Technical specifications
BALLISTIC PARAMETERS
| Maximum firing range (HEF projectile), m
|
15300
|
| HEF projectile muzzle velocity, m/s
|
690
|
| HEF projectile weight, kg
|
21.76
|
| HEF projectile full charge weight, kg
|
3.8
|
| Maximum propellant gas pressure, MPa
|
250
|
| Muzzle velocity of spinning BP1 hollow-charge projectile, m/s
|
740
|
| Weight of BP1 projectile, kg
|
14.08
|
| Point-blank range when firing with BP1 projectile and target height is 2 m, m
|
850
|
| Muzzle velocity of non-spinning BK hollow-charge projectile, m/s
|
724
|
| BK projectile weight, kg
|
18.2
|
| Point-blank range when firing with BK projectile and target height is 2 m, m
|
780
|
DESIGN SPECIFICATIONS
| Number of grooves in barrel lead-in section
|
36
|
| Twist (progressive), deg:
|
|
| - in front barrel lead-in section
|
3°57’
|
| - in muzzle
|
7°101’
|
| Maximum elevation, deg
|
70
|
| Maximum depression, deg
|
–7
|
| Traverse, deg
|
360
|
| And when barrel is between:
|
|
| - mobile trails
|
66
|
| - immobile and mobile trails
|
±29
|
| Fire line height, mm
|
900
|
| Normal recoil length, mm
|
740 – 930
|
| Maximum recoil length, mm
|
940
|
| Howitzer length in travel position, mm
|
5400
|
| Howitzer width in travel position, mm
|
1950
|
| Howitzer height in travel position, mm
|
1860
|
| Howitzer height in combat position when elevation angle is 0°, mm
|
1420
|
| Track width, mm
|
1850
|
| Clearance, mm
|
325
|
WEIGHT SPECIFICATIONS
| Howitzer weight in combat position, kg
|
3200
|
| Howitzer weight in travel position, kg
|
3290
|
| Weight of recoil parts, kg
|
1230
|
| Weight of swinging part, kg
|
1500
|
| Weight of spinning part, kg
|
2550
|
| Barrel weight, kg
|
1050
|
OPERATION SPECIFICATIONS
| Time of transfer from travel to combat position (vice versa), min
|
1.5 – 2.5
|
| Firing rate, rpm
|
6 – 8
|
| Maximal transportation, km/h:
|
|
| - while using airless tires | up to 6
|
| - while using pneumatic tires
|
up to 80
|
| Crew, persons
|
7
|
