In the aftermath of World War I, the Italian Regia Marina (Royal Navy) received a group of light cruisers from the defeated German and Austro-Hungarian fleets. At the time, the Italian naval command was satisfied with these vessels as a supplement to their existing scout cruisers in the immediate postwar era. After the French Navy began building twelve large destroyers of the Chacal and Guépard classes, the Italian command responded by ordering the four Giussano-class cruisers.[1] The Giussanos were intended to overpower the new French destroyers with superior armament and very high speed, at the expense of most armor protection.[2]
Profile sketch of the Giussano-class
Bartolomeo Colleoni was 169.3 meters (555ft 5in)long overall, with a beam of 15.5m (50ft 10in) and a draft of 5.3m (17ft 5in). She displaced5,170 long tons (5,250t) at standard displacement and up to 6,844 long tons (6,954t) at full load. The ship had a long forecastle deck that extended for the first third of the hull, before stepping down to the main deck that continued for the rest of the ship's length. Her hull was very lightly built to save weight. Her superstructure consisted of a large conning tower forward that incorporated a tripod mast and a smaller, secondary tower aft. She was fitted with an aircraft catapult on her forecastle, and could carry two reconnaissance aircraft; she initially carried CANT 25seaplanes, but these were later replaced with IMAM Ro.43. She had a crew of 520officers and enlisted men.[3][4]
Her power plant consisted of two Belluzzo geared steam turbines powered by six oil-fired Yarrow boilers, which were ducted into two widely spaced funnels. The propulsion system was arranged on the unit system of machinery, which divided the engines and boilers into two separate pairs. Her engines were rated at 95,000 shaft horsepower (71,000kW) and produced a top speed of 36.5 knots (67.6km/h; 42.0mph). During her sea trials, she reached a top speed of 39.9 knots (73.9km/h; 45.9mph) from 119,177ihp (88,870kW), though in service she could only maintain a speed of 30 knots (56km/h; 35mph) at sea.[2][4]
Bartolomeo Colleoni was armed with a main battery of eight 152mm (6in) Mod 26 53-caliber guns in four gun turrets. The turrets were arranged in superfiring pairs forward and aft. Anti-aircraft defense was provided by a battery of six 100mm (4in) 47-cal. guns in twin mounts, eight 37mm (1.5in) /54 guns in twin mounts, and eight 13.2mm (0.52in) guns in twin mounts. Her armament was rounded out by four 533mm (21in)torpedo tubes in two twin launchers on the main deck amidships.[5]
The ship's armor belt was 24mm (0.94in) thick, extending only for the length of the hull that contained the propulsion machinery spaces and the ammunition magazines. The belt was closed on either end by 20mm (0.79in) transverse bulkheads and was capped by an armor deck of the same thickness. Inboard of the belt, an 18mm (0.71in) thick inner bulkhead was intended to catch shell fragments that penetrated the main belt. The main battery turrets received 23mm (0.91in) of protection, and her conning tower received 25 to 40mm (0.98 to 1.57in) of armor plate.[4]
Bartolomeo Colleoni was built by the Gio. Ansaldo & C. shipyard in Genoa, Italy. She was laid down on 21 June 1928, and was named after the CondottieroBartolomeo Colleoni. Her completed hull was launched on 21 December 1930. She was completed on 10 February 1932, and upon entering service, she was assigned to the II Naval Squadron, which was based at La Spezia. After the outbreak of the Spanish Civil War in 1936, the fascist Italian government began aiding to their fellow fascists in the Nationalist faction under Francisco Franco. Bartolomeo Colleoni departed Italy on 5 September and arrived in Barcelona on 3 October, where she protected Italian nationals in the area. Over the course of January and February 1937, she escorted four convoys carrying soldiers and supplies to support Franco's forces. During this period, she also patrolled off ports controlled by the Republican faction to block supply shipments going to Franco's opponents.[5][6]
After the start of the Second Sino-Japanese War in 1937, Italy and other European powers began to strengthen their forces in East Asia. In November 1938, Bartolomeo Colleoni was dispatched to relieve the light cruiser Raimondo Montecuccoli. Bartolomeo Colleoni arrived in Shanghai on 23 December; the port there was under Japanese occupation. The ship cruised in Chinese waters for nearly a year, until October 1939, when she was recalled home in response to the start of World War II in September. She left behind the sloopLepanto to protect Italian interests in China Bartolomeo Colleoni arrived in Italy on 28 October.[7][8]
