The Italian cruiser San Marco was a San Giorgio-classarmoured cruiser built for the Royal Italian Navy (Regia Marina) in the first decade of the 20th century. She was the first large Italian ship fitted with steam turbines and the first turbine-powered ship in any navy to have four propeller shafts.[1] The ship participated in the Italo-Turkish War of 1911–1912, during which time she supported the occupations of Benghazi and Derna, the island of Rhodes, and bombarded the fortifications defending the entrance to the Dardanelles. During World War I, San Marco's activities were limited by the threat of Austro-Hungarian submarines, although the ship did participate in the bombardment of Durazzo, Albania in late 1918. She played a minor role in the Corfu incident in 1923 and was converted into a target ship in the first half of the 1930s. San Marco was captured by the Germans when they occupied northern Italy in 1943 and was found sunk at the end of the war. The ship was broken up and scrapped in 1949.
The ships of the San Giorgio class were designed as improved versions of the Pisa-class design. San Marco's design featured several new innovations that differentiated her from her sister shipSan Giorgio. San Marco was given the first steam turbines fitted in a large Italian ship and she was the first turbine-powered ship in any navy to have four shafts, the first with a gyroscopic compass, the first with antiroll tanks, and the first not to use wood in any way.[2]
San Marco had a length between perpendiculars of 131.04 metres (429ft 11in) and an overall length of 140.89 metres (462ft 3in). She had a beam of 21.03 metres (69ft 0in) and a draught of 7.76 metres (25ft 6in). The ship displaced 10,969 tonnes (10,796 long tons) at normal load, and 11,900 tonnes (11,700 long tons) at deep load. Her complement was 32 officers and 666 to 673 enlisted men.[3]
The ship was powered by four steam turbines, each driving one propeller shaft using steam supplied by 14 Babcock & Wilcox boilers. Designed for a maximum output of 23,000 shaft horsepower (17,000kW) and a speed of 23 knots (43km/h; 26mph),[4]San Marco handily exceeded this, reaching a speed of 23.75 knots (43.99km/h; 27.33mph) during her sea trials from 23,030ihp (17,170kW).[5] The ship was also required to be a half a knot faster than San Giorgio, a requirement she easily surpassed.[6]San Marco had a cruising range of 4,800 nautical miles (8,900km; 5,500mi) at a speed of 10 knots (19km/h; 12mph).[5]
The main armament of the San Giorgio-class ships consisted of four Cannone da 254/45 A Modello 1908 guns in twin-gun turrets fore and aft of the superstructure. The ships mounted eight Cannone da 190/45 A Modello 1908 in four twin-gun turrets, two in each side amidships, as their secondary armament. For defense against torpedo boats, they carried 18 quick-firing (QF) 40-caliber 76mm (3.0in) guns. Eight of these were mounted in embrasures in the sides of the hull and the rest in the superstructure.[5] The ships were also fitted with a pair of 40-caliber QF 47mm (1.9in) guns. The San Giorgios were also equipped with three submerged 450mm (17.7in)torpedo tubes. During World War I, eight of the 76mm guns were replaced by six 76mm anti-aircraft guns[5] and one torpedo tube was removed.[4]
The ships were protected by an armoured belt that was 200mm (7.9in) thick amidships and reduced to 80mm (3.1in) at the bow and stern.[4] The armoured deck was 50mm (2.0in) thick and the conning tower armour was 254mm thick. The 254mm gun turrets were protected by 200mm of armour while the 190mm turrets had 160mm (6.3in).[5]
When the Italo-Turkish War of 1911–1912 began on 29 September 1911, San Marco was not initially assigned to the 2nd Division of the 1st Squadron of the Mediterranean Fleet. She was assigned to the Division on 1 October[8] and later escorted several Italian transports that arrived off Derna, Libya on 15 October together with the battleshipNapoli and the armoured cruisers Pisa and Amalfi. After negotiations for a surrender of the town fell apart, Pisa shelled the barracks and a fort. There was no return fire from Derna, so a boat with offers of a truce was sent in. When it was greeted by a volley of rifle fire, San Marco and the other armoured cruisers opened fire on the town with their 190mm guns and, according to a contemporary account, "completely destroyed" the town in 30 minutes time.[9] A landing party was unable to reach the shore because of rough seas and gunfire from the shore. San Marco and her consorts then shelled the beach for two hours. Weather conditions prevented a landing until the 18th, when 1,500 men took possession of Derna. The ship then supported Italian troops at Benghazi in December.[10] In mid-April 1912 the Italian fleet sortied into the eastern Aegean Sea with Pisa and Amalfi leading in an attempt to lure out the Ottoman fleet. When that failed, the Italians bombarded the fortifications defending the Dardanelles to little effect before the main body departed for Italy on the 19th.[11] In May San Marco provided support for the occupation of Rhodes and finally returned home on 20 September.[12]
