Pisa in February 1932, showing the foremast added in the 1920s | |
Class overview | |
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Name | Pisa |
Operators | |
Preceded by | Giuseppe Garibaldi class |
Succeeded by | San Giorgio class |
Subclasses | Georgios Averof |
Built | 1905–1909 |
In commission | 1909–1952 |
Completed | 3 |
Lost | 1 |
Scrapped | 1 |
Preserved | 1 |
General characteristics | |
Type | Armored cruiser |
Displacement | 9,832 t (9,677 long tons) |
Length | 140.5 m (460 ft 11 in) (o/a) |
Beam | 21 m (68 ft 11 in) |
Draft | 6.9–7.1 m (22 ft 8 in – 23 ft 4 in) |
Installed power |
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Propulsion | 2 shafts, 2 vertical triple-expansion steam engines |
Speed | 23 knots (43 km/h; 26 mph) |
Range | 2,500 nmi (4,600 km; 2,900 mi) at 12 knots (22 km/h; 14 mph) |
Complement | 32 officers, 652–55 enlisted men |
Armament |
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Armor |
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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 ( Regia Marina ) 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. [1]
The two Italian ships participated in the Italo-Turkish War of 1911–1912 during which they supported ground forces in Libya with naval gunfire and helped to occupy towns in Libya and islands in the Dodecanese. They played a minor role in World War I after a submarine sank Amalfi shortly after Italy joined the war in 1915. Her sister ship, Pisa, became a training ship after the war and was broken up for scrap in 1937.
The Pisa class was designed in 1904 by Italian engineer Giuseppe Orlando, who attempted to replicate on a smaller scale the armament and armor of the Regina Elena-class battleships then entering the service of the Regia Marina. The Italians classified large armored cruisers like the Pisas as second-class battleships. For ships of their displacement, they were considered to have been heavily armed, but inferior to battlecruisers, a type introduced during their lengthy construction time. [2]
The Pisa-class ships had a length between perpendiculars of 130 meters (426 ft 6 in) and an overall length of 140.5 meters (460 ft 11 in). They had a beam of 21 meters (68 ft 11 in) and a draft of 7.1 meters (23 ft 4 in). The ships displaced 9,832 metric tons (9,677 long tons) at normal load, and 10,401–10,600 metric tons (10,237–10,433 long tons) at deep load. [2] The Pisa class had a complement of 32 officers and 652 to 655 enlisted men. [3]
The ships were powered by two vertical triple-expansion steam engines, each driving one propeller shaft using steam supplied by 22 Belleville boilers. Designed for a maximum output of 20,000 indicated horsepower (15,000 kW) and a speed of 22.5 knots (41.7 km/h; 25.9 mph), [4] both ships handily exceeded this, reaching speeds of 23.47–23.6 knots (43.47–43.71 km/h; 27.01–27.16 mph) during their sea trials from 20,260–20,808 ihp (15,108–15,517 kW). They had a cruising range of about 2,500 nautical miles (4,600 km; 2,900 mi) at a speed of 12 knots (22 km/h; 14 mph) and 1,400 nautical miles (2,600 km; 1,600 mi) at a speed of 21 knots (39 km/h; 24 mph). [2]
The main armament of the two Italian Pisa-class ships consisted of four Cannone da 254/45 V Modello 1906 [Note 1] guns in hydraulically powered, twin-gun turrets fore and aft of the superstructure. The 254 mm (10.0 in) gun fired 217–224-kilogram (478–494 lb) armor-piercing (AP) projectiles at a muzzle velocity of 869 meters per second (2,850 ft/s). [5] The Royal Hellenic Navy preferred smaller 234 mm (9.2 in) guns purchased from Britain for Georgios Averof, but the ship was otherwise armed nearly identically to her half-sisters. [6] The 380-pound (170 kg) shell of the Elswick Pattern 'H' gun was fired at a muzzle velocity of 2,770 feet per second (840 m/s). [7]
