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Comte de Paris, History of the Civil War in America. Vol. 1. (ed. Henry Coppee , LL.D.), Book IV:—the first autumn. (search)
unknown until then, which soon required the construction of iron-clad vessels. They applied themselves to manufacturing guns of heavier calibre and longer range than those in use on European ships. They succeeded; and the howitzer to which Captain Dahlgren gave his name was in 1861 the most powerful arm afloat. Thanks to the invention of Rodman, the Americans had been able to cast iron guns which, notwithstanding a calibre of twenty-eight or thirtyone centimetres, had a remarkable power of res of powder in proportion to their calibre, a heavy weight of iron in the form of hollow projectiles of enormous size, whereas no cast-iron gun could have overcome the inertia of a solid ball of the same weight without the risk of bursting. The Dahlgren shell possessed an ordinary initial velocity and a trajectory but slightly curved; it nevertheless fired to a great distance and penetrated the thickest planking of vessels. When Mr. Lincoln came into power, he found the Federal navy scattere
Comte de Paris, History of the Civil War in America. Vol. 1. (ed. Henry Coppee , LL.D.), Book V:—the first winter. (search)
In placing it close to the water's edge they exposed it to be demolished, like the forts of Hilton Head, by the large Dahlgren shells, while its guns could only strike the sides of vessels protected by iron armor. Experience soon taught the Confer, formed of plates laid upon each other, the entire thickness being eighteen centimetres. This vessel was to carry two Dahlgren guns of thirty centimetres calibre. Entrusting the execution of his work to three different private establishments, Eri submerge the vessel up to the line of the casemates. Finally, the armament of the side batteries was composed of eight Dahlgren howitzers of twenty-four centimetres calibre; and four rifled guns of nineteen centimetres calibre were placed at both sby the breaking of her horizontal shaft, of the use of her machinery. The last three vessels alone were well armed with Dahlgren howitzers of twenty-four centimetres calibre. For some time past the Federals had been apprised of the work undertake