Regioni-class cruiser

The design for the {{lang|it|italic=unset|Regioni class}}, sometimes referred to as the {{lang|it|Umbria}} class after the lead ship, was prepared by the naval architect Edoardo Masdea, and it was the first protected cruiser designed in Italy. All previous ships of the type had been designed in Britain, or in the case of the {{sclass|Etna|protected cruiser|4}}, enlarged copies of the British-designed {{ship|Italian cruiser|Giovanni Bausan||2}}. As a first attempt, the ships of the {{lang|it|italic=unset|Regioni}} class proved to be a disappointment, owing to their slow speed and insufficient armor protection.{{sfn|Fraccaroli|pp=348–349}}

File:Regioni-class cruiser plan and profile.jpg

All six ships varied slightly in their dimensions. The ships were {{convert|80|to|83.2|m|sp=us|ftin}} long at the waterline and {{convert|88.25|m|abbr=on|ftin}} long overall. They had a beam of {{convert|12.03|to|12.72|m|abbr=on|ftin}} and a draft of {{convert|4.67|to|5.35|m|abbr=on|ftin}}. The ships displaced {{convert|2245|to|2689|LT|sp=us}} normally and {{convert|2411|to|3110|LT|abbr=on|sp=us}} at full load. The ships were originally designed with a fore and aft sailing rig, though this was quickly removed. Instead, they were fitted with two pole masts equipped with spotting tops. They had a crew of between 213–278.{{sfn|Fraccaroli|p=349}}

The first five ships' propulsion system consisted of a pair of horizontal triple-expansion steam engines, while {{lang|it|Puglia}} was fitted with vertical triple-expansion machinery. The engines drove a pair of screw propellers. Steam was supplied by four cylindrical fire-tube boilers, which were vented into a pair of funnels on the centerline.{{sfn|Fraccaroli|p=349}}

On her speed trials, {{lang|it|Umbria}} reached a maximum of {{convert|19|kn|lk=in}} at {{convert|7400|ihp|lk=in}}. {{lang|it|Lombardia}} made {{convert|18.4|kn|abbr=on}} at {{convert|6010|ihp|abbr=on}}, while {{lang|it|Etruria}} reached {{convert|18.3|kn|abbr=on}} at {{convert|7018|ihp|abbr=on}}. {{lang|it|Liguria}} made {{convert|18.1|kn|abbr=on}} at {{convert|5536|ihp|abbr=on}} and {{lang|it|Elba}}, the slowest member of the class, made {{convert|17.9|kn|abbr=on}} at {{convert|7471|ihp|abbr=on}}{{sfn|Notes on Ships and Torpedo Boats|pp=67–68}} {{lang|it|Puglia}} was by far the fastest, capable of steaming at a speed of {{convert|20|kn|abbr=on}}.{{sfn|Weyl|p=34}} The ships had a cruising radius of about {{convert|2100|nmi|lk=in}} at a speed of {{convert|10|kn}}.{{sfn|Fraccaroli|p=349}}

File:Puglia (Vittoriale degli italiani) - DSC02062.JPG

All six ships were armed with a main battery of four QF 6 inch /40 naval gun L/40 guns mounted singly, with two side by side forward and two side by side aft. A secondary battery of six QF 4.7-inch Gun Mk I–IV L/40 guns were placed between them, with three on each broadside. The ships' light armament varied. All of the ships save {{lang|it|Lombardia}} were equipped with eight QF 6-pounder Hotchkiss guns, which had an additional two of these guns. {{lang|it|Umbria}} was also equipped with one {{cvt|75|mm|0}} gun and nine {{convert|37|mm|abbr=on}} guns, while {{lang|it|Puglia}} had eight of the 37 mm guns and {{lang|it|Elba}} had six of them. {{lang|it|Liguria}} and {{lang|it|Etruria}} only had two 37 mm guns, and {{lang|it|Lombardia}} had none. All six ships had a pair of machine guns and two {{cvt|450|mm|1}} torpedo tubes.{{sfn|Fraccaroli|p=349}}

The ships all had their armament repeatedly revised throughout their careers. By 1905, each ship had had two of the 15 cm guns replaced with two additional 12 cm guns, and their secondary battery was standardized at eight 57 mm guns and eight 37 mm guns, with the exception of {{lang|it|Puglia}}, which had six and two guns, respectively. {{lang|it|Puglia}} had also had her two torpedo tubes removed by this point. In 1914, {{lang|it|Liguria}} had all of her 15 cm guns removed, along with six of the 37 mm guns. Her armament was reduced further in 1917 when she was refitted as a minelayer; at this point, she mounted only six 12 cm guns and two 37 mm guns. Starting in 1915, {{lang|it|Etruria}} and {{lang|it|Lombardia}} were equipped with only six 12 cm guns, six 57 mm guns for {{lang|it|Etruria}} and eight for {{lang|it|Lombardia}}, two 37 mm guns, and their torpedo tubes. At the same time, {{lang|it|Elba}} was rearmed with six 12 cm guns, two 37 cm guns, and one machine gun; she retained her torpedo tubes.{{sfn|Fraccaroli|p=349}}

The first five ships were protected by a {{cvt|50|mm|0}} thick deck, which sloped downward at the sides of the hull to provide a measure of vertical protection against incoming fire. Their conning tower had 50 mm thick sides. {{lang|it|Puglia}} had a deck that was only {{cvt|25|mm|0}} thick, though she had the same thickness of armor on her conning tower.{{sfn|Fraccaroli|p=349}}

