SHOWING THE PENETRATING ENERGY, IN FOOT-TONS PER INCH
OF SHOTS CIRCUMFERENCE, OF FOREIGN ORDNANCE. AT RANGES
FROM 70 YARDS FROM THE MUZZLE OF THE GUN TO 2000 YARDS.
PART III.
TORPEDOES.
The torpedoes used by and against the different navies of the world may be classed under two general heads, viz., offensive and defensive.
Offensive torpedoes may be classified in accordance with the manner in which they are used, as Locomotive, Towing, Spar, and Drifting.