Canon de 340 mm Modèle 1887 gun

Canon de 340 mm Modèle 1887
Canon de 340 mm Modèle 1887
Type	Naval gun
Place of origin	France
Service history
Used by	France
Wars	First World War
Specifications
Mass	61.66 t (60.69 long tons; 67.97 short tons)
Barrel length	14.133 metres (46 ft 4 in) (42 caliber)
Shell	Separate-loading, bagged charge
Shell weight	490 kg (1,080 lb) (APC shell)
Caliber	340 mm (13.4 in)
Elevation	−4° to +10°
Rate of fire	1 round per four minutes
Muzzle velocity	740 m/s (2,400 ft/s)
Maximum firing range	10,900 m (11,900 yd)

The Canon de 340 mm Modèle 1887 was a heavy naval gun used as the main armament of several ships of the Marine Nationale (French Navy) before World War I. It equipped the French battleship Brennus and the coast-defense ships Jemappes and Valmy.

Ammunition

APC (Armor-piercing, Capped) - 490 kg (1,080 lb)
SAPC (Semi-Armor-piercing, Capped) - 490 kg (1,080 lb)
CI (Cast iron) - 420 kg (930 lb)

Notes

References

Caresse, Philippe (2019). The French Battleship Brennus. Warship 2019. Oxford, UK: Osprey Publishing. pp. 29–46. ISBN 1-84486-041-8.
Friedman, Norman (2011). Naval Weapons of World War One. Barnsley, UK: Seaforth Publishing. ISBN 978-1-84832-100-7.

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French naval weapons of the First World War
Battleship primary armament	274 mm/40 Modèle 1893/1896 305 mm/45 Modèle 1887 305 mm/40 Modèle 1893/96 305 mm/45 Modèle 1906 340mm/28 Modèle 1881 340 mm/42 Modèle 1887 340 mm/45 Modèle 1912
Battleship secondary armament	47 mm/40 Modèle 1885 47 mm/50 Modèle 1902 57 mm/40 Modèle 1885 75 mm/62 Modèle 1908 75 mm/34 Modèle 1915/1916/1917 138 mm/55 Modèle 1910 164 mm/45 Modèle 1887 164 mm/45 Modèle 1893 194 mm/40 Modèle 1893-1896 240mm/50 Modèle 1902 274 mm/45 Modèle 1887/1893
Cruiser primary armament	164 mm/45 Modèle 1887 164 mm/45 Modèle 1893 194 mm/45 Modèle 1887 194 mm/40 Modèle 1893-1896 194 mm/50 Modèle 1902
Cruiser secondary armament	100 mm/45 Modèle 1891 138 mm/45 Modèle 1893 164 mm/45 Modèle 1887 164 mm/45 Modèle 1893
Destroyer and Aviso Primary armament	65 mm/50 Modèle 1891 100 mm/45 Modèle 1891 138 mm/45 Modèle 1893 138 mm/55 Modèle 1910
Anti-aircraft weapons	8 mm/50 Modèle 1914 57 mm/40 Modèle 1902