File:Italian cruiser Elba.jpg

The ships of the Regioni class served in a variety of roles throughout their careers. Their first decade in service was marked by frequent deployments abroad, interspersed between stints in the main Italian fleet, where they served as scouts for the battleships. In 1895, {{lang|it|Etruria}} and much of the main fleet visited Germany for the opening ceremonies for the Kaiser Wilhelm Canal.{{sfn|Garbett 1895|pp=518–519}} {{lang|it|Lombardia}} was stationed in South America in 1896, when an outbreak of yellow fever killed half of her crew while she was in Rio de Janeiro.{{sfn|Public Health Reports|p=1999}} In 1897, {{lang|it|Umbria}} and {{lang|it|Liguria}} were assigned to the Cruiser Squadron of the main fleet.{{sfn|Robinson|p=186}} {{lang|it|Lombardia}} was deployed to China in 1901, where she replaced {{lang|it|Elba}},{{sfn|Garbett 1901|p=1136}} and to Italian Somaliland in 1903. There, she briefly skirmished with Somali rebels.{{sfn|Reeve|pp=103–105}}

{{lang|it|Elba}} was present in Korea during the Russo-Japanese War, which took place primarily in neighboring Manchuria. She witnessed the Battle of Chemulpo Bay in February 1904 and rescued Russian survivors along with British and French cruisers.{{sfn|May|pp=142–146}} In 1905, Umbria represented Italy at the Lewis and Clark Centennial Exposition in Portland, Oregon.{{sfn|Southard|p=1}} {{lang|it|Lombardia}} was converted into a depot ship for submarines in 1906–1908.{{sfn|Fraccaroli|p=350}} {{lang|it|Etruria}} visited the United States twice for major events, the Jamestown Exposition in 1907 and the Hudson–Fulton Celebration in 1909.{{sfn|The Final Report|p=59}}{{sfn|Kunz|pp=317–318}} {{lang|it|Elba}} and {{lang|it|Liguria}} were modified to operate an observation balloon to assist in spotting naval mines, which could be more easily seen from the air.{{sfn|Cernuschi & O'Hara|p=61}} In December 1910, {{lang|it|Umbria}} was sold to the Haitian Navy and renamed Consul Gostrück, though she sank shortly after the transfer due to her new crew's inexperience. She was sold for scrap in 1913.{{sfn|The Search for Castro|p=1342}}{{sfn|Gardiner & Gray|p=416}}

File:Puglia (Vittoriale degli italiani) - DSC02086.JPG museum]]

All of the remaining ships participated in the Italo-Turkish War of 1911–1912, with the exception of {{lang|it|Lombardia}} which was stationed in the Adriatic. {{lang|it|Etruria}} and {{lang|it|Liguria}} took part in the assault on Benghazi and thereafter provided gunfire support to Italian forces in North Africa. {{lang|it|Puglia}} was stationed in East Africa for the duration of the war, and frequently bombarded Ottoman ports. These included a diversionary attack that helped the cruiser {{ship|Italian cruiser|Piemonte||2}} and two destroyers sink or force aground a flotilla of seven Ottoman gunboats in the Battle of Kunfuda Bay. In January 1912, {{lang|it|Liguria}} and {{lang|it|Elba}} joined the fleet in the Red Sea, where they imposed a blockade on Ottoman ports in the region, coupled with frequent bombardments of Ottoman positions.{{sfn|Beehler|pp=9–10, 27–29, 51–52, 60, 70, 81, 84}}

In 1914 {{lang|it|Elba}} was converted into the first dedicated seaplane tender in the Italian fleet. She was nevertheless too small to be of real use, and she remained in service for only two years.{{sfn|Cernuschi & O'Hara|pp=62–63}} {{lang|it|Puglia}} was the only ship of the class to take an active role in the First World War; in 1915, while patrolling off Durazzo she briefly encountered the Austro-Hungarian cruiser {{SMS|Novara|1912|6}}, which retreated before either ship could open fire.{{sfn|Halpern|p=158}} She covered the withdrawal of elements of the Serbian Army from Durazzo and shelled the pursuing Austro-Hungarian Army.{{sfn|Klein|p=389}} {{lang|it|Etruria}} was deliberately blown up in Livorno on 13 August 1918 to fool Austria-Hungary into believing its espionage network, which had been thoroughly compromised, was still operational.{{sfn|O'Hara, Dickson, & Worth|p=187}}

After the war, the surviving ships discarded as the navy reduced its strength to peacetime levels. {{lang|it|Elba}} was sold for scrapping in January 1920, followed by her sister {{lang|it|Lombardia}} in July.{{sfn|Fraccaroli|p=349}} That month, {{lang|it|Puglia}} became involved in the civil unrest in Split, and the ship's captain and another sailor were murdered by a group of Croat nationalists.{{sfn|The Contemporary Review|p=514}} {{lang|it|Liguria}} was sold in May 1921 and broken up. The Navy sold '{{lang|it|Puglia}} in March 1923,{{sfn|Fraccaroli|p=349}} but while she was being dismantled Benito Mussolini donated her bow section to the {{lang|it|Vittoriale degli italiani}} museum.{{sfn|Domenico|p=54}}

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{{Commons category}}

• [https://www.marina.difesa.it/noi-siamo-la-marina/mezzi/mezzi-storici/Pagine/LMNO/lombardia.aspx Classe Regioni] Marina Militare website

{{Portal bar|Italy|Engineering}}

{{Regioni class cruiser}}

{{Italian protected cruisers}}

{{WWI Italian ships}}

Category:Cruiser classes

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