The Chemistry of Powder and Explosives - Sciencemadness Dot Org

BOMBSHELLS 101
the short pieces separately. Different size tubes are often used
for the fuses of different size shells; those for a 4-inch shell
(that is, for a shell to be shot from a 4-inch mortar) are commonly
made from tubes 5/16 inch in internal diameter and %
FIGURK 33 Bombshells for 4- iiud 6-incli Mental-* (Coiutc-y N.itional
Fireworks Company and the Bo.ston Globi )
inch in external diameter. Fuses are generally attached to the
front end of the bombshell. The forward-pointing end of the
tube, which is outside the shell and receives the fire, is filled flu«h
with the composition The other backward-pointing end, inside
the shell, is empty of composition for % inch of its length; a