The Italian ships mounted eight Cannone da 190/45 V Modello 1906 in four hydraulically powered twin-gun turrets, two in each side amidships, as their secondary armament. These Vickers 190 mm (7.5 in) guns fired 91-kilogram (201 lb) AP shells at 850–870 m/s (2,789–2,853 ft/s). [8] The Elswick Pattern 'B' 7.5-inch guns aboard Georgios Averof used 90.7-kilogram (200 lb) AP shells which were fired at muzzle velocities of 844 m/s (2,770 ft/s). [9]
For defense against torpedo boats, all three ships mounted 16 Vickers quick-firing (QF) Cannone da 76/50 V Modello 1908 guns. [6] This gun fired a 6.5-kilogram (14 lb) projectile at a muzzle velocity of 930 meters per second (3,100 ft/s). [10] The ships were also fitted with eight (Pisa and Amalfi) or four (Georgios Averof) QF Cannone da 47/40 V Modello 1908 guns. [6] The two Italian ships were equipped with three submerged 450 mm (17.7 in) torpedo tubes while those of Georgios Averof were 457 mm (18.0 in) in diameter. [6]
During World War I, Pisa's 76 and 47 mm guns were replaced by twenty 76/40 guns; six of these were anti-aircraft (AA) guns while Georgios Averof received one additional 76 mm AA gun. During her 1925 refit, the latter ship had her light armament changed to four 76 mm low-angle guns, two 76 mm AA guns, four 47 mm low-angle guns and five 40 mm AA guns. [6]
All three ships were protected by an armored belt that was 200 mm (7.9 in) thick amidships and reduced to 90 mm (3.5 in) at the bow and stern. [4] The armored deck was 51 mm (2.0 in) thick. The conning tower armor was 180 mm (7.1 in) thick. The 254 mm gun turrets were protected by 160 mm (6.3 in) of armour while the 190 mm turrets had 140 mm (5.5 in). [3]
Name | Builder [3] | Laid down [6] | Launched [6] | Completed [6] | Fate [6] |
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Pisa | Orlando, Livorno | 20 February 1905 | 15 September 1907 | 1 September 1909 | Discarded, 28 April 1937 |
Amalfi | Odero, Genoa-Sestri Ponente | 24 July 1905 | 5 May 1908 | 1 September 1909 | Sunk, 7 July 1915 |
Georgios Averof | Orlando, Livorno | 1907 | 12 March 1910 | 16 May 1911 [11] | Training accommodation ship, Poros Island, 1952–1983 Museum ship, 1984 |
Two of the three Pisa-class armored cruisers were originally built for the Regia Marina. The third ship was built on speculation and was sold to Greece and completed as Georgios Averof, named after a wealthy Greek businessman who had left a sizeable legacy for the increase of the Greek Navy in his will. [12] The ship participated in the Coronation Fleet Review for King George V of the United Kingdom in 1911 shortly after commissioning. She served in the Balkan Wars and was instrumental in the Greek victories over the Ottoman Empire in the Battles of Elli and Lemnos during the First Balkan War. [13] During World War I, Georgios Averof did not see much active service, as Greece was neutral during the first years of the war. After the Noemvriana riots of 1916, she was seized by the French to ensure that she could do nothing against the Entente. [14] After the war's end, the ship participated in the Greco-Turkish War of 1919–1922 and helped in the evacuation of the refugees after the Greek Army's defeat. [15] In 1925–1927 Georgios Averof was reconstructed in France and rearmed. [12]
The ship was seized by rebels during the failed 1935 Greek coup d'état attempt and was present at the 1935 Silver Jubilee Fleet Review for King George V. [16] During World War II, the ship escaped to Egypt after the Allied defense began to collapse in 1941 during the Battle of Greece. She performed convoy escort and patrolling duties in the Indian Ocean until the end of 1942. [12] Her crew mutinied in early 1944 under the influence of communist sympathizers of the National Liberation Front. The mutiny was suppressed and she ferried the Greek government-in-exile to Athens in late 1944. She was decommissioned in 1952 and is now preserved as a museum ship in Faliron Bay near Athens. Georgios Averof is the only armored cruiser still in existence. [17]
