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Rifles, Bullets, Barrels & Ballistics
Question on Applied Ballistics App and Coriolis
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<blockquote data-quote="Pdvdh" data-source="post: 1187837" data-attributes="member: 4191"><p>Your statement (above) leads me to conclude you believe that shooting due east or due west, across level ground, eliminates the horizontal component of coriolis.</p><p></p><p>If that's your current understanding, I contend that's incorrect. If your understanding is incorrect, it's unlikely your mathematical expression for horizontal coriolis could be correct. Don't take this wrong. Not trying to get you worked up into a dither.</p><p></p><p>My sermon from the pulpit: The magnitude of horizontal coriolis is constant over equal distances of fire, in every direction of fire. Fire your bullet one mile due north, due east, due south, or due west, and the magnitude of the horizontal component of coriolis is identical. Yes, it is a brain teaser. The magnitude of the horizontal component is only zero at the equator, and it's zero in every direction of fire at the equator. At all other latitudes, horizontal coriolis is present, and equal in magnitude, in every direction of fire. Where I live at 61* north latitude, horizontal coriolis is greater than in the 48 states. The horizontal component is the largest at 90* latitude, at both poles of planet earth. </p><p></p><p>I conceptually understand vertical coriolis for all directions of fire. I have a conceptual understanding of the horizontal component of coriolis for north / south directions of fire. Conceptualizing the horizontal component of coriolis in the east / west directions of fire is a brain drain. Mentally fatiguing. You'll find videos on the web that attempt to visually display horizontal coriolis. STILL a brain drain. </p><p></p><p>Bryan Litz may explain it clear as day in one of his books. I don't own them. He's sounded in on coriolis on this forum in the past, but I never saw him try to explain horizontal coriolis. And I don't think he will, because when all's said and done, most still wouldn't understand it. Certainly not well enough to explain it to anyone else.</p></blockquote><p></p>
[QUOTE="Pdvdh, post: 1187837, member: 4191"] Your statement (above) leads me to conclude you believe that shooting due east or due west, across level ground, eliminates the horizontal component of coriolis. If that's your current understanding, I contend that's incorrect. If your understanding is incorrect, it's unlikely your mathematical expression for horizontal coriolis could be correct. Don't take this wrong. Not trying to get you worked up into a dither. My sermon from the pulpit: The magnitude of horizontal coriolis is constant over equal distances of fire, in every direction of fire. Fire your bullet one mile due north, due east, due south, or due west, and the magnitude of the horizontal component of coriolis is identical. Yes, it is a brain teaser. The magnitude of the horizontal component is only zero at the equator, and it's zero in every direction of fire at the equator. At all other latitudes, horizontal coriolis is present, and equal in magnitude, in every direction of fire. Where I live at 61* north latitude, horizontal coriolis is greater than in the 48 states. The horizontal component is the largest at 90* latitude, at both poles of planet earth. I conceptually understand vertical coriolis for all directions of fire. I have a conceptual understanding of the horizontal component of coriolis for north / south directions of fire. Conceptualizing the horizontal component of coriolis in the east / west directions of fire is a brain drain. Mentally fatiguing. You'll find videos on the web that attempt to visually display horizontal coriolis. STILL a brain drain. Bryan Litz may explain it clear as day in one of his books. I don't own them. He's sounded in on coriolis on this forum in the past, but I never saw him try to explain horizontal coriolis. And I don't think he will, because when all's said and done, most still wouldn't understand it. Certainly not well enough to explain it to anyone else. [/QUOTE]
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Question on Applied Ballistics App and Coriolis
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