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Pocketbook of Useful Formulæ and Memoranda
for Civil and Mechanical Engineers

Forfatter: Guilford L. Molesworth

Sider: 744

UDK: 600 (093)

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574 moleswokth’s pocket-book Gunnery, &c. (by Capt. Bridges, R.A.)— continued. Approximate Rvle for the Velocity of Shot. W = Weight of shot in lbs. to = „ charge in lbs. V = Initial velocity, feet per second. _ 2800 “ V w' ' ANOTHER RULE. V = 1600 k w w k being a coefficient for windage Windage = • 233 •2 ■175 •125 •09 ' •0 k — 3-2 k = 5-4 k = 3-6 k = 4-4 k = 5 k = 6-G6 Velocity or Shot at any Point. V = Initial velocity, feet per second. v = Velocity at x, feet per second. Il = Semidiameter of snot (in.). W = Weight of shot (lbs.). ® ~ 7 ' * 1 + ( ‘000062-TI Nx V W /
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