Bulwark-class ship of the line

Royal Alfred in 1867
Class overview
Operators Royal Navy
Preceded byDuncan class
Built1859–1870
In commission1863–1889
Planned12
Completed7
Cancelled5 (including 2 "suspended" on the stocks and never finished)
General characteristics [1]
TypeSteam two-decker 91-gun line-of-battle ship
Displacement5,950 long tons (6,045 t)
Tons burthen3715 tons BM
Length
  • 252 ft (77 m) o/a
  • 213 ft 9.25 in (65.1574 m) in keel-line
Beam58 ft (18 m)
Draught25 ft 6 in (7.77 m)
Propulsion
  • 800 nhp steam engine
  • 3,400–3,500 ihp (2,535–2,610 kW)
Sail plan
  • Main mast : 67 ft × 40 in
  • Fore mast : 61 ft × 37 in
  • Mizzen mast : 51 ft 6 in × 27 in
Speed12.5–13.4 knots (23.2–24.8 km/h) under power
Complement860
Armament

The Bulwark class were the final class of wooden line-of-battle ships laid down for the Royal Navy. They were laid down after HMS Warrior. In March 1861 their construction was suspended, and seven were later converted to iron-clads. HMS Bulwark and HMS Robust were kept on the stocks almost complete, in case of need, until they were scrapped in 1873 and 1872.

  1. ^ Lambert, "Battleships in Transition", p122-6.