Pisa and Amalfi both participated in the Italo-Turkish War of 1911–1912, during which Pisa supported the occupations of Tobruk, Libya and several islands in the Dodecanese while Amalfi briefly blockaded Tripoli and supported the occupation of Derna, Libya. The sisters came together in 1912 and they bombarded the fortifications defending the entrance to the Dardanelles in July. [18] After the end of the war, Amalfi escorted the Italian king and queen on the royal yacht to Germany and Sweden during a 1913 visit. [19]
After Amalfi was sunk by the submarine U-26 (actually the Imperial German submarine SM UB-14 flying the Austro-Hungarian flag) on 7 July 1915, Pisa's activities were limited by the threat of submarine attack, although the ship did participate in the bombardment of Durazzo, Albania in late 1918. [20] After the war she became a training ship and was stricken from the Navy List in 1937 before being scrapped. [2]
Georgios Averof is a modified Pisa-class armored cruiser built in Italy for the Royal Hellenic Navy in the first decade of the 20th century. The ship served as the Greek flagship during most of the first half of the century. Although popularly known as a battleship (θωρηκτό) in Greek, she is in fact an armored cruiser, the only ship of this type still in existence.
Spetsai was a Greek ironclad battleship of the Hydra class that served in the Royal Hellenic Navy from 1890 until 1920. She was named after the Saronic Gulf island of Spetses, which played a key role in the war at sea during the Greek War of Independence. Spetsai she was ordered in 1885 in response to a crisis in the Balkans and Ottoman naval expansion. The ship was launched in 1889 and delivered to Greece by 1902. She was armed with a main battery of three 10.8 in (274 mm) guns and five 5.9 in (150 mm) guns, and had a top speed of 17 knots.
Hydra was an ironclad warship of the Greek Navy, named for Hydra, one of the Saronic Gulf islands which played a key role in the war at sea during the Greek War of Independence. The lead ship of her class of ironclads, she was ordered in 1885 in response to a crisis in the Balkans and Ottoman naval expansion. The ship was launched in 1889 and delivered to Greece by 1892. She was armed with a main battery of three 10.8 in (274 mm) guns and five 5.9 in (150 mm) guns, and had a top speed of 17 kn.
Psara was a steel-built ironclad warship named for one of the Aegean Sea islands that played a key role in the war at sea during the Greek War of Independence. The final vessel of the Hydra class, she was ordered in 1885 in response to a crisis in the Balkans and Ottoman naval expansion. The ship was launched in 1889 and delivered to Greece by 1902. She was armed with a main battery of three 10.8 in (274 mm) guns and five 5.9 in (150 mm) guns, and had a top speed of 17 kn.
Mesudiye was a central-battery ironclad of the Ottoman Navy, one of the largest ships of that type ever built. She was built at the Thames Iron Works in Britain between 1871 and 1875. Mesudiye had one sister ship, though she was purchased by the Royal Navy and commissioned as HMS Superb. Mesudiye's primary armament consisted of twelve 10-inch (250 mm) guns in a central armored battery.
The Francesco Caracciolo-class battleships were a group of four super-dreadnought battleships designed for the Regia Marina in 1913 and ordered in 1914. The first ship of the class, Francesco Caracciolo, was laid down in late 1914; the other three ships, Cristoforo Colombo, Marcantonio Colonna, and Francesco Morosini followed in 1915. Armed with a main battery of eight 381 mm (15 in) guns and possessing a top speed of 28 knots, the four ships were intended to be the equivalent of the fast battleships like the British Queen Elizabeth class.