San Marco at Brindisi on 13 December 1916
She was used for experiments evaluating shipboard operation of seaplanes before the start of World War I.[13] The ship was based at Brindisi when Italy declared war on the Central Powers on 23 May 1915. That night, the Austro-Hungarian Navy bombarded the Italian coast in an attempt to disrupt the Italian mobilization. Of the many targets, Ancona was hardest hit, with disruptions to the town's gas, electric, and telephone service; the city's stockpiles of coal and oil were left in flames. All of the Austrian ships safely returned to port, putting pressure on the Regia Marina to stop the attacks. When the Austrians resumed bombardments on the Italian coast in mid-June, Admiral Paolo Thaon di Revel responded by sending San Marco and the other armoured cruisers at Brindisi—the navy's newest—to Venice to supplement the older ships already there.[14] Shortly after their arrival at Venice, Amalfi was sunk by a submarine on 7 July and her loss severely restricted the activities of the other ships based at Venice.[15]San Marco later participated in the bombardment of Durazzo (now known as Durrës) on 2 October 1918 which sank one merchantman and damaged two others.[16]
On 21 September 1923, the ship transported to Taranto the bodies of the members of the Boundary Commission killed on Corfu on 27 August (their deaths sparked the Corfu incident).[17] On 1 October, San Marco ferried the last occupation troops from Corfu to Brindisi.[18] On 16 March 1924, she saluted King Victor Emmanuel III when he arrived in Fiume to attend the ceremony commemorating the city's annexation by Italy.[19]San Marco escorted Crown PrinceUmberto, travelling aboard San Giorgio, during his South American tour in July–September 1924.[20][21]
San Marco was disarmed and converted into a radio-controlled (by the elderly destroyerAudace) target ship in 1931–1935. Her old boilers were replaced by four oil-burning Thornycroft-type boilers which reduced her maximum speed to 18 knots (33km/h; 21mph) from 13,000 shaft horsepower (9,700kW). During a naval review for Adolf Hitler in the Bay of Naples on 5 May 1938, the ship was used as a target by the heavy cruisersFiume and Zara.[22] She was captured by the Germans when they occupied La Spezia on 9 September 1943; the ship was found at the end of the war sunk in the harbor there. San Marco was formally stricken from the Navy List on 27 February 1947 and broken up in 1949.[23]
Beehler, William Henry (1913). The History of the Italian-Turkish War, Sept. 29, 1911 to Oct. 18, 1912. Annapolis, Maryland: Advertiser-Republican. OCLC63576798.
Fraccaroli, Aldo (1970). Italian Warships of World War I. London: Ian Allan. ISBN0-7110-0105-7.
Stephenson, Charles (2014). A Box of Sand: The Italo-Ottoman War 1911–1912: The First Land, Sea and Air War. Ticehurst, UK: Tattered Flag Press. ISBN978-0-9576892-7-5.
The Giuseppe Garibaldi-class cruisers were a class of ten armoured cruisers built in Italy in the 1890s and the first decade of the 20th century. The ships were built for both the Royal Italian Navy and for export. With the class being named for Italian unifier and nationalist Giuseppe Garibaldi.
Amalfi was a Pisa-class armored cruiser of the Italian Royal Navy built in the first decade of the 20th century. During the Italo-Turkish War of 1911–1912, Amalfi operated with the Italian fleet off Tripoli in September 1911 and participated in the amphibious landings at Derna in October. In April 1912, Amalfi and sister ship Pisa led the way in attacks on Turkish forts in the Dardanelles. After the rest of the fleet retired later in the month, the pair of armored cruisers remained in the area to attack Turkish communications facilities. After the Treaty of Lausanne signed in October 1912 ended the war, Amalfi escorted the Italian king and queen on the royal yacht to Germany and Sweden during a 1913 visit.
Ammiraglio di Saint Bon was a pre-dreadnought battleship of the Regia Marina built during the 1890s. She was laid down in July 1893, launched in April 1897, and completed in May 1901. She was the lead ship of her class, and had one sister ship, Emanuele Filiberto. The ship was armed with a main battery of four 254 mm (10 in) guns and was capable of a top speed of 18 knots.
The Pisa class consisted of three armored cruisers built in Italy in the first decade of the 20th century. Two of these were for the Royal Italian Navy and the third was sold to the Royal Hellenic Navy and named Georgios Averof. This ship served as the Greek flagship for the bulk of her active career and participated in the Balkan Wars of 1912–1913, fighting in two battles against the Ottoman Navy. She played a minor role in World War II after escaping from Greece during the German invasion in early 1941. Influenced by communist agitators, her crew mutinied in 1944, but it was suppressed without any bloodshed. Georgios Averof returned to Greece after the German evacuation in late 1944 and became a museum ship in 1952. She is the only surviving armored cruiser in the world.
