Large Torpedo. Small Torpedo.
lbs. lbs.
Glyoxilin 47 16
Schultze’s blasting powder 60 22
Compressed gun-cotton 60 22
Picric powders 73 26
Rifle grained powder 76 27
Horsley’s original 80 28
Horsley’s blasting powder 85 30
Nobel’s dynamite 100 35
The above must be considered an approximation, since much will depend
upon the labour expended in packing the torpedo.
Some of the powders named have not yet been manufactured on a large scale.
The priming case is made of stout sheet copper, and contains a large
bursting charge, which may be either rifle grained powder or a stronger
explosive, which is recommended.
[Illustration: (D)