NAVYPEDIA

Ships

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

Technical data

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.