Francesco Ferruccio was a Giuseppe Garibaldi-class armored cruiser built for the Royal Italian Navy in the first decade of the 20th century. The ship made several deployments to the Eastern Mediterranean and the Levant during her career. At the beginning of the Italo-Turkish War of 1911–12 she bombarded Tripoli and then Beirut in early 1912 before being transferred to Libya. During World War I, Francesco Ferruccio's activities were limited by the threat of Austro-Hungarian submarines and she became a training ship in 1919. The ship was struck from the naval register in 1930 and subsequently scrapped.
Varese was a Giuseppe Garibaldi-class armored cruiser built for the Royal Italian Navy in the 1890s. The ship made several deployments to the Eastern Mediterranean and the Levant before the start of the Italo-Turkish War of 1911–12. She supported ground forces in the occupations of Tripoli and Homs in Libya. Varese may have bombarded Beirut and did bombard the defenses of the Dardanelles during the war. She also provided naval gunfire support for the Italian Army in Libya. During World War I, the ship's activities were limited by the threat of Austro-Hungarian submarines and Varese became a training ship in 1920. She was struck from the naval register in 1923 and subsequently scrapped.
Sardegna was the third of three Re Umberto-class ironclad battleships built for the Italian Regia Marina. The ship, named for the island of Sardinia, was laid down in La Spezia in October 1885, launched in September 1890, and completed in February 1895. She was armed with a main battery of four 340 mm (13.5 in) guns and had a top speed of 20.3 knots —albeit at the cost of armor protection—and she was one of the first warships to be equipped with a wireless telegraph.
Regina Elena was the lead ship of her class of pre-dreadnought battleships built for the Italian Regia Marina. The ship was built by the La Spezia shipyard between 1901 and 1907, and was armed with a main battery of two 305 mm (12 in) guns and twelve 203 mm (8 in) guns. She was quite fast for the period, with a top speed of nearly 21 knots. Regina Elena was active in both the Italo-Turkish War with the Ottoman Empire in 1911–1912, where she participated in the Italian conquest of Cyrenaica, and World War I in 1915–1918, where she saw no action due to the threat of submarines in the narrow confines of the Adriatic Sea. She was retained for a few years after the war, but was ultimately stricken in February 1923 and broken up for scrap.
Vittorio Emanuele was an Italian pre-dreadnought battleship, laid down in 1901, launched in 1904 and completed in 1908. She was the second member of the Regina Elena class, which included three other vessels: Regina Elena, Napoli, and Roma. Vittorio Emmanuele was armed with a main battery of two 305 mm (12 in) guns and twelve 203 mm (8 in) guns. She was quite fast for the period, with a top speed of nearly 21 knots.
Roma was an Italian pre-dreadnought battleship, laid down in 1903, launched in 1907 and completed in 1908. She was the third member of the Regina Elena class, which included three other vessels: Regina Elena, Napoli, and Vittorio Emanuele. Roma was armed with a main battery of two 305 mm (12 in) guns and twelve 203 mm (8 in) guns. She was quite fast for the period, with a top speed of nearly 21 knots.
Napoli was a Regina Elena-class pre-dreadnought battleship built for the Italian Regia Marina in 1903–08. She was the last member of the four-ship class, which included the lead ship Regina Elena, Vittorio Emanuele, and Roma. Napoli was armed with a main battery of two 305 mm (12 in) and twelve 203 Mm (126,138 mi) guns, and was capable of a top speed of 21 knots.
The Italian cruiser San Giorgio was the name ship of her class of two armored cruisers built for the Royal Italian Navy in the first decade of the 20th century. Commissioned in 1910, the ship was badly damaged when she ran aground before the start of the Italo-Turkish War in 1911, although she was repaired before its end. During World War I, San Giorgio's activities were limited by the threat of Austro-Hungarian submarines, although the ship did participate in the bombardment of Durazzo, Albania, in late 1918.
The San Giorgio class consisted of two armored cruisers built for the Royal Italian Navy in the first decade of the 20th century. The second ship, San Marco, was used to evaluate recently invented steam turbines in a large ship and incorporated a number of other technological advances. The ships participated in the Italo-Turkish War of 1911–1912, although San Giorgio was under repair for most of the war. San Marco supported ground forces in Libya with naval gunfire and helped them to occupy towns in Libya and islands in the Dodecanese. During World War I, the ships' activities were limited by the threat of Austro-Hungarian submarines, although they did bombard Durazzo, Albania in 1918.