World War II
On 10 June 1940, Italy declared war on Britain and France, entering World War II on the side of Germany. At that time, Bartolomeo Colleoni was assigned to II Division of II Squadron, along with her sister shipGiovanni delle Bande Nere. The two ships were moved to Palermo, Sicily, and on the evening of 10 June, they sortied to lay mines in the Strait of Sicily. On 22 June, the two cruisers departed to search for French ships that were reportedly west of Sardinia, but they returned to port two days later, having failed to locate any French vessels. By the end of the month, France had signed the Armistice of Villa Incisa, ending their participation in the war. As a result, Bartolomeo Colleoni and Giovanni delle Bande Nere were moved to Augusta in eastern Sicily. On 2–3 July, the ships carried another sweep that failed to locate any British ships, and the next day they covered a convoy from Tripoli in Italian Libya to Italy.[7]
On 7 July, Bartolomeo Colleoni and Giovanni delle Bande Nere sortied as part of the escort for a large convoy sailing to Benghazi in Libya.[9] The convoy consisted of five freighters and a passenger liner that were carrying some 2,200 men, 72tanks, 237other vehicles, and a large amount of supplies and fuel; these were intended to fortify the planned invasion of Egypt. II Division, along with the 10th Destroyer Squadron (which consisted of Maestrale, Libeccio, Grecale, and Scirocco) and the torpedo boatsPegaso, Orione, Orsa, Procione, Abba, and Pilo, formed the convoy's close escort.[10][11] Significant elements of the Italian fleet were at sea as part of the convoy, which the British attempted to intercept. In the ensuing Battle of Calabria on 9 July, the ships of II Division were assigned to make sure the convoy arrived in port undamaged. The convoy arrived in Benghazi the next day, but Bartolomeo Colleoni and Giovanni delle Bande Nere soon moved to Tripoli to avoid attacks from British aircraft based in Egypt. The Italian naval command considered sending the two cruisers to bombard British positions on the coast at Sollum, but decided against it; instead, they were to be sent to Portolago in the Dodecanese. From there, they were to attack British convoys in the Aegean Sea.[9]
Battle of Cape Spada
Bartolomeo Colleoni during the action with HMAS Sydney
Bartolomeo Colleoni and Giovanni delle Bande Nere left Tripoli on the evening of 17 July and sailed to the north of Crete, bound for the Aegean. On the 19th, the four British destroyers HMSHyperion, Ilex, Hero, and Hasty were sent on an anti-submarine patrol in the area, while the Australian light cruiser HMASSydney and the British destroyer Havock searched the Gulf of Athens. At around 06:00 on 19 July, the Italians spotted the four British destroyers off Cape Spada of western Crete, which were some 17,000m (19,000yd) away; Sydney and Havock were around 60 nautical miles (110km; 69mi) to the north. The British ships immediately signaled Sydney and turned to flee at high speed. The Italian commander, Rear AdmiralFerdinando Casardi aboard Giovanni delle Bande Nere, ordered his ships to pursue the retreating British ships, believing them to be part of the escort for a convoy he hoped to attack. At 06:27, the Italian cruisers opened fire on the destroyers, but the faster destroyers were able to pull out of range without having been hit.[9][lower-alpha 1] At around this time, a Greek freighter passed between the formations but quickly withdrew from the area.[12]
Casardi pursued the British blindly, deciding not to launch any of his reconnaissance aircraft (both because of the sea state and not wanting to slow down to launch them), and he was also not supported by any land based aircraft in the area. As a result, they had no way to know that Sydney was in the area, and when she arrived on the scene at around 07:30 and opened fire, it took the Italians completely by surprise. The Australian cruiser had opened fire from a range of about 12,000m (13,000yd) while in the middle of a fog bank; almost immediately, she hit Giovanni delle Bande Nere near her aft funnel. The Italian cruisers quickly returned fire, but had difficulty locating the target in the fog, as they only had Sydney's muzzle flashes to aim at. They also rolled badly in the heavy seas, which further hampered their gun laying.[9] Captain Collins of Sydney detached Havock to join the other destroyers, Collins ordered to make a torpedo attack on the cruisers. Casardi responded by turning his ships south and then southwest to move to less restricted waters further from Crete. As the Italians withdrew, Sydney alternated fire between the two cruisers, depending on which was more visible, but she focused her fire on Bartolomeo Colleoni, as she was generally closer.[14]
