We learn from our foreign exchanges that experimental firing
has recently been conducted at Portsmouth with Captain Cole’s cupola vessel,
having two 100 pounders placed in a tower and firing at a target. The two 100-pounders were fired singly and
together and in quick firing six rounds were fired in as many minutes. The concussion from the discharge of the guns
was but trifling, and was, in fact found to be greater outside the shield than
within it. The smoke cleared off as
effectually and the guns, with their carriages, worked with the greatest
facility. The shield ship which is
proposed to build on this plan will have no masts, and when afloat will show to
the view above her deck merely her funnel and the tops of her shields. Cleared for action, the ship’s bulwarks are
thrown down all around here, level with the upper deck, along the center of
which are ranged her cupola shields, resembling gigantic inverted teasaucers,
each containing two 100-pounder Armstrongs of 88 cwt. These shields rest upon towers, which are
sunk through the upper deck, and are fixed on a turntable on the deck below,
which revolves with the guns, shields and men, as may be required. The hight [sic] of the shield from the upper
deck will be about five feet, which will be but a small object for an enemy to
fire at; shot can only strike it at an angle of 45 deg. The muzzle of the guns will be 9 feet 6
inches from the water. The sides of the
vessel will be covered with armor plating.
The shield ship will be 2,500 tuns measurement, and her estimated cost
is, as far as can be ascertained at present, $900,000. Her draught of water is to be 20 feet, and
her speed 12½ knots.
– Published in the Burlington Weekly Hawk-Eye, Burlington,
Iowa, Saturday, April 12, 1862, p. 2
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