152/53 mm O.T.O. Mod.1929 (152 mm)

Description

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Vehicles equipped with this weapon

• Kerch
• RN Eugenio di Savoia
• RN Raimondo Montecuccoli

General info

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Available ammunition

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Comparison with analogues

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Usage in battles

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Pros and cons

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Pros:

Cons:

History

The 152 mm /53 Model 1926–1929 were built for the Italian Navy in the years before World War II. These guns were used on all Condottieri-class light cruisers except the Duca degli Abruzzi-class.

The Model 1926 was designed and manufactured by Ansaldo, while the Model 1929 was manufactured by OTO Melara. Although both models of gun were similar in construction, components from each manufacturer were not fully interchangeable.

Commonalities:	Differences:
A tube	Thickness of liner
Jacket	Size of breech ring
Loose liner	Length of jacket
Horizontal sliding breech block

The gun mounts had electrically powered training, elevation, hoists, rammers and the guns shared a common cradle. Improvements in ammunition handling meant that the rate of fire for the Model 1929 was nearly twice as fast as the Model 1926. Loading was at +20° for the Model 1926, while the model 1929 could be loaded at any angle up to 45°. These guns suffered from dispersion problems so the original muzzle velocity of 1,000 metres per second (3,300 ft/s) was reduced to 850 metres per second (2,800 ft/s) with AP shells. Shell weight was also reduced from 50 kilograms (110 lb) to 47.5 kilograms (105 lb) in an attempt to resolve these problems, but were only partially successful. The main reason for the dispersion problem was because the guns were mounted too close together on a common cradle, which also complicated loading of the guns.

Naval Service

The majority of the Condottieri-classes had two superfiring twin-mount turrets forward and aft, except for the Duca degli Abruzzi-class which had different model guns and had two twin-turrets replaced with two triple-turrets. The Giussano-class carried Model 1926 guns, while the Cadorna-class, Montecuccoli-class and Duca d'Aosta-class carried Model 1929 guns. The mountings for the Giussano-class and Cadorna-class were found to be too lightly built for the recoil forces created by these guns.

Ammunition[edit]

Ammunition was of quick fire separate loading type. The AP projectile was 63 centimetres (2.07 ft) long with a cartridge case and a bagged charge which weighed 21.43 kilograms (47.2 lb).

The gun was able to fire:

• Armor Piercing (early) - 50 kg (110 lb)
• Armor Piercing (late) - 47.5 kg (105 lb)
• High Explosive - 44.3 kg (98 lb)

Media

See also

Visit:

• Naval Canons

Cruisers equipped with this gun:

• RN Eugenio di Savoia, 1943
• RN Raimondo Montecuccoli

External links

In-depth history of said gun:

• 152 mm/53 Italian naval gun Models 1926 and 1929

USSR naval cannons
20 mm	ShVAK
25 mm	2M-3
30 mm	AK-230 · 30 mm/54 AK-630 · 30 mm/54 AK-630M · BP "Plamya"
37 mm	37 mm/67 70-K · V-11
45 mm	45 mm/46 21-K · 45 mm/68 21-KM · 45 mm/89 SM-20-ZIF · 45 mm/89 SM-21-ZIF
57 mm	AK-725
75 mm	75 mm/50 Canet patt.1892
76 mm	34-K · 39-K · 76 mm/60 AK-176M · AK-726 · D-56TS · F-34 · Lender AA gun, pattern 1914/15
85 mm	85 mm/52 92-K · 85 mm/54.6 ZIS-C-53 · 90-K
100 mm	100 mm/56 B-34 · 100 mm/70 SM-5-1 · Minizini
102 mm	Pattern 1911
120 mm	120 mm/50 pattern 1905
130 mm	130 mm/55 pattern 1913 · 130 mm/58 SM-2-1 · B-13
152 mm	152 mm/57 B-38
180 mm	180 mm/57 B-1-P · 180 mm/60 B-1-K
305 mm	12-inch/52 pattern 1907 · 305 mm/54 B-50
356 mm	14-inch/52 pattern 1913 (356 mm)
	Foreign:
40 mm	2pdr QF Mk.IIc (Britain) · Skoda (Czechoslovakia)
47 mm	3 pdr QF Hotchkiss (Britain)
76 mm	76 mm/40 Ansaldo mod.1917 (Italy)
88 mm	SK C/30 (Germany)
120 mm	120 mm/50 Mk.4 Bofors M1924 (Sweden) · 120 mm/50 O.T.O. Mod.1933 (Italy)
152 mm	152/53 mm O.T.O. Mod.1929 (Italy)
320 mm	320 mm/44 Ansaldo model 1934 (Italy)