Bartolomeo Colleoni, capsized and sinking
At 08:24, Sydney struck Bartolomeo Colleoni with a salvo of 152mm shells; one of the rounds jammed her rudder in the neutral position. The ship was now unable to steer, but she remained on the course she had been steaming. Shortly thereafter, another salvo from Sydney hit the ship amidships, causing extensive damage and starting several fires. One shell struck her conning tower and killed much of the bridge crew. The ship lost speed, which allowed the British destroyers to come into range. Further hits disabled two of the boilers and destroyed the main steam condenser, which was used to feed water back into the boilers. Without water to boil, the engines quickly shut down, leaving Bartolomeo Colleoni dead in the water. The ammunition hoists for her main battery guns were also disabled. Her 100mm guns kept firing, as they could be operated manually. Within six minutes of the first hit, the ship had been effectively neutralized and Captain Umberto Novaro issued the order to abandon ship.[13][15]
At about that time, Ilex and Havock closed to launch torpedoes at the stricken cruiser, though their initial attacks missed. Hyperion joined the two destroyers, which had launched a further round of torpedoes, one of which hit Bartolomeo Colleoni. The torpedo, from Ilex, struck forward and blew off the first 30m (98ft) of her bow.[16][17] Casardi circled back at 08:50 to attempt to come to her aid, but quickly determined that the situation was hopeless, so he turned back to the west and fled at high speed.[18]Hyperion then launched a torpedo that struck amidships. The second hit caused serious flooding, and Bartolomeo Colleoni quickly capsized and sank. Sydney, Hero, and Hasty continued the pursuit of Giovanni delle Bande Nere, but Ilex, Havock, and Hyperion approached the area that survivors from Bartolomeo Colleoni were afloat. They picked up 525men between the three of them, of whom 8 died of their wounds and were buried at sea. The British had to suspend rescue efforts when Italian bombers appeared and attacked the ships. A further fifty men attempted to swim to the coast of Crete, but only seven survived to be picked up by a Greek fishing boat. Four more men, including captain Novaro, died aboard hospital ship Maine at Alexandria, Egypt. These men were buried there, and the captains of Sydney and the destroyers served as the pallbearers. [19] In total, 121 out of a crew of 643 were killed in the sinking.[16][17]
In their assessment of the battle, the naval historians Jack Greene and Alessandro Massignani note that Casardi had been too cautious in the initial stage of the battle, and that if he had closed to attack the destroyers, he might have defeated them. Instead, he chose to fire at long range to keep his cruisers far enough away that the destroyers would not be able to return fire. They also point out that Italian gunnery was less accurate than their British counterparts, which compounded Casardi's decision to fight at long range. Lastly, they suggested that the Italians might have had a better outcome if they had sent a stronger force, instead of just the two light cruisers.[20] The naval historian Vincent O'Hara pointed out that the Italian cruisers fired some 500 shells between the two of them, scoring one hit on Sydney, while the latter vessel had fired around 1,300 shells alone and scored five hits, noting that the better British shooting was the result of a much higher volume of fire.[21]
Footnotes
Notes
↑ The times in this section are sometimes reported an hour ahead, presumably due to the use of different time zones, depending on the Italian or British perspective. For example, Greene and Massignani report the opening of fire as 07:27, rather than at 06:27,[12] as reported by Gay & Gay or O'Hara.[13]
The Battle of Cape Matapan was a naval battle during the Second World War between the Allies, represented by the navies of the United Kingdom and Australia, and the Royal Italian navy, from 27 to 29 March 1941. Cape Matapan is on the south-western coast of the Peloponnesian Peninsula of Greece.
