8-inch mortar M1877 | |
---|---|
Type | Coastal artillery Fortress gun Siege gun |
Place of origin | Russian Empire |
Service history | |
In service | 1891-? |
Used by | Russian Empire German Empire Bulgaria Finland |
Wars | Russo-Japanese War World War I |
Production history | |
Designer | Obukhov State Plant |
Designed | 1877 |
Manufacturer | Obukhov State Plant Motovilikha Plants[1] |
Produced | 1891[2] |
Specifications | |
Mass | Travel: 8,500 kg (18,700 lb) Combat: 5,856 kg (12,910 lb) |
Barrel length | 3.4 m (11 ft) L/17 calibers |
Shell | Separate-loading, bagged charges and projectiles. |
Shell weight | 78–90 kg (172–198 lb) |
Caliber | 203 mm (8 in) |
Breech | Horizontal sliding-block |
Recoil | Hydro-gravity |
Carriage | Garrison mount |
Elevation | 0 to +42°[2] |
Traverse | Dependent on mount |
Rate of fire | 1 round every 3 minutes |
Muzzle velocity | 400 m/s (1,300 ft/s) |
Maximum firing range | Russian ammunition: 6 km (3.7 mi) German ammunition: 9.6 km (6 mi)[2] |
The 8-inch mortar M1877 was a Russian 203 mm (8 in) coastal, fortress and siege mortar that was used in the Russo-Japanese War and World War I.