Krupp 150mm long heavy howitzer M. 1913

 

 

 

 

 

Bulgarian designation :

150-мм скорострелна гаубица Д-17 “Круп”

German designation :

15 cm lange schwere Feldhaubitze 13

Calibre :

149.7mm L/17

Weight of the barrel :

832 kg

Weight in action :

2250 kg

Barrel length :

2.550 m

Barrel grooves

number :

32

depth :

1.3 mm

width :

9.7 mm

Rifling

length :

11.7 calibres

twist :

progressive

inclination :

4° to 8°

Shield thickness :

3 mm

Cartridge

size :

152 x 113 x 170

weight :

1.8 kg

charge :

1.50 kg Würfelpulver + 20 g n.Gew.P. 71

1.56 kg Würfelpulver + 20 g n.Gew.P. 71

1.67 kg Würfelpulver + 20 g n.Gew.P. 71

590 g R.P. 109 + 780 g Würfelpulver + 20 g n.Gew.P. 71

Shells weight

 

15cm Gr. 88 :

41.9 kg (with Gr.Z. 82) – charge : 1.5 kg Grf. 88

 

42.3 kg (with Dopp. Z. 92) – charge : 1.5 kg Grf. 88

15cm Gr. 96 :

39.5 kg – charge : 7.3 kg Grf. 88

15cm Gr. 04 :

40.5 kg – charge : 4.73 kg Fp. 02

15cm Gr. 12 :

40.5 kg – charge : 6.1 kg Fp. 60/40

15cm Gr. 12 (verst.) :

40.5 kg – charge 4.5 kg / 4.6 kg Fp. 55/45 + Di. 60/40

15cm Gr. 12 n/A :

42 kg – charge : 6 kg Fp. 60/40

detonation charge : 60 g Grf. 88

42 kg – charge : 1.9 kg Fp. 60/40 + 4 kg dinitrobenzol

detonation charge : 60 g Grf. 88

15cm Gr. 14 :

42 kg – charge : 2.5 kg Fp. 60/40 + 195 g Grf. 88

15cm Gr. 14 A :

42 kg – charge : 1.5 kg Donarite or Westafalite

15cm Gr. 14 (H) :

43.44 kg

charge : 1.96 kg Fp. 55/45 and Di. 65/45 + 125 g Grf. 88

15cm Gr. 17

29 kg – charge : 3.2 kg

15 cm Brand-Gr. B :

42 kg – charge : 850 of celluloid + 300 g of black powder

Max. range

ordinary :

8200 m (time) / 8500 m  (percussion)

mit Haube :

8800 m

incendiary :

7450 m

Muzzle velocity :

1st charge : 192 m/s

7th charge : 349 m/s

8th charge : 365 m/s (377 m/s with Haubengranate)

Elevation :

+ 45° / - 0°

Traversing angle :

5°

Transport :

drawn by six horses in one single load

Remarks :

Quick firing heavy field howitzer, with hydro-pneumatic recoil system. It could fire also various patterns of gas shells. From 1917 on Krupp and Rheinmetall manufactured 1550 of these howitzers. At the end of 1917 3rd battery of 3rd heavy artillery regiment received 4 of these howitzers.