Krupp 9cm field gun

 

 

 

 

 

Bulgarian designation :

9-см недалнобойно полско оръдие “Круп” обр. 1867 г.

German designation :

9cm-Stahlkanone C/61

Calibre :

91.5mm L/22.6

Weight of the barrel :

425 kg

Weight of the breech-block :

32.2 kg

Weight of the carriage :

546 kg

Weight in action :

971 kg

Weight in marching order :

2262 kg

Weight of ammunition wagon :

2722 kg

Barrel length :

2.04 m

Length of the bore :

1819 mm

Barrel grooves

number :

16

depth :

15.5 mm (at breech) / 11.5 mm (at muzzle)

width :

2.5 mm (at breech) / 6.5 mm (at muzzle)

twist :

4530 mm – 50 calibres

Battering charge :

0.6 kg of black powder (Grobkörniges Art.-Pulver)

Shell

weight :

6.9 kg : charge : 250 g

max. range :

3440 m

Shrapnel

weight :

6.91 kg

170 bullets x 17 g

max. range :

2200 m

Case shot

weight :

5.25 kgzinc balls x 86 g

max. range :

500 m

Muzzle velocity :

322 m/s

Length of the line of sight  :

937 mm

Elevation :

+ 15° / - 8°

Ammunition :

gun carriage – 1 case shot, gun limber – 38, wagon limber – 36, wagon body – 63

Remarks :

Old Turkish steel gun, cylindro-prismatic wedge breech mechanism. It was almost identical to the gun adopted by the Prussian army, except that the latter had a piston breech mechanism. In 1864-74 Turkey bought from Krupp 461 of these guns, some of them were captured by the Russians in 1877-78 and later delivered to the Bulgarian Army. Serbia bought 6 of these guns in 1874.