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Scientific American Supplement, No. 711, August 17, 1889 by Various
page 20 of 146 (13%)
range each of 260 degrees at bow and stern--i.e., 130 degrees on
either of the broadsides. The weight of the barrel of the gun is 25
tons, that of the steel shell 215 kilogrammes (about 430 lb.), that of
the brown powder charge 100 kilogrammes; initial velocity of
projectile, 610 meters; penetration, 0.524 meter iron; longest range,
17 kilometers (about 10½ English miles); range at 15 deg. elevation,
10 kilometers. The six 15-centimeter guns are placed in a kind of
machicouli arrangement in two tiers on each of the broadsides, so that
always four guns can fire in the direction of the keel to the front
and rear. The weight of the barrel of the gun is each six tons, that
of the steel shells 51 kilogrammes, that of the charge 22 kilogrammes;
initial velocity, 610 meters.

The 11 quick-firing guns are partly placed along the broadsides,
partly in the masts, of which there are two. The triple expansion
engines, having each a bronze screw of 4.42 meters diameter, with
three blades and a rise of 6.3 meters, make with natural draught 105
revolutions, and with forced draught 120. The pumping apparatus are
able to lift in one hour 400 tons of water. The front boiler room
contains a special cylindrical boiler for the working of the
electrical apparatus, for hydraulic pumps of the artillery service,
for anchor windlasses, ventilators, fire engines, etc. The whole
engines weigh 890 tons. The bunkers have a capacity for 660 tons of
coal, which allows for a run of 4,500 sea miles.

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