Krupp 120mm gun M. 1882
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Bulgarian designation : |
120-мм
нескорострелно
оръдие
Д-25 |
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Krupp designation : |
12cm schwere Belagerungskanone C/80 |
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Calibre : |
120.3mm L/25 |
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Weight of the barrel : |
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Weight of the breech-block : |
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Weight of the carriage : |
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Weight in action : |
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Weight of the platform : |
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Weight of the limber : |
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Barrel length : |
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Length of the bore : |
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Barrel grooves |
number : |
32 |
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depth : |
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width : |
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Length of twist : |
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Bulgarian ammunition |
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Battering charge : |
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1.1 kg nitroglycerine powder 180 + 90 x 3 x 2 D.R.P. + 30 g of
black powder |
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Shell |
weight : |
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max. range : |
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H.E. Shell |
weight : |
16 kg – 1190
g of Füllpulver 60/40 |
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max. range : |
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Shrapnel |
weight : |
16 kg – 570
lead bullets x 13 g |
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max. range : |
6000 m |
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Muzzle velocity : |
460 m/s |
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Remaining velocity : |
220 m/s a
7500 m |
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Turkish ammunition |
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Battering charge : |
1.2 kg
yellowish pyroxilin powder 190 x 3 x 2 + 30 g of
black powder |
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1.25 kg
greenish pyroxilin powder 190 x 3 x 2 + 30 g of black
powder |
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Shell |
weight : |
17.5 kg –
charge: 3.5 g of black powder (Grobkörniges Art.-Pulver) |
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max. range : |
7500 m |
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Muzzle velocity : |
425 m/s |
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Elevation : |
+ 30° / -
12° |
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Remarks : Slow firing
heavy hooped gun, with cylindro-prismatic wedge breech
mechanism. On either side of the carriage there were two small platforms on
which the gunners climbed to load and level the gun. Wooden wedges, weighting
300 kg each, were placed behind the wheels for counter-recoil. These guns
were equipped with quadrant level ¼ circle with goniometer graduated in millièmes.
Six guns were given by the Russian Army in 1882;
three more guns were captured during the Balkan War. After the Balkan Wars,
the Turkish shells captured in great number at Odrin,
were assigned to the Bulgarian batteries to be temporarily used (Order on
Artillery No. 30/23.07.1915). |
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