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List of 120 mm Italian naval guns
Italian 120 millimetre naval guns were standard main armament on Italian destroyers and were widely used on various other ships and coastal artillery. The 50-calibre guns used a charge of 9.7 kilograms (21 lb) of smokeless powder to push a 23.49-kilogram (51.8 lb) projectile to a velocity of 950 metres per second (3,100 ft/s). Velocity was later reduced to 920 metres per second (3,000 ft/s), which gave a maximum range of 19.6 kilometres (12.2 mi) at 45° elevation or 18.2 kilometres (11.3 mi) at 35° elevation. Variants of similar designs were built by Ansaldo, OTO, Vickers, Schneider, Canet and Armstrong. Older and shorter-barreled guns have different ballistics as noted below.
These were British QF Mark I and III guns used as coastal artillery and as star shell guns aboard Littorio-class battleships.
These guns formed the original secondary battery of Andrea Doria and Conte di Cavour-class battleships and were later used for coastal artillery. They fired a 22.75-kilogram (50.2 lb) projectile at 840 metres per second (2,800 ft/s).
These guns were developed from the older 40-calibre models and installed as coastal artillery and aboard troopships and armed merchant cruisers. They fired a 51-pound (23 kg) projectile at 750 metres per second (2,500 ft/s). Range was 12.6 kilometres (7.8 mi) at the maximum elevation of 30°.
These guns with a maximum elevation of 30° were installed as coastal artillery and aboard auxiliary ships.
This gun was a twin mounting of the 1918 gun with maximum elevation increased to 32° . These guns were the main armament of Leone-class destroyers and the sloop Eritrea.
These guns were the main armament of Sauro-class destroyers. A charge of 7.6 kilograms (17 lb) of smokeless powder pushed 51-pound (23 kg) projectiles at 850 metres per second (2,800 ft/s) to a range of 15.5 kilometres (9.6 mi) at the maximum elevation of 33°; but dispersion was increased by using a common cradle for the 16.6-ton twin mount.
These were the original deck guns aboard Ettore Fieramosca and the Balilla-class submarines. When replaced by the 45-caliber OTO 1931, these guns were installed as an anti-aircraft battery at Messina where they fired 42.7-pound (19.4 kg) projectiles at a velocity of 730 metres per second (2,400 ft/s) to a ceiling of 7.8 kilometres (26,000 ft).
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List of 120 mm Italian naval guns
Italian 120 millimetre naval guns were standard main armament on Italian destroyers and were widely used on various other ships and coastal artillery. The 50-calibre guns used a charge of 9.7 kilograms (21 lb) of smokeless powder to push a 23.49-kilogram (51.8 lb) projectile to a velocity of 950 metres per second (3,100 ft/s). Velocity was later reduced to 920 metres per second (3,000 ft/s), which gave a maximum range of 19.6 kilometres (12.2 mi) at 45° elevation or 18.2 kilometres (11.3 mi) at 35° elevation. Variants of similar designs were built by Ansaldo, OTO, Vickers, Schneider, Canet and Armstrong. Older and shorter-barreled guns have different ballistics as noted below.
These were British QF Mark I and III guns used as coastal artillery and as star shell guns aboard Littorio-class battleships.
These guns formed the original secondary battery of Andrea Doria and Conte di Cavour-class battleships and were later used for coastal artillery. They fired a 22.75-kilogram (50.2 lb) projectile at 840 metres per second (2,800 ft/s).
These guns were developed from the older 40-calibre models and installed as coastal artillery and aboard troopships and armed merchant cruisers. They fired a 51-pound (23 kg) projectile at 750 metres per second (2,500 ft/s). Range was 12.6 kilometres (7.8 mi) at the maximum elevation of 30°.
These guns with a maximum elevation of 30° were installed as coastal artillery and aboard auxiliary ships.
This gun was a twin mounting of the 1918 gun with maximum elevation increased to 32° . These guns were the main armament of Leone-class destroyers and the sloop Eritrea.
These guns were the main armament of Sauro-class destroyers. A charge of 7.6 kilograms (17 lb) of smokeless powder pushed 51-pound (23 kg) projectiles at 850 metres per second (2,800 ft/s) to a range of 15.5 kilometres (9.6 mi) at the maximum elevation of 33°; but dispersion was increased by using a common cradle for the 16.6-ton twin mount.
These were the original deck guns aboard Ettore Fieramosca and the Balilla-class submarines. When replaced by the 45-caliber OTO 1931, these guns were installed as an anti-aircraft battery at Messina where they fired 42.7-pound (19.4 kg) projectiles at a velocity of 730 metres per second (2,400 ft/s) to a ceiling of 7.8 kilometres (26,000 ft).