Formidabile-class ironclad

Terribile in Naples in 1869
Class overview
NameFormidabile class
BuildersSociété Nouvelle des Forges et Chantiers de la Méditerranée
Operators Regia Marina
Preceded byNone
Succeeded byPrincipe di Carignano class
Built1860–1862
In commission1861–1904
Completed2
Retired2
General characteristics [a]
TypeIronclad warship
Displacement
Length65.8 m (215 ft 11 in)
Beam14.44 m (47 ft 5 in)
Draft5.45 m (17 ft 11 in)
Installed power
Propulsion
Speed10 knots (19 km/h; 12 mph)
Range1,300 nmi (2,400 km) at 10 kn (19 km/h; 12 mph)
Complement371
Armament
  • 4 × 203 mm (8 in) guns
  • 16 × 164 mm (6 in) guns
ArmorBelt armor: 109 mm (4.3 in)

The Formidabile class was a pair of ironclad warships built for the Italian Regia Marina (Royal Navy) in the 1860s. The class comprised two ships, Formidabile and Terribile. Initially ordered for the Regia Marina Sarda (Royal Sardinian Navy), by the time they were completed the Kingdom of Sardinia had unified the rest of the Italian states and created the Regia Marina. They were the first ironclads built for the Italian fleet. Wooden-hulled vessels plated with 4.3 inches (109 mm) of wrought iron, they were armed with a battery of twenty guns in a broadside arrangement.

Both vessels were involved in the operations off Lissa in July 1866, but neither took part in the Battle of Lissa on 20 July. Formidabile had been damaged by Austrian coastal fortifications the day before, and had withdrawn for repairs; Terribile was ready for action, but had been preparing to attack Lissa and was too far south to take an active role in the battle. Both ships saw minimal use in the 1870s and 1880s, until both were withdrawn from service for use as training ships. Formidabile and Terribile served in this capacity until 1903 and 1904, respectively, when they were sold and broken up for scrap.
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