HMS Havock was an H-class destroyer built for the British Royal Navy in the mid-1930s. During the Spanish Civil War of 1936–1939, the ship enforced the arms blockade imposed by Britain and France on both sides as part of the Mediterranean Fleet. During the first few months of the Second World War, Havock searched for German commerce raiders in the Atlantic Ocean and participated in the First Battle of Narvik during the Norwegian Campaign of April–June 1940 before she was transferred back to the Mediterranean Fleet in May where she escorted a number of convoys to Malta. The ship took part in the Battle of Cape Spada in July 1940, the Battle of Cape Matapan in March 1941 and the evacuation of Greece in April 1941. She was damaged during the Battle of Crete the following month, but participated in the Syria–Lebanon Campaign in June.
The Battle of Calabria, known to the Italian Navy as the Battle of Punta Stilo, was a naval battle during the Battle of the Mediterranean in the Second World War. Ships of the Regia Marina were opposed by vessels of the Mediterranean Fleet. The battle occurred 30 nmi to the east of Punta Stilo, Calabria, on 9 July 1940. It was one of the few naval battles of the Mediterranean campaign involving large numbers of ships on both sides. The battle was indecisive and the ships returned to base; it was the first battleship engagement between the Regia Marina and the Mediterranean Fleet.
HMAS Sydney, named for the Australian city of Sydney, was one of three modified Leander-class light cruisers operated by the Royal Australian Navy (RAN). Ordered for the Royal Navy as HMS Phaeton, the cruiser was purchased by the Australian government and renamed prior to her 1934 launch.
The Second Battle of Sirte was a naval engagement in the Mediterranean Sea, north of the Gulf of Sidra and south-east of Malta, during the Second World War. The escorting warships of a British convoy to Malta held off a much more powerful squadron of the Regia Marina. The British convoy was composed of four merchant ships, escorted by four light cruisers, one anti-aircraft cruiser and 17 destroyers. The Italian force comprised a battleship, two heavy cruisers, one light cruiser and ten destroyers. Despite the British success at warding off the Italian squadron, the Italian fleet attack delayed the convoy's planned arrival before dawn, which exposed it to intense air attacks that sank all four merchant ships and one of the escorting destroyers in the following days.
The Battle of Cape Spada was a naval battle during the Battle of the Mediterranean in World War II. It took place on 19 July 1940 in the Mediterranean Sea off Cape Spada, the north-western extremity of Crete.
Giovanni delle Bande Nere was an Italian light cruiser of the Giussano class, which served in the Regia Marina during World War II. She was named after the eponymous 16th-century condottiero and member of the Medici family. Her keel was laid down in 1928 at Cantieri Navali di Castellammare di Stabia, Castellammare di Stabia; she was launched on 27 April 1930, and her construction was completed in 1931. Unlike her three sisters, the finish and workmanship on the vessel were not rated highly. She was sunk on 1 April 1942 by the British submarine HMS Urge.
The Condottieri class was a sequence of five light cruiser classes of the Regia Marina, although these classes show a clear line of evolution. They were built before World War II to gain predominance in the Mediterranean Sea. The ships were named after condottieri of Italian history.
The naval Battle of Cape Bon took place on 13 December 1941 during the Second World War, between two Italian light cruisers and an Allied destroyer flotilla, off Cape Bon in Tunisia.
The Alberto di Giussano class of light cruisers were a sub-class of the Condottieri class built before World War II for the Italian Regia Marina, to gain predominance in the Mediterranean Sea. They were designed by general Giuseppe Vian and were named after Condottieri of the Italian Mediaeval and Renaissance periods.
