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Leone was the lead ship of her class of three destroyers built for the Regia Marina (Royal Italian Navy) in the early 1920s.

History
Kingdom of Italy
Name	Leone
Namesake	Lion
Builder	Gio. Ansaldo & C., Sestri Ponente
Laid down	23 November 1921
Launched	1 October 1923
Completed	1 July 1924
Fate	Foundered, 1 April 1941
General characteristics (as built)
Class and type	Leone-class destroyer
Displacement	2,195 long tons (2,230 t) (normal) 2,289 long tons (2,326 t) (full load)
Length	113.41 m (372 ft 1 in) (o/a)
Beam	10.36 m (34 ft)
Draught	3.1 m (10 ft 2 in) (mean)
Installed power	4 Yarrow boilers 42,000 hp (31,000 kW)
Propulsion	2 shafts; 2 geared steam turbines
Speed	33 knots (61 km/h; 38 mph)
Range	2,000 nmi (3,700 km; 2,300 mi) at 15 knots (28 km/h; 17 mph)
Complement	10 officers and 194 enlisted men
Armament	4 × twin 120 mm (4.7 in) guns 2 × single 76 mm (3 in) AA guns 2 × triple 450 mm (17.7 in) torpedo tubes 60 mines

Design and description

The ships were designed as scout cruisers (esploratori), essentially enlarged versions of contemporary destroyers. They were initially ordered in 1917, but postponed due to steel shortages, and re-ordered in 1920.[1] They had an overall length of 113.41 meters (372 ft), a beam of 10.36 meters (34 ft) and a mean draft of 3.1 meters (10 ft 2 in).[2] They displaced 2,195 long tons (2,230 t) at standard load, and 2,289 long tons (2,330 t) at deep load. Their complement was 10 officers and 194 enlisted men.[1]

The Leones were powered by two Parsons geared steam turbines, each driving one propeller shaft using steam supplied by four Yarrow boilers. The turbines were rated at 42,000 shaft horsepower (31,000 kW) for a speed of 33 knots (61 km/h; 38 mph) in service, although Leone reached 33.7 knots (62.4 km/h; 38.8 mph) from 45,667 shp (34,054 kW) during her sea trials. The ships carried enough fuel oil to give them a range of 2,000 nautical miles (3,700 km; 2,300 mi) at a speed of 15 knots (28 km/h; 17 mph).[1]

Their main battery consisted of eight 120-millimeter (4.7 in) guns in four twin-gun turrets, one each fore and aft of the superstructure and the remaining turrets positioned between the funnels and the torpedo tube mounts amidships.[3] Anti-aircraft (AA) defense for the Leone-class ships was provided by a pair of 76 mm (3 in) AA guns in single mounts amidships. They were equipped with six 450-millimeter (17.7 in) torpedo tubes in two triple mounts. The Leones could also carry 60 mines.[1]

Citations

Bibliography

• Brescia, Maurizio (2012). Mussolini's Navy: A Reference Guide to the Regina Marina 1930–45. Annapolis, Maryland: Naval Institute Press. ISBN 978-1-59114-544-8.
• Fraccaroli, Aldo (1968). Italian Warships of World War II. Shepperton, UK: Ian Allan. ISBN 0-7110-0002-6.
• Gray, Randal, ed. (1985). Conway's All the World's Fighting Ships, 1906–1921. Annapolis, Maryland: Naval Institute Press. ISBN 978-0-87021-907-8.
• McMurtrie, Francis E., ed. (1937). Jane's Fighting Ships 1937. London: Sampson Low. OCLC 927896922.
• Rohwer, Jürgen (2005). Chronology of the War at Sea 1939–1945: The Naval History of World War Two (Third Revised ed.). Annapolis, Maryland: Naval Institute Press. ISBN 1-59114-119-2.
• Whitley, M. J. (1988). Destroyers of World War 2: An International Encyclopedia. Annapolis, Maryland: Naval Institute Press. ISBN 1-85409-521-8.

External links

• Leone Marina Militare website

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