State-owned Foreign Trade Unitary Enterprise "Belspetsvneshtechnika"

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Государственное внешнеторговое
унитарное предприятие
"Белспецвнештехника"

Адрес:

Республика Беларусь, 220103
г. Минск, ул. Калиновского, д. 8

Тел: +375 (17) 269-63-33

Факс: +375 (17) 269-63-43

E-mail: mail@bsvt.by

Время работы предприятия:

Понедельник - пятница
8.30-17.30

Обед:

13.00-13.45

Repair and upgrade of 122 mm howitzer D–30 up to the level of D–30А

D-30А 122 mm towed howitzer is designed to:
• Suppress (destroy) enemy manpower, non-sheltered or located inside field type shelters;
• Suppress (destroy) enemy infantry fire weapons;
• Destroy pillboxes, earth-and timber bunkers and other enemy constructions;
• Fight with artillery, tanks and other light mechanized enemy means;
• Make lanes through minefields and wire obstacles.




D-30А comprises of:
• 122 mm separate case rounds with HEF, hollow charge and special projectiles;
• Aiming devices;
• Transport vehicles. Tracked (АТ-P, АТ-L) and wheeled (ZIL-151, ZIL-157, ZIL-131) tractors are used as transport vehicles. Other tractors having the same load capacity can be also used.

Howitzer consists of the following main parts:
• Barrel and breech group;
• Counter-recoil mechanisms;
• Carriage.

List of works on modifying D-30 howitzer to D-30A level:
• Overhaul of howitzers according to technical requirements for 122 mm howitzer D-30А-2А18М.UK-LU;
• Replacement of mechanical jack with a hydraulic one;
• Modification, brake system mounting;
• Replacement of electrical lights;
• Replacement of airless tires with pneumatic ones.

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