French ironclad Alma
| History | |
|---|---|
 France
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| Name: | Alma |
| Namesake: | Battle of Alma |
| Builder: | Lorient |
| Laid down: | 1 October 1865 |
| Launched: | 26 November 1867 |
| Commissioned: | 1870 |
| Fate: | Sold May 1893 |
| General characteristics | |
| Class and type: | Alma-class ironclad |
| Displacement: | 3,778 metric tons (3,718 long tons) |
| Length: | 68.84 m (225 ft 10 in) |
| Beam: | 14.04 m (46 ft 1 in) |
| Draft: | 6.53 m (21.4 ft) (mean) |
| Installed power: | 1,896 ihp (1,414 kW) |
| Propulsion: | 1 shaft, steam engine |
| Sail plan: | Barque-rig |
| Speed: | 11 knots (20 km/h; 13 mph) |
| Range: | 1,360 nautical miles (2,520 km; 1,570 mi) at 10 knots (19 km/h; 12 mph) |
| Complement: | 316 |
| Armament: |
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| Armor: | |
The French ironclad Alma was a wooden-hulled armored corvette built for the French Navy in the late 1860s. The lead ship of her class, she was named after the 1854 Battle of Alma of the Crimean War. The ship spent her early career on the China Station and later supported the French occupation of Tunisia in 1881. She was condemned in 1886, but was not sold until 1893.
The Alma-class ironclads were designed as improved versions of the armored corvette Belliqueuse suitable for foreign deployments. Unlike their predecessor the Alma-class ships were true central battery ironclads as they were fitted with armored transverse bulkheads. Like most ironclads of her era she was equipped with a metal-reinforced ram.
Alma measured 68.84 meters (225 ft 10 in) between perpendiculars, with a beam of 14.04 meters (46 ft 1 in). She had a mean draft of 6.53 meters (21 ft 5 in) and displaced 3,778 metric tons (3,718 long tons).
The ship had a single Mazeline horizontal return connecting-rod steam engine driving a single propeller. Her engine was powered by four oval boilers. On sea trials the engine produced 1,896 indicated horsepower (1,414 kW) and the ship reached 11.3 knots (20.9 km/h; 13.0 mph).Alma carried 250 metric tons (250 long tons) of coal which allowed the ship to steam for 1,360 nautical miles (2,520 km; 1,570 mi) at a speed of 10 knots (19 km/h; 12 mph). She was barque-rigged and had a sail area of 1,454 square meters (15,650 sq ft).
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