Cannone da 75/27 A.V.
A Battery of 75/27 A.V. at the test range in Nettuno.
Type	Anti-aircraft gun
Place of origin	Italy
Service history
In service	1917–1943
Used by	Italy Nazi Germany
Wars	World War I World War II
Production history
Designed	1916
Manufacturer	Ansaldo
Variants	Autocannone da 75/27 C.K.
Specifications
Mass	1.9 t (1.9 long tons; 2.1 short tons)
Barrel length	2.025 m (6 ft 8 in) L/27
Shell	Fixed QF 75 x 185mm R[1]
Shell weight	6.5 kg (14 lb 5 oz)
Caliber	75 mm (3 in)
Action	Semi-automatic
Breech	Horizontal sliding-wedge
Recoil	Hydro-spring
Elevation	–5° to +80°
Traverse	360°
Rate of fire	15 RPM
Muzzle velocity	510 m/s (1,700 ft/s)
Effective firing range	5,500 m (18,000 ft)
Maximum firing range	6,000 m (20,000 ft)[2]

The Cannone da 75/27 A.V. was an anti-aircraft gun developed in Italy during the First World War that also saw service during the Second World War.

The 75/27 A.V. (Anti Velivolo, Anti-Aircraft) cannon was privately developed by Ansaldo to supply an anti-aircraft gun to the Regia Esercito.

The 75/27 A.V. used the barrel and hydro-spring recoil mechanism from the Cannone da 75/27 modello 06 a license-built version of the Krupp Kanone M 1906 field gun to speed up production and it used the same Fixed QF 75 x 185mm R ammunition. The barrel consisted of a rifled liner with 28 left-handed grooves, and an external jacket, it was 2.025 m (6 ft 8 in) L/27 long and weighed 346 kg (763 lb) including the semi-automatic horizontal sliding-wedge breech. The breech closed automatically when a projectile was fed into the chamber and after firing the shell casing was ejected and the breech was held open for the next round.^[2]

• The 75/27 A.V. - was mounted on a static center pivot mount with -5° to + 80° of elevation and 360° of traverse. The 75/27 A.V. was used during the First World War for the defense of metropolitan areas by the Regia Esercito. During the Second World War it was assigned to coastal defense, anti-aircraft, and second line units.^[3]
• The Autocannone da 75/27 C.K. - was a self-propelled anti-aircraft gun with a new pedestal mount and new recoil mechanism that was mounted on the chassis of a Lancia 1Z truck. In 1915 these formed the basis of Italy's first truck-mounted artillery. Eventually, twenty-seven batteries of five guns were formed during World War I.^[4]

• Filippo Cappellano, Le artiglierie del Regio Esercito nella Seconda Guerra Mondiale, Storia Militare, 1998.
• Chamberlain, Peter & Gander, Terry. Light and Medium Field Artillery. New York: Arco, 1975.
• Ralph A Riccio, Italian truck-mounted artillery in action Carrollton, TX: Squadron Signal, 2010.

• Cannone da 75/27 Mod. 1906
• Cannone 75/27 C.K.

• Scheda sul sito dell'associazione "Custodia del Grifo Arciere" Archived 2015-09-24 at the Wayback Machine
• Scheda su regioesercito.it