90 mm/50 model 1926 (90 mm)

A battery of the 90 mm/50 model 1926 (90 mm) with the gunner visible

Description

The 90 mm/50 Modèle 1926 is a light dual-purpose gun, designed in 1926, and entered service in 1931 as a replacement for the 75 mm/50. It was designed to deliver a long-range barrage of flak fire, protecting the fleet from level bombers and torpedo planes long before they became a real threat. Despite its higher calibre, the 75 mm could be replaced in a 1:1 ratio with the 90 mm, and the new gun maintained the same rate of fire.

The 90 mm/50 model 1926 is best used as a dedicated secondary anti-aircraft gun. While it has the capability to engage surface targets, especially coastal boats, it is hindered by the lack of armour-piercing shells.

Vehicles equipped with this weapon

• Colbert
• Dupleix
• Emile Bertin

General info

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Available ammunition

Penetration statistics
Ammunition	Type of warhead	Penetration @ 0° Angle of Attack (mm)
		100 m	1,000 m	2,000 m	3,000 m	4,000 m	5,000 m
OEA Mle 1925 HE	HE	13	13	13	13	13	13
OEA Mle 1925 HE-TF	HE-TF	13	13	13	13	13	13

Shell details
Ammunition	Type of warhead	Velocity (m/s)	Projectile mass (kg)	Fuse delay (m)	Fuse sensitivity (mm)	Explosive mass (TNT equivalent) (g)	Ricochet
							0%	50%	100%
OEA Mle 1925 HE	HE	850	9.5	0	0.1	905	79°	80°	81°
OEA Mle 1925 HE-TF	HE-TF	850	9.5	0	0.1	905	79°	80°	81°

Comparison with analogues

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Usage in battles

Colbert firing broadside of its 90 mm/50 guns against surface target

The 90 mm/50 model 1926 is an excellent dual-purpose gun, able to engage even dive bombers thanks to its +80° vertical guidance. HE-TF rounds are the preferred first choice for the secondaries, as they maximise the chance of damaging an enemy aeroplane, either by a direct hit or shrapnel from a nearby explosion. HE-TF rounds can also be used against coastal vessels, as at short range they will function like regular HE shells, though switching to anti-aircraft armament can be a better choice when engaging small, manoeuvring torpedo boats.

The gun, lacking AP or SAP shells, will struggle to destroy heavier targets, such as destroyers or cruisers.

Pros and cons

Pros:

• Good targeting speed
• Large explosive filler

Cons:

• No access to AP or HE-VT shells

History

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Media

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See also

• 75 mm/50 model 1922 (Predecessor)
• 8.8 cm/76 SK C/32 (German equivalent)
• 100 mm/47 O.T.O. Mod. 1928 (Italian equivalent)
• 4 in QF Mark V (British equivalent)

External links

• [Wikipedia] Canon de 90 mm Modèle 1926
• [NavWeaps] France 90 mm/50 (3.5") Model 1926
• French Cruisers 1922-1956 by John Jordan & Jean Moulin, page 65

France naval cannons
37 mm	37 mm/50 model 1925 · 37 mm/50 model 1933
47 mm	3 pdr QF Hotchkiss
57 mm	57 mm/60 ACAD Mle 1951
75 mm	75 mm/50 Canet model 1891 · 75 mm/50 model 1922
90 mm	90 mm/50 model 1926
130 mm	130 mm/40 model 1919
138.6 mm	138.6 mm/55 model 1910 · 138.6 mm/40 model 1927 · 138.6 mm/50 model 1929 · 138.6 mm/50 model 1934 R1938
152 mm	152 mm/55 model 1930
155 mm	155 mm/50 model 1920
203 mm	203 mm/50 model 1924
305 mm	305 mm/45 model 1906-10
340 mm	340 mm/45 model 1912
	Foreign:
20 mm	2 cm/65 C/38 (Germany) · 2 cm/65 Flakvierling 38 (Germany) · 20 mm/70 Oerlikon Mk.II (USA/Britain)
40 mm	2pdr QF Mk.IIc (Britain) · 2pdr QF Mk.VIII (Britain) · Bofors L/60 Mark 2 (USA) · Bofors L/60 Mark 3 (USA)
87.6 mm	Ordnance QF 25pdr (87.6 mm) (Britain)
102 mm	4 in QF Mark V (Britain) · 4 inch/45 Mark XVI (Britain)
105 mm	SK C/33 AA (Germany)
128 mm	12.8 cm/45 SK C/34 (Germany)
150 mm	15 cm/48 KC/36 (Germany)