Ætna, 1855
Type: Floating battery ; Armament 14
Launched : 3 May 1855 ; Disposal date or year : 1855
BM: 1469 tons
Propulsion: Screw
Machinery notes: 200 h.p.
Notes:

Iron hulled floating battery.

3 May 1855 caught fire on stocks and on the 4th is reported to be far from being put out due to the difficulty the firemen are experiencing finding the seat of the fire.

Mr. J. Scott Russell, ship builder, later reported that no other ship, excepting the �tna, was destroyed in the fire, although the two vessels on either side were scorched by the flames, but it should be possible to remedy the damage in a week or two.