Piemonte was a unique protected cruiser built for the Italian Regia Marina in the 1880s by the British shipyard Armstrong Whitworth. She was the first major warship armed entirely with quick-firing (QF) guns and she was also the fastest cruiser in the world upon her completion in 1889. Piemonte was frequently deployed overseas, including a lengthy tour in East Asian waters from 1901 to 1904. She saw significant action during the Italo-Turkish War in 1911–1912 in the Red Sea, where she frequently bombarded Ottoman ports. During the Battle of Kunfuda Bay in January 1912, she and two destroyers sank four Ottoman gunboats and forced ashore three more. Piemonte participated in World War I but she saw little action during the conflict. She remained in service until 1920, when she was scrapped.
Agordat was a torpedo cruiser of the Italian Regia Marina built in the late 1890s. She was the lead ship of the Agordat class, which had one other member, Coatit. The ship, which was armed with twelve 76 mm (3 in) guns and two 450 mm (17.7 in) torpedo tubes, was too slow and short-ranged to be able to scout effectively for the fleet, so her career was limited. She saw action during the Italo-Turkish War in 1911–1912, where she provided gunfire support to Italian troops in North Africa. She assisted in the occupation of Constantinople in the aftermath of World War I, and in 1919 she was reclassified as a gunboat. In January 1923, Agordat was sold for scrapping.
Coatit was a torpedo cruiser of the Italian Regia Marina built in the late 1890s. She was the second and final member of the Agordat class. The ship, which was armed with twelve 76 mm (3 in) guns and two 450 mm (17.7 in) torpedo tubes, was too slow and short-ranged to be able to scout effectively for the fleet, so her career was limited. She saw action during the Italo-Turkish War in 1911–1912, where she provided gunfire support to Italian troops in North Africa. She also caused a minor diplomatic incident from an attack on retreating Ottoman soldiers in Anatolia. Coatit was part of an international fleet sent to Constantinople when the city appeared to be at risk of falling to the Bulgarian Army during the First Balkan War. In 1919, she was converted into a minelayer and was sold for scrap in 1920.
The Italian cruiser Vettor Pisani was the name ship of her class of two armored cruisers built for the Royal Italian Navy in the 1890s. She often served as a flagship during her career and frequently served overseas. On one of these deployments, the ship received a radio message from Peking, one of the first long-range radio transmissions to a ship. Vettor Pisani participated in the Boxer Rebellion of 1900 and the Italo-Turkish War of 1911–12, during which her admiral nearly caused a diplomatic incident with the Austro-Hungarian Empire. During World War I, her activities were limited by the threat of Austro-Hungarian submarines and she was converted into a repair ship in 1916. Vettor Pisani was stricken from the Navy List in 1920 and scrapped later that year.
The Italian cruiser Pisa was the name ship of her class of two armored cruisers built for the Royal Italian Navy in the first decade of the 20th century. The ship participated in the Italo-Turkish War of 1911–1912, during which she supported the occupations of Tobruk, Libya and several islands in the Dodecanese and bombarded the fortifications defending the entrance to the Dardanelles. During World War I, Pisa's activities were limited by the threat of Austro-Hungarian submarines, although the ship did participate in the bombardment of Durazzo, Albania in late 1918. After the war she became a training ship and was stricken from the Navy List in 1937 before being scrapped.
Urania was a torpedo cruiser of the Partenope class built for the Italian Regia Marina in the 1880s. She was built by the Cantieri navali Odero shipyard; her keel was laid in February 1889, she was launched in June 1891, and was commissioned in July 1893. Her main armament were her six torpedo tubes, which were supported by a battery of ten small-caliber guns. Urania spent most of her career in the main Italian fleet, where she was primarily occupied with training exercises. She was still in service at the outbreak of the Italo-Turkish War in September 1911, but she did not take part in any operations. Instead, she remained in Italian waters and was broken up for scrap in January 1912.
Tripoli was the first modern torpedo cruiser built for the Italian Regia Marina. She was built by the Regio Cantiere di Castellammare di Stabia shipyard in 1885–86. The only vessel of her class, she provided the basis for the Goito and Partenope classes that followed. She was armed with five 14-inch (356 mm) torpedo tubes and a battery of light guns, and was capable of a top speed of 17.5 knots. Tripoli spent her career in the main Italian fleet, where she was occupied primarily with peacetime training exercises. She was modernized several times throughout her career, and in 1910, was converted into a minelayer, a role she served in for another thirteen years, including during World War I. She was the longest serving torpedo cruiser in the Italian fleet, with over 36 years in service by the time she was discarded in March 1923.
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