Description

BALLISTIC DATA
Caliber: 122 mm
Muzzle velocity:
HE shell T-462 (full charge): 730 m/s
HE shell T-462 (reduced charge, variable): (276 – 565) m/s
Maximum range:
HE shell (T-462): 15,300 m
HE shell (M-60): 17,000 m
Shell mass:
HE shell: 21.76 kg
Propellant charge mass (full charge): 3.08 kg

DATA ON DIMENSIONS
Length of howitzer in travelling position: 5330 mm
Width of howitzer in travelling position: 2130 mm
Height of howitzer in travelling position: 1950 mm
Width of howitzer in combat position: 7000 mm
Height of line of fire: 940 mm
Height of line of sight: 1420 mm
Minimum distance between support points of trail legs (in combat position): 5600 mm
Minimum distance between support points of wheels (in combat position): 1855 mm
Track dimension: 1930 mm

DESIGN DATA
Barrel length with muzzle brake: 4725 mm (38.7 clb)
Barrel length without muzzle brake: 4550 mm (37.3 clb)
Length of rifled part: 3580 mm
Powder chamber length: 610 mm
Number of rifling grooves: 36
Field of action traverse: -70° to +70°
Field of action elevation: -7° to +70°
Angle between wheels and the trails in combat position: 68°
Barrel position in combat position: under axle
Length of recoil: (740 – 940) mm
Max. allowed recoil length: 980 mm

MASS DATA
Mass of howitzer in combat position: 3850 kg
Mass of howitzer in travelling position: 3450 kg
Mass of barrel: 1300 kg
Mass of breech with mechanism parts: 210 kg
Mass of cradle: 280 kg
Mass of upper carriage with cradle: 950 kg
Mass of top carriage: 300 kg
Mass of travelling carriage with fixed trail legs: 1730 kg
Mass of shield: 90 kg
Mass of towing lunette (gun port): 190 kg
Mass of cradle with barrel: 1580 kg

SERVICE DATA
Rate of fire: (6 – 8) rds/minute
Time of transition from travelling into combat position and vice versa: (1.5 – 2.5) minutes
Aimed speed of round against “tank” target: 12 rds/min
Pressure force of spade against ground (howitzer in travelling position): 6.0 kN
Pressure force of towing lunette against the hook of towing vehicle: 1.80 kN