Canon de 340 mm Modèle 1887 gun

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.

Canon de 340 mm Modèle 1887
TypeNaval gun
Place of originFrance
Service history
Used byFrance
WarsFirst World War
Specifications
Mass61.66 t (60.69 long tons; 67.97 short tons)
Barrel length14.133 metres (46 ft 4 in) (42 caliber)

ShellSeparate-loading, bagged charge
Shell weight490 kg (1,080 lb) (APC shell)
Caliber340 mm (13.4 in)
Elevation−4° to +10°
Rate of fire1 round per four minutes
Muzzle velocity740 m/s (2,400 ft/s)
Maximum firing range10,900 m (11,900 yd)

Ammunition

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Notes

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References

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