100 mm/47 O.T.O. Mod. 1928 (100 mm)

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Write an introduction to the article in 2-3 small paragraphs. Briefly tell us about the history of the development and combat using the weaponry and also about its features. Compile a list of air, ground, or naval vehicles that feature this weapon system in the game.

Vehicles equipped with this weapon

General info

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Available ammunition

Penetration statistics
Ammunition Type of
Penetration @ 0° Angle of Attack (mm)
100 m 1,000 m 2,000 m 3,000 m 4,000 m 5,000 m
100 mm HE Dirompente HE 17 17 17 17 17 17
100 mm APHE Perforante APHE 150 129 109 93 78 67
100 mm HE-TF Contro-aerea HE-TF 17 17 17 17 17 17
Shell details
Ammunition Type of
mass (kg)
Fuse delay
Fuse sensitivity
Explosive mass
(TNT equivalent) (g)
0% 50% 100%
100 mm HE Dirompente HE 850 13.2 0 0.1 1,300 79° 80° 81°
100 mm APHE Perforante APHE 850 13.8 0.005 6 820 47° 60° 65°
100 mm HE-TF Contro-aerea HE-TF 850 13.2 0 0.1 1,300 79° 80° 81°

Comparison with analogues

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Usage in battles

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Pros and cons

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The Austro-Hungarian Empire began to lay down plans for a much expanded naval force in the early 1900s. No longer content with a coastal defense force, they wanted to have control over the Adriatic Sea. The change was influenced by the politics of Marinekommandant (Chief of the Navy) Rudolf Montecuccoil and crown prince Archduke Franz Ferdinand who viewed Italy as a threat, along with the new railway linking their ports at Trieste (present-day Italy) and the Dalmatian coastline (present-day Croatia) to the rest of the Empire. The new fleet expansion program led to orders for a new cannon to arm their destroyers and scout cruisers leading to the Škoda K 10 first developed in 1907 and adopted in 1910. After World War I ended, the Austro-Hungarian Empire was dismantled by the Allied Powers. This dismantling included the navy with Italy getting the K 10 guns on the Brindisi and Venezia which were ships ceded from the Austro-Hungarian Navy as war reparations.

The Italians were so enamoured with the design, they began to produce the design locally through OTO which resulted in a variety of different variants of the design. The O.T.O. Mod.1928 was a dual-mount anti-aircraft variant with electrically powered adjustable trunnions, rope rammers and mechanized spring, and a loose liner. Despite being intended for anti-aircraft use, the gun was too slow for this role, particularly if a ship was rolling and it was instead more suited for barrage fire. The RN Balzano, Condottieri-class, RN San Giorgio, and Zara-class cruisers all used these guns. They were also used on the Conte di Cavour-class dreadnoughts. The Soviet Navy also used this gun as the Minizini named for the developer of the duel mount Italian Commandante Minizini.


Excellent additions to the article would be video guides, screenshots from the game, and photos.

See also

External links

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  • topic on the official game forum;
  • other literature.

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 · 76/50 Mk.33 · 76 mm/62 OTO-Melara Compact · 76-mm/62 SMP 3
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
127 mm  127/38 Mk.12
135 mm  135 mm/45 O.T.O. Mod. 1938
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
20 mm  2 cm/65 Flakvierling 38 (Germany)
40 mm  Bofors L/60 Mark 3 (USA)