The Principles And Practice of Modern Artillery Including Artillery Material G
The Principles And Practice of Modern Artillery Including Artillery Material G
Charles Henry Owen
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1. A PROJECTILE on leaving the bore of a gun will have acquired its maximum velocity, termed the initial velocity, and it is of the greatest importance to determine this velocity, an accurate knowledge of it being essential to the solution of many of the chief problems in gunnery. The initial velocity is in fact the starting point in most of the practical questions, and must be known in order that the results of artillery fire may be properly compared, and just deductions be drawn from them. 2.... Before instruments had been contrived to ascertain ex- perimentally the velocities of projectiles, attempts were some- times made to deduce them from observations of the ranges of bullets or shot ; but nothing of any value could thus be found, except in cases of mortar shells fired with small charges giving very low velocities ; for the ranges of balls fired under similar conditions are liable to be afiected by many circumstances, such as variations in the diameters or weights of the balls, and in the amount or quality of the powder, the wind, or the variable rotation of the projectiles.
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