Brisanzschrapnell c/10 C. It was composed by two distinct parts : the Schrapnellteil, an ordinary shrapnel with rear burster (S), and the Granatteil, a thick-walled high explosive head (O). The cartridge was charged with smokeless powder and was equipped with a screw primer.
Granatteil. The head contained, besides a little bursting charge (o), the
detonator (d) and a special quadruple acting fuze (f), which could work in four
different ways : as time or percussion fuze for shrapnel, and as percussion
fuze with or without delay for H.E. shell. The head was forced into the body
and not screwed in it, to make easier and more regular its detachment from
the shrapnel. The size of the H.E. shell was greatly reduced in order to make
room for the shrapnel. The smoke-producing charge was removed, making
impossible to observe the fall of the shrapnel. The bursting charge (o),
composed by only
Schrapnellteil. The shrapnel was the main part of the
projectile and was composed as usually by : steel body with copper driving
band, steel diaphragm, steel central tube, lead bullets and the base bursting
charge. The bullets were not packed in colophan, like in ordinary shrapnel,
Doppel Zünder c/1907. The special quadruple acting fuze, [see Brisanzschrapnell c/10 B] introduced in 1907 (D.R.P. 200.313, 15 September 1907), was made of aluminium. It had control a plate (Schaltplatte) (I), mobile around the shell axis, inserted between the girdle of the fuze (G) and the bottom composition ring (a). It had a hole (e), filled with pressed black powder, drilled on it. Two channels were bored in the girdle : one (h) conducted to the central tube of the shrapnel, the other (k) to the detonator cup. With percussion fire, the percussion mechanism (P) acted directly on the detonator (d) and the projectile was employed as H.E. shell. With time fire, if the hole (e) of the plate was in front of the channel (h), the flame was transmitted to the shrapnel charge (s), if it was in front of the channel (k), it was transmitted to the shell charge (o) by means of the detonator (d). The fuze was also equipped with a delay mechanism. The fuze was equipped with a safety device against the bursting into the bore. It was composed by a pellet of black powder (q), placed in front of the firing pin of the time fuze. When the shell was fired, the firing pin ignited the primer, but the flame was transmitted to the bottom composition ring, only after the burning of the pellet of black powder.
Operation of the Brisanzschrapnell. When burst in air, the flash from the fuze was transmitted round the high explosive buster to the base charge of the shrapnel. The bullets were blown out in the usual way and the head went on and detonated on impact, affording a valuable means of observing and correcting the trajectory of the shell.
When burst as percussion shrapnel the high explosive charge stored in the head detonated and the bullets and the splinters were blown out laterally. The Trotyl filled between the bullets simply exploded, but if the shell hit anything, the detonation of the high explosive buster in the head was transmitted to Trotyl and the shell acted as a mine shell. The head buster served also to keep the bullets off the ground and rendered the projectile more effective than the ordinary shrapnel when it burst on graze.
percussion fire, when the Brisanzschrapnell
burst, the Schrapnellteil produced
on the average 68 splinters weighting more than