340mm/28 Modèle 1881 | |
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![]() A 340mm/28 Modèle 1881 aboard the Magenta | |
Type | Naval gun |
Place of origin | France |
Service history | |
In service | 1881-1922 |
Used by | France |
Specifications | |
Mass | 52.2 t (51.4 long tons; 57.5 short tons)[1] |
Length | 9.7 m (32 ft) L/28.5 calibres[1] |
Shell | Separate loading bagged charges and projectiles |
Shell weight | AP: 420.0 kg (925.9 lb) Common: 350.0 kg (771.6 lb)[1] |
Calibre | 340 mm (13 in) |
Breech | Interrupted screw |
Muzzle velocity | 600 m/s (1,969 ft/s)[1] |
The 340mm/28 Modèle 1881 gun was a heavy naval gun of the French Navy.
History
The type was used in single mountings on the ironclads of the Marceau class, and on the Hoche.
Railway guns
Canon de 340 modèle 1881/84 à glissement | |
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Type | Railway gun |
Place of origin | France |
Service history | |
In service | 1919-? |
Used by | ![]() |
Production history | |
Designer | Schneider |
Designed | 1917 |
Manufacturer | Schneider |
Produced | 1918 |
No. built | 8 |
Specifications | |
Mass | 187 t (184 long tons; 206 short tons) |
Barrel length | 9.7 m (32 ft) L/28.5 calibres[2] |
Shell | Separate loading bagged charges and projectiles |
Shell weight | 430 kg (950 lb) |
Caliber | 340 mm (13 in) |
Breech | Interrupted screw breech[2] |
Recoil | Carriage recoil |
Carriage | Two six-axle bogies |
Elevation | +3° to +40° |
Traverse | None |
Rate of fire | 1 round every five minutes |
Muzzle velocity | 430 m/s (1,400 ft/s) |
Maximum firing range | 19 km (12 mi)[2] |
Eight guns were converted from naval use to railway guns by Schneider and designated Canon de 340 modèle 1881/84 à glissement. The conversions were ordered during 1917 but they weren't delivered until January 1919 after the war had ended. The guns were suspended from two six-axle rail bogies and used carriage recoil known as the glissement system. The guns had no traverse mechanism so aiming was done by drawing the guns across a section of curved track.[3]
See also
Weapons of comparable role, performance and era
- BL 13.5 inch naval gun Mk I – IV : British equivalent