WEG MediaWiki

M1931 (A-19) Russian 122mm Towed Gun

tiers
false
false
false
true
categories
"WEG"
"Artillery"
"Gun/Howitzer Artillery Systems"
"Towed Gun/Howitzer Artillery Systems"
"Russia (RUS)"
"PRO_North Korea (Democratic People's Republic of Korea)"
"Land"
"Tier4"
notes"122 mm corps gun M1931/37 (A-19) (Russian: 122-мм корпусная пушка обр. 1931/1937 гг. (А-19)) was a Soviet field gun developed in late 1930s by combining the barrel of the 122 mm gun M1931 (A-19) and the carriage of the 152 mm howitzer-gun M1937 (ML-20). The gun was in production from 1939 until 1946. It saw action in World War II (primarily with corps and RVGK artillery of the Red Army) and remained in service for a long time after the end of the war. Vehicle-mounted variants of the gun were fitted to the IS-2 and IS-3 tanks of the Iosif Stalin series of tanks and the ISU-122 self-propelled gun. In 1936 the Red Army adopted the 122 mm gun M1931, also known as A-19. Unlike earlier ordnance pieces used by the Red Army, it had split trail carriage with suspension, and consequently improved mobility and traverse. The carriage of M1931 had a number of shortcomings though. The elevation mechanism was slow and unreliable; solid-tired wheels hindered mobility to some extent; there were technological problems in carriage production. Soon after the M1931, the Red Army received another artillery piece in form of the 152 mm howitzer-gun M1937 (ML-20), developed at the No. 172 Plant, under F. F. Petrov. This led to an upgrade of the M1931, handled also by Petrov's design bureau. The barrel of the M1931 was placed on the carriage of a ML-20. The improved gun successfully underwent trials in September–October 1938 and on 29 April 1939 was adopted as 122 mm corps gun M1931/37. Unusually, the new variant, like the old one, was referred to as A-19. The M1931/37 was manufactured by the Barrikady Plant in Stalingrad (1939–41), No. 172 Plant (1941–46). The number of M1931/37s manufactured can be estimated at about 2,450, not including those mounted on vehicles. Like barrel of late production M1931, the barrel of the M1931/37 was of loose liner construction, and consisted of liner, jacket and screwed-upon breech. The breechblock was of interrupted screw type, similar in construction to that of the 152 mm howitzer M1910/37. Recoil system consisted of hydraulic recoil buffer and hydro-pneumatic recuperator, both located inside the cradle under the barrel. The gun had split trail carriage adapted from the 152 mm howitzer-gun M1937 (ML-20). The carriage was fitted with leaf spring suspension and metal wheels with pneumatic tires. The carriage also featured an equilibrator. The shield gave the crew some protection from small arms and shell fragments. The M1931/37 was transported as a single piece, with barrel pulled back. It was permitted to tow the gun with barrel in its normal position, but for short distances only and with speed of no more than 4–5 km/h. Several types of artillery tractors were used: S-2 Stalinets-2, Komintern and, from 1943, Ya-12."