Trento was the first of two Trento-class cruisers; they were the first heavy cruisers built for the Italian Regia Marina. The ship was laid down in February 1925, launched in October 1927, and was commissioned in April 1929. Trento was very lightly armored, with only a 70 mm (2.8 in) thick armored belt, though she possessed a high speed and heavy main battery of eight 203 mm (8 in) guns. Though nominally built under the restrictions of the Washington Naval Treaty, the two cruisers significantly exceeded the displacement limits imposed by the treaty.
HMS Cleopatra was a Dido-class cruiser of the Royal Navy. She was built by R. and W. Hawthorn, Leslie and Company, Limited, with the keel being laid down on 5 January 1939. She was launched on 27 March 1940, and commissioned on 5 December 1941.
Alberico da Barbiano was an Italian Giussano-class light cruiser, that served in the Regia Marina during World War II. She was named after Alberico da Barbiano, an Italian condottiero of the 14th century.
The Battle of Cape Passero (1940), was a Second World War naval engagement between the British light cruiser HMS Ajax and seven torpedo boats and destroyers of the Italian Regia Marina, southeast of Sicily, in the early hours of 12 October 1940. It took place in the aftermath of a British supply operation to Malta.
The Action in the Strait of Otranto [also the Battle of the Strait of Otranto (1940)] was the destruction of an Italian convoy on 12 November 1940 during the Battle of the Mediterranean in the Second World War. It took place in the Strait of Otranto in the Adriatic Sea, between the Royal Navy and the Italian Royal Navy.
Pola was a Zara-class heavy cruiser of the Italian Regia Marina, named after the Italian city of Pola. She was built in the Odero Terni Orlando shipyard in Livorno in the early 1930s and entered service in 1932. She was the fourth and last ship in the class, which also included Zara, Fiume, and Gorizia. Compared to her sisters, Pola was built as a flagship with a larger conning tower to accommodate an admiral's staff. Like her sisters, she was armed with a battery of eight 203-millimeter (8.0 in) guns and was capable of a top speed of 32 knots.
Ferdinando Casardi was an Italian admiral during World War II.
Ostro was one of eight Turbine-class destroyers built for the Regia Marina during the 1920s. She was named after a southerly wind, Ostro, common in the Mediterranean and Adriatic. The ship played a minor role in the Spanish Civil War of 1936–1937, supporting the Nationalists.
Italian destroyer Espero was one of eight Turbine-class destroyers built for the Regia Marina during the 1920s. She was named after a westerly wind, Espero, or Ponente, common in summer in the Mediterranean. Completed in 1928, Espero was sent to Shanghai after the Shanghai Incident on 28 January 1932. After encountering heavy seas, she had to stop at Saigon, French Indochina, then stayed in the Far East even after a truce had been negotiated between China and Japan.
The Italian torpedo boat Sagittario was a Spica-class torpedo boat built for the Regia Marina in 1936. During the Battle of the Mediterranean, in the Second World War, Sagittario was involved in several convoy missions, the most notable that known as the "Sagittario convoy", in the course of the Battle of Crete, for which her commander, Giuseppe Cigala Fulgosi, was awarded the Gold Medal of Military Valour. Sagittario survived the war. Re-classified as corvette in 1949, she was scrapped in 1964.
References
Fraccaroli, Aldo (1986). "Italy". In Gardiner, Robert & Gray, Randal (eds.). Conway's All the World's Fighting Ships 1906–1921. London: Conway Maritime Press. pp.252–290. ISBN978-0-85177-245-5.
Gay, Franco; Gay, Valerio (1988). The Cruiser Bartolomeo Colleoni. Anatomy of the Ship. London: Conway Maritime Press. ISBN978-0-87021-900-9.
Greene, Jack; Massignani, Alessandro (1998). The Naval War in the Mediterranean, 1940–1943. London: Chatham Publishing. ISBN978-1-86176-057-9.
O'Hara, Vincent (2009). Struggle for the Middle Sea: The Great Navies at War in the Mediterranean Theater, 1940–1945. Annapolis: Naval Institute Press. ISBN978-1-59114-648-3.
Rohwer, Jürgen (2005). Chronology of the War at Sea, 1939–1945: The Naval History of World War Two. Annapolis: Naval Institute Press. ISBN978-1-59114-119-8.
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