NAVYPEDIA

Photo

Duncan (left) and Hydra (right)

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
Gibraltar			Devonport DYd	10.1858	16.8.1860	28.8.1860	TS 1872
Duncan			Portsmouth DYd	2.5.1857	13.2.1859	5.1.1860	Coast Guard 6.1867

Technical data

Displacement normal, t	5724
Displacement full, t	5950
Length, m	76.8 pp
Breadth, m	17.7
Draught, m	7.77 hold depth
No of shafts	1
Machinery	Duncan: sails + boilers, 1 2-cyl HSE trunk Gibraltar: sails + boilers, 1 2-cyl HSE
Power, h. p.	Duncan: 3428ihp Gibraltar: 3494ihp
Max speed, kts	Duncan: 13.2 Gibraltar: 10.9
Fuel, t	coal
Endurance, nm(kts)
Armament	1 x 1 - 206/15 68pdr 95cwt shell SBML, 36 x 1 - 204/13 8'' 65cwt shell SBML, 36 x 1 - 163/18 32pdr 56cwt SBML, 28 x 1 - 161/15 32pdr 42cwt SBML
Complement	930

Graphics

Project history

New 101-gun ships. Surveyor's Department design of 1857. Longer and broader version of Conqureror class, with the same armament. Both re-classed as 99-gun in 1861, to 85-gun in 1862 and to 81-gun in 1863. In 1867 there was a design proposed by Reed to fit Duncan as a breastwork turret ironclad, but this was cancelled for financial reasons. Wooden hull.

One more ship of class Robust was ordered in 1857 but in 1858 re-ordered as 90-gun ship.

Modernizations

1862, both: - 4 x 1 - 163/18, 28 x 1 - 161/15; + 1 x 1 - 183/14 110pdr 82cwt BL, 4 x 1 - 160/15 70pdr 42cwt BL

1863, both: - 4 x 1 - 160/15

Naval service

No significant events.