| Name | No | Yard No | Builder | Laid down | Launched | Comp | Fate |
| Embuscade | Lucien Arman, Bordeaux | 25.2.1862 | 18.11.1865 | 1/1866 | stricken 1.1885 | ||
| Imprenable | Lucien Arman, Bordeaux | 25.2.1862 | 17.12.1865 | 2/1868 | stricken 3.1882 | ||
| Refuge | Lucien Arman, Bordeaux | 25.2.1862 | 1.5.1866 | 10/1866 | stricken 7.1884 | ||
| Protectrice | Lucien Arman, Bordeaux | 25.2.1862 | 8.12.1866 | 1/1867 | stricken 8.1889 |
|
Displacement normal, t |
Imprenable: 1600 Refuge: 1449 others: 1555 |
|
Displacement full, t |
|
|
Length, m |
39.7 deck |
|
Breadth, m |
15.8 |
|
Draught, m |
3.27 - 4.00 max |
|
No of shafts |
2 |
|
Machinery |
2 2-cyl HP HSE, 4 boilers |
|
Power, h. p. |
409 |
|
Max speed, kts |
7.4 |
|
Fuel, t |
coal 80 |
|
Endurance, nm(kts) |
|
|
Armour, mm |
wrought iron; belt: 140, battery: 110 |
|
Armament |
4 x 1 - 165/18 M1864-66 MLR, 4 x 1 - 165/17 M1860 MLR |
|
Complement |
180 |
Project history: This class of iron-hulled floating batteries were shorter and had more beam than the Arrogante, and differed also in that the battery was continued to the ends. There were 2 gunports at both bow and stern and 6 on either beam with a battery height of 1.4m.
Ship protection: Sides were protected by 140mm iron with 400mm wood backing on 10mm iron plating at wl, battery had 110mm armour on 400mm wood on 10mm iron plating.
Modernizations: 1870, Arrogante: - 4 x 1 - 165/18, 6 x 1 - 165/17; + 3 x 1 - 240/18 M1864 MLR, 4 x 1 - 122/15 M1858 MLR
1870, Implacable, Opiniâtre: - 4 x 1 - 165/18, 4 x 1 - 165/17; + 4 x 1 - 194/19 M1864 MLR
1871, Implacable: - 3 x 1 - 194/19, 1 x 1 - 165/17; + 2 x 1 - 240/18 M1870 BLR, 1 x 1 - 223/11 shell MLR, 2 x 1 - 194/20 M1870 BLR, 2 x 1 - 165/18 M1864 MLR, 6 x 1 - 139/21 M1870 BLR, 1 x 1 - 121/15 MLR
Naval service: Protectrice rammed a pier and sank in 1871, later salvaged and repaired.
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