Additional informations

 

 

I.

1. Weight of the gun with breech-block :

450 kg

2.  Breech preponderance :

54 kg

3. Calibre of the gun :

87 mm

4. Length of the line of sight :

1050 mm

5. One graduation of the sight is :

1/1000 of the line of sight lenght

6. Length of rifled section :

17.1 calibres = 1496 mm

7. Length of twist :

45 calibres = 3915 mm

8. Inclination of the grooves :

4°

9. Number of the grooves :

24

10. Average muzzle velocity :

460 m/s

11. Angle of departure :

22’ = 6.4 graduations

II.

1. Weight of the shell :

6.21 kg

2. Weight of the shrapnel :

7.1 kg

3. Weight of the bursting charge of the shell :

0.210 kg

4. Weight of the bursting charge of the shrapnel :

0.080 kg

5. Number of the bullets in the shrapnel :

180

6. Weight of the case shot :

6.7 kg

7. Number of the zinc balls in the case shot :

82

8. Weight of the battering charge :

1.5 kg of large-grain gunpowder

9. Size of the cartridge

diameter :

92 – 94 mm

length :

225 mm

III.

1. Carriage in horiz. position enables

depression :

8°

elevation :

24°

2. Pressure of trail on ground :

95 kg

 

table 1                   table 2                   table 3                   table 4