data associates Devastation class with Ironclad, Turret, Steam, No sail, and Ram bow. Read together with the recorded roles of Fleet combatant, these attributes show the operational problem the design was intended to address without implying specifications that the sources do not establish.
The class record identifies Royal Navy as the principal design or service authority. Where individual ships changed navy, name, or pennant, those later identities are retained on the ship pages rather than treated as separate vessels.
Service history and class roster
Both ships served into the late nineteenth century and underwent modernization as naval artillery and machinery advanced.
The class roster currently links 2 ships. Named members include HMS Devastation and HMS Thunderer. The linked ships are associated with Royal Navy.
Historical significance
The class established a recognizable path toward the mastless battleship and is a major bridge between the ironclad era and the later pre-dreadnought fleet.
Devastation class is most useful when read as both a design and a group of individual careers. The class page establishes the shared technical and operational context; the linked ship pages preserve differences in construction, service identity, deployment, transfer, preservation, and fate where those details are documented.
Ships in this class
Showing 2 recorded class members.
Sources and further reading
- HMS Devastation (1871); Warship: Battleship; Turret ↗Royal Museums Greenwich · accessed 2026-09-18
- Devastation (1871); Thunderer (1872) — Admiralty plan ↗Royal Museums Greenwich · accessed 2026-09-18