Rheinmetall heavy Minenwerfer

(old pattern)

 

 

 

 

German designation :

25cm sMW a/A

Calibre :

250mm L/3

Weight of the barrel :

148 kg

Weight of the carriage :

152 kg

Weight of the platform :

232 kg

Weight in action :

660 kg

Weight in marching order :

955 kg

Barrel length :

0.762 m

Barrel grooves

number :

6

width :

34.44 mm

Height of line of fire :

1315 mm

Propellant :

230 g / 170 g

Long shell

weight :

97 kg bursting charge : 50 kg

muzzle vel. :

64 m/s

max. range :

200 m / 563 m

Short shell

weight :

70 kg

charge :

25 kg

muzzle vel. :

73 m/s (with the lowest charge)

56 m/s (with the highest charge)

max. range :

200/750 m (900 m with black powder)

Max. range :

150/563 m

Elevation :

+ 75 / + 45

Traversing angle :

20 / 360

Recoil :

240 mm

Track :

1.009 m

Rate of fire :

20 rounds per hour

Personell required :

21 men

Remarks :

Introduce into the German Army in 1910. It fired also a gas shell, the lethal D-Stoff (with Phosgene).