Brief history In the 1980s, the People's Republic of Poland modernized Soviet artillery equipment used since World War II. Among the modernized types was the 122-мм корпусная пушка обр. 1931/37; гг. in Poland designated as: 122 mm armata wz. 1931/37. The reconstruction changed or modified the braking system and the chassis, including its lighting. To increase the ground clearance, tyres identical to the KrAZ-255B tractor-truck were used. The weapon received a new designation 122 mm armata wz. 1931/37/85 when it was assigned to the Polish Army. About 63 pieces were modernized. On Poland's accession to NATO in 1999, this gun was not included in the number of weapons in active service.
LWP in 1950-1985, deployment of 122 mm guns wz. 1931/37 and wz. 1931/37/85: 5DP from Sulęcin: 24 pieces 14BAC from Bolesławiec: 12 pieces 2BPdes from Dziwnów: 9 pieces 3BPdes from Kołobrzeg: 9 pieces 5BPdes from Gdańsk: 9 pieces
Basic data - Soviet Army name: 122-мм пушка образца 1931/37 года - Abbreviation SA: 122-мм П обр. 1931/37 гг. - name of the Polish modernization: 122 mm gun wz. 1931/37/85 - Polish abbreviation: unknown - modernisation in the years: 1980-1985 - decommissioning: unknown
Crew: 9 persons
Weapons - Type: cannon, towed (not self-propelled) - purpose: for firing at fixed and moving targets - calibre: 121,92 mm - overall barrel length: 5650 mm (d/46,3) - length of threaded barrel: undetermined - number of grooves in the barrel: undetermined - Barrel slide length: 870-1400 mm - fire height of the weapon: undetermined - weight of barrel with breech: 2380 kg - Aim: -2° to +65° - Sight: 2x 29°
Dimensions - weight of chassis: undetected - tyre size: 2 pieces 12.00-20" - weight of weapon in firing position: not found - weight of weapon in marching position: not found - length of weapon in firing position: undetermined - width of weapon in marching position: approx. 2345 mm - height of weapon in marching position: about 2270 mm
Performance - range under direct fire: 825 to 975 m - Max. range: 20400 m - rate of fire: 2 to 4 rounds per minute - Max. towing speed on road: 50 km/h - Max. towing speed on drivable terrain: 30 km/h - towing speed in difficult terrain: about 10 km/h - Standby firing time: 8 to 10 minutes - Getting into marching position: 8 to 10 minutes
Ammunition - 121,92x785 R, split ammunition - All types of ammunition for this model of weapon, used in the armies of the Warsaw Pact - muzzle velocity: 655 m/sec., other sources indicate up to 670 m/sec.
Notes DP - Dywizja Piechoty BAC - Brygada Artylerii Ciężkiej BPdes - Brigade of Anti-Submarine Warfare, later Brigade of Coastal Defence (BOW) LWP - Polish People's Army
URL : https://www.valka.cz/POL-122-mm-armata-wz-1931-37-85-t46427#181144
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