Italian ironclad Re di Portogallo
Re di Portogallo or her sister Re d'Italia
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| History | |
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 Italy
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| Name: | Re di Portogallo |
| Namesake: | Luís I of Portugal |
| Builder: | William H. Webb, New York City |
| Laid down: | December 1861 |
| Launched: | 29 August 1863 |
| Completed: | 23 August 1864 |
| Struck: | 31 March 1875 |
| Fate: | Broken up for scrap |
| General characteristics | |
| Class and type: | Re d'Italia-class armored frigate |
| Displacement: | 5,610 long tons (5,700 t) |
| Length: | 99.61 m (326 ft 10 in) |
| Beam: | 16.76 m (55 ft 0 in) |
| Draft: | 7.18 m (23 ft 7 in) |
| Installed power: | |
| Propulsion: | 1 shaft, 1 single-expansion steam engine |
| Sail plan: | Barque-rigged |
| Speed: | 10.6 to 10.8 knots (19.6 to 20.0 km/h; 12.2 to 12.4 mph) |
| Range: | 1,800 nmi (3,300 km; 2,100 mi) at 10.5 knots (19.4 km/h; 12.1 mph) |
| Complement: | 552 |
| Armament: |
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| Armor: | Belt: 4.75 in (121 mm) |
Re di Portogallo was an ironclad warship built for the Italian Regia Marina in the 1860s, the second and final member of the Re d'Italia class. She was laid down at the William H. Webb Shipyard in New York in December 1861, was launched in August 1863, and was completed a year later in August 1864; the two Re d'Italia-class ships were the only Italian ironclads built in the United States. The ships were broadside ironclads, armed with a battery of six 72-pounder guns and thirty-two 164 mm (6.5 in) guns.
Re di Portogallo saw action at the Battle of Lissa during the Third Italian War of Independence in 1866. She engaged several Austrian wooden vessels in the melee, including ship of the line Kaiser, which rammed Re di Portogallo but inflicted no significant damage. The ship's career after the war was very limited; in 1871, she was converted into a training ship. By 1875, her wooden hull was found to have deteriorated badly, and so she was broken up for scrap.
Re di Portogallo was 99.61 meters (326.8 ft) long overall; she had a beam of 16.76 m (55.0 ft) and an average draft of 7.18 m (23.6 ft). She displaced 5,610 metric tons (5,520 long tons; 6,180 short tons) normally and up to 6,082 t (5,986 long tons; 6,704 short tons) at full load. Her hull was built from green wood. She had a crew of 552. The ship's propulsion system consisted of one single-expansion steam engine that drove a single screw propeller, with steam supplied by four coal-fired, rectangular boilers. Her engine produced a top speed of 10.6 to 10.8 knots (19.6 to 20.0 km/h; 12.2 to 12.4 mph) from 1,812 to 1,845 indicated horsepower (1,351 to 1,376 kW). She could steam for about 1,800 nautical miles (3,300 km; 2,100 mi) at a speed of 10.5 knots (19.4 km/h; 12.1 mph). For long-distance travel, Re di Portogallo was fitted with three masts and was barque-rigged.
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