The Mirabello class were a group of three destroyers built for the Regia Marina during World War I. Carlo Alberto Racchia was sunk by a mine in the Black Sea during the Allied intervention in the Russian Civil War in 1920. The remaining two ships, obsolescent by 1938, were re-rated as destroyers and participated in World War II. Carlo Mirabello was also lost to a mine while escorting a convoy in 1941. The last surviving ship, Augusto Riboty, was reconfigured as a convoy escort in 1942–1943. The torpedo tubes were removed and depth charges and 20 mm (0.79 in) anti-aircraft guns added. She survived the war and was transferred to the Soviet Union as war reparations in 1946. The ship was scrapped five years later.
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.
The Cannone navale da 381/40 was an Italian naval gun intended to equip the dreadnought battleships of the Francesco Caracciolo class. The ships were cancelled in 1916 and their guns were diverted to other uses. Four of the seven turned over to the Esercito Italiano became railroad guns, six were used as coast-defense guns and the rest were used on monitors to provide naval gunfire support for the Army. Most of the monitors were disarmed after World War I and their guns were transferred to coast-defense batteries which were used throughout World War II.
Faà di Bruno was an Italian monitor built during World War I. Completed in 1917, the ship played a small role in the 11th Battle of the Isonzo later that year. She was decommissioned in 1924, but returned to service as the floating battery GM 194 at the beginning of World War II and was towed to Genoa and where she spent the rest of the war. The ship had her guns disabled when the Royal Navy bombarded Genoa in 1941. GM 194 was captured by the Germans after the Italian Armistice in 1943 and was turned over to the puppet Repubblica Sociale Italiana that they installed afterward. She was scuttled at the end of the war and subsequently scrapped.
The Vettor Pisani class consisted of two armoured cruisers built for the Royal Italian Navy in the 1890s. The two ships of the class, Vettor Pisani and Carlo Alberto, were frequently deployed overseas during their careers. The former served in the Far East during the Boxer Rebellion of 1900 while the latter was involved in pioneering long-range radio experiments several years later before deploying to South American waters. Carlo Alberto then served as a training ship for several years. Both ships participated in the Italo-Turkish War of 1911–12 and played minor roles in World War I, during which time Carlo Alberto was converted into a troop transport and Vettor Pisani into a repair ship. They were both discarded in 1920 and subsequently scrapped.
The Italian cruiser San Marco was a San Giorgio-class armoured cruiser built for the Royal Italian Navy 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. 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 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.
The Campania class was a pair of small protected cruisers built for the Italian Regia Marina in the 1910s. The two ships, Campania and Basilicata, were the last ships of that type built by the 'Regia Marina, as it had been superseded by more effective light cruisers. The Campania class was designed for use in Italy's overseas colonies, on the model of the old Calabria. Neither ship had a particularly eventful career. Basilicata was destroyed by a boiler explosion in 1919, two years after entering service, and was subsequently raised and scrapped. Campania remained in service for significantly longer, but she did not see action and ended her career as a training ship before being scrapped in 1937.
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.
The Cannon 76/40 Model 1916 was a widely used naval gun on ships of the Royal Italian Navy during World War I and World War II. A very versatile weapon it was used as primary, secondary and tertiary armament on a number of ship classes, while other ship classes had a shortened version of it, the Cannon 76/30 Model 1915. After being replaced aboard ships of the Royal Italian Navy it saw widespread use on land in a number of different roles such as coastal artillery, anti-aircraft gun and railroad gun during World War II.
The Cannone da 190/45 was a family of Italian naval guns that were the secondary armament of two classes of armored cruisers of the Regia Marina and Hellenic Navy built before World War I. The cruisers that they were aboard saw action in both world wars. It is also believed that spare guns may have been used as coastal artillery during World War II.
Augusto Riboty was one of three Mirabello-class destroyers built for the Regia Marina during World War I.
Carlo Mirabello was one of three Mirabello-class destroyers built for the Regia Marina during World War I.