Minutes of proceedings of the Royal Artillery Institution (1858)
Great Britain. Army. Royal Artillery Institution · Woolwich, Eng., : The Institution · leaf 554
464 THE DEVELOPMENT OF ARMOUR. In 1893, several trials of thick plates of Harveyed i armour proved that the pro¬ … velocities over 1,580 f.s., that Fig . 1. is for the last three rounds : — Striking Calculated Perforation, Energy, Total energy, Round. velocity inches, per ton of plate, foot, tons. feet seconds. iron. steel. foot, tons. 1472 No. 1 7513 12-7 15-8 469*6 17-2 749-4 21-5 11,990 1859 f? 2 23-1 18.5…
Artillery -- Periodicals · Artillery -- Great Britain -- Periodicals
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