Duncan-class ship of the line (1859)

HMS Duncan, Halifax, Nova Scotia c. 1865
Class overview
NameDuncan class
OperatorsRoyal Navy
Preceded byConqueror class
Succeeded byBulwark class
Built1855–1861
In service1863–1870
Planned2
Completed2
Scrapped2
General characteristics
Class and typeDuncan class
Type101-gun screw two-decker
Displacement5,950 long tons
Tons burthen3,715 Builder's Old Measurement
Length
  • 252 ft 0 in (76.81 m) overall
  • 213 ft 9.25 in (65.1574 m) keel-line
Beam58 ft 0 in (17.68 m) extreme
DraughtGibraltar (not masted or stores) 18 ft 0 in (5.49 m) forward, 22 ft 6 in (6.86 m) aft
Depth of hold25 ft 6 in (7.77 m)
Installed power
  • Duncan (Penn) 3428 ihp
  • Gibraltar (Maudslay) 3494 ihp
Propulsion800 nhp
Sail plan
  • Main mast: 67 ft 0 in (20.42 m)ft × 0 ft 40 in (1.02 m)
  • Fore mast: 61 ft 0 in (18.59 m)ft × 0 ft 37 in (0.94 m)
  • Mizzen mast: 51 ft 6 in (15.70 m)ft × 0 ft 27 in (0.69 m)
Speed
  • Duncan 13.338 knots (24.702 km/h) trials Stokes Bay 7 August 1860
  • Gibraltar 12.48 knots (23.11 km/h) (not masted or stored) trials Plymouth 17 April 1861
Complement930
Armament
NotesSource: Lambert Battleships in Transition[1]

The Duncan class of 101-gun two-decker steam line-of-battle ships are considered by Professor Andrew Lambert to have been the "final statement of the British design progress" for steam two-deckers. The class consisted of HMS Duncan and HMS Gibraltar. The Bulwark class had identical hulls. HMS Gibraltar was the last wooden steam line-of-battleship to commission as a private ship in the Royal Navy.[2]

  1. ^ Lambert, "Battleships in Transition", pp 122–124
  2. ^ Lambert, "Battleships in Transition", p124.