40 mm/39 Vickers-Terni mod.1915/1917 (40 mm)

Description

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Vehicles equipped with this weapon

General info

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Available ammunition

Penetration statistics
Ammunition	Type of warhead	Penetration @ 0° Angle of Attack (mm)
Ammunition	Type of warhead	10 m	100 m	500 m	1,000 m	1,500 m	2,000 m
40 mm HE-TF	HE-TF	3	3	3	3	3	3

Shell details
Ammunition	Type of warhead	Velocity (m/s)	Projectile mass (kg)	Fuse delay (m)	Fuse sensitivity (mm)	Explosive mass (TNT equivalent) (g)	Ricochet
Ammunition	Type of warhead	Velocity (m/s)	Projectile mass (kg)	Fuse delay (m)	Fuse sensitivity (mm)	Explosive mass (TNT equivalent) (g)	0%	50%	100%
40 mm HE-TF	HE-TF	610	0.92	0	0.1	31	79°	80°	81°

Comparison with analogues

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Usage in battles

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Pros and cons

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Pros:

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History

The Vickers-Terni mod.1915/1917 is an Italian licensed version of the 2-pounder Mark II "pom-poms" used by the British Navy. In 1915, the Royal Navy understood the threat aircraft would pose and ordered what became the "pom-poms" to arm their ships of cruiser size and below. A scaled-up version of a design by Sir Hiram Maxim, the design was adopted by the Italians in 1917. Originally, 50 were purchased from the UK before the production license was negotiated with Vickers-Terni. It remained the main production anti-aircraft gun until the 1930s when the Regio Marina (Royal Italian Navy) began looking for a replacement. While the gun was updated as the 40 mm/39 Vickers-Terni mod.1915/1917, Modif.1930, this move was only a stopgap until the locally designed 37 mm/54 Breda Mod.32 was adopted.

Media

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External links

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Italy naval cannons
20 mm	20 mm/65 Breda · 20 mm/70 Oerlikon 3S · 20 mm/70 Scotti-Isotta Fraschini mod.1939
37 mm	37 mm/54 Breda Mod.32 · 37 mm/54 Breda Mod.38 · 37 mm/54 Breda Mod.39
40 mm	40 mm/39 Vickers-Terni mod.1915/1917 · 40 mm/39 Vickers-Terni mod.1915/1917, Modif.1930 · 40 mm/70 Breda-Bofors type 107
65 mm	65 mm/64 Ansaldo-Terni Mod.1939
76 mm	76 mm/40 Armstrong mod.1897/1910 · 76 mm/40 Armstrong mod.1897/1912 · 76 mm/40 Ansaldo mod.1917 · 76 mm/45 Schneider mod.1911 · 76 mm/50 Vickers mod.1909 · 76 mm/62 OTO-Melara Compact · 76-mm/62 SMP 3
90 mm	90 mm/50 Ansaldo model 1939
100 mm	100 mm/47 O.T.O. Mod. 1928 · 100 mm/47 O.T.O. Mod. 1937
120 mm	120 mm/45 Canet-Schneider-Armstrong mod.1918-19 · 120 mm/50 Armstrong model 1909 · 120 mm/45 O.T.O. Mod. 1926 · 120 mm/50 Ansaldo mod.1926 · 120 mm/50 O.T.O. Mod.1936
135 mm	135 mm/45 O.T.O. Mod. 1937
152 mm	152 mm/45 Schneider mod.1911 · 152/53 mm Ansaldo mod.1926 · 152/53 mm O.T.O. Mod.1929
203 mm	203 mm/50 Ansaldo mod.1924 · 203 mm/53 Ansaldo mod.1927
305 mm	305 mm/46 Armstrong model 1909 · 305 mm/46 Vickers model 1909
320 mm	320 mm/44 OTO model 1934 · 320 mm/44 Ansaldo model 1936
	Foreign:
20 mm	2 cm/65 Flakvierling 38 ^(Germany) · 20 mm/70 Oerlikon Mk.II ^(USA)
40 mm	Bofors L/60 Mark 1 ^(USA) · Bofors L/60 Mark 3 ^(USA)
76 mm	76 mm/50 Mk.33 ^(USA)
127 mm	127 mm/38 Mk.12 ^(USA)