dateOfIntroduction1931
countryOfOrigin"Russia (RUS)"
proliferation"North Korea (Democratic People's Republic of Korea)"
selectedregions
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checkedregions
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checkedcountries
"North Korea (Democratic People's Republic of Korea)"
dis
name"HOW M1931 37 A 19 TWD 122MM"
string"01.01.222.005.042.000.000"
images
"M1931.37_(A-19)(A).jpg"
"M1931.37_(A-19)(B).jpg"
"M1931.37_(A-19)(C).jpg"
sections
name"System"
properties
name"Alternative Designation"
value"M1931; M1937; A-19"
name"Type"
value"Towed Gun"
name"Caliber"
value"122mm"
name"Crew"
value"9"
name"Carriage"
value"Split trail"
name"Breech"
value"interrupted screw"
name"Recoil"
value"hydro-pneumatic"
name"Elevation"
value"-2° to 65°"
name"Traverse"
value"58°"
name"Rate of Fire"
value"3-4 rounds per minute"
name"Muzzle Velocity"
value"806 m/s"
name"Maximum Firing Range"
value"20.4 km"
name"Emplacement Time"
value"Under 5 Minutes"
name"Displacement Time"
value"Under 5 Minutes"
name"Dimensions"
properties
name"Length"
value"8.725 m"
name"Barrel Length"
value"Bore: 5.4 m (17 ft 9 in) L/45 Overall: 5.6 m (18 ft 4 in) L/46.3"
name"Width"
value"2.345 m"
name"Height"
value"2.27 m"
name"Weight, Combat"
value"7,117 kg"
name"Weight, Traveling"
value"7,907 kg"
name"Ammunition"
sections
name"Ammunition (Option 1)"
properties
name"Name"
value"BR-471"
name"Type"
value"АРНЕ"
name"Caliber"
value"122mm"
name"Projectile Weight"
value"25 kg"
name"Muzzle Velocity"
value"800 m/s"
name"Maximum Range"
value"4,000 m"
name"Armor Penetration"
value"INA"
name"Ammunition (Option 2)"
properties
name"Name"
value"OF-471H"
name"Type"
value"HE-Fragmentation, gun"
name"Caliber"
value"122mm"
name"Projectile Weight"
value"25 kg"
name"Muzzle Velocity"
value"800 m/s"
name"Maximum Range"
value"4,000 m"
name"Armor Penetration"
value"INA"
name"Ammunition (Option 3)"
properties
name"Name"
value"H-462"
name"Type"
value"Chemical, howitzer"
name"Caliber"
value"122mm"
name"Projectile Weight"
value"21.8 kg"
name"Muzzle Velocity"
value"705 m/s"
name"Maximum Range"
value"19,800 m"
name"Armor Penetration"
value"INA"
name"Fire Control"
properties
name"Computerized FCS"
value"No"
name"Direct Fire"
value"Yes"
name"Indirect Fire"
value"Yes"
name"Collimator"
value"INA"
variants
name"A-19S"
notes"Slightly modified variant of A-19 for use in ISU-122 self-propelled gun."
name"D-25"
notes"In 1943 a tank gun based on the A-19 was developed for the new Iosif Stalin tank, in particular because the existing 85 mm tank gun utilized in the early prototypes was deemed insufficient; the resulting prototype was the IS-122. There were, however, safety concerns as the muzzle brake on the gun exploded, nearly killing the attending Marshal Kliment Voroshilov. The fact caused some initial resistance to the adoption of the gun, but Stalin supported the decision to arm the tank named after him with a 122 mm gun. The gun was redesigned to address the safety issue and the resulting weapon was named D-25, analogous to the earlier D-5T 85mm gun."
name"D-25T"
notes"tank gun variant (T stands for tankovaya, ‘tank’ adj.) . In the last days of November 1943, Fyodor Petrov's artillery design team tried the D-25 122 mm corps gun on a mounting used for the D-5T 85 mm tank gun against a captured German Panther tank. Tests took place in the Kubinka proving grounds (about 60 km west of Moscow). Firing from a distance of 1200 m, the round pierced the front glacis, made its way through the engine block and penetrated the rear plate too. After the overwhelming success of this trial, necessary adaptations were made during the following weeks, and the model was accepted as the D-25T on 31 December 1943. Production started immediately, to equip the IS-2 tank."
name"D-25S"
notes"variant for use in late production ISU-122 self-propelled gun (S for samokhodnaya, ‘self-propelled’). The variant of ISU-122 armed with this gun was designated ISU-122S."
name"152 H 88-31"
notes"A Finnish modernization, involving the upgrading of the caliber to 152 mm."
name"122 mm armata wz. 1931/37/85"
notes"A Polish modernization."
type"WEG"
version1
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