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Originally Posted by The Reaper
Good question though, let's see what the experts say.
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I'm waiting for longrange1947 and Gene Econ responses on this.
Disclaimer: Team Sergeant, I got chewed over this before and I did learn my lesson to be wary of manufacturer claims and the profit motive. Also in that thread , TR and longrange1947 IIRC saw the demo with the shooter DM and were not impressed. However, now I just want to point out that since there is a weapon system (PDA program) that takes into account earth rotation, it's plausible that the Canadian CSM was truthful.
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Originally Posted by Pete
The earth only rotates in one direction. Faster at the middle and very slow at the top and bottom (Thats relative speed). You would have to compute where you were and what direction you were shooting.
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Originally Posted by Team Sergeant
Not only would you have to know where you are in relation to the equator but the angle to target line in relation to the earth’s rotation, elevation of tgt and shooter etc.
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Originally Posted by The Reaper
At the same time, as noted, the direction of the shot relative to the rotation and and the position on the planet would be significant in the Coriolis effect. I do believe that some ballistic computers allow for it though, and with some of the kills coming at 2,000 m. or more, perhaps it is significant at those very extended ranges.
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The following are from:
(copy and paste)cheytac.com/White%20Paper2007.pdf
(copy and paste)cheytac.com/CABC%20Version%201.0.pdf
Coriolis Correction: The earth’s rotation has an effect on both elevation [when shooting east and west or angles including an east/west component] and on windage [when shooting north and south or angles having a north/south component].
User will enter in the PDA Advanced Ballistic Calculator: Target Height [MILS], Target Size [feet], Slant Angle, Air Temp, Ammo Temp, Air Pressure,
Latitude (This in addition to the Gun to Target angle and the range are required to calculate the Coriolis Effect. While the effect of the Coriolis is small, it is a factor at extreme ranges, at the equator or at extreme northern and souther latitudes. The longitude is not needed) Data were collected using Kestrel 4000, Leica Vector IV, and Suunto X6 wrist computer
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Originally Posted by one-zero
I'll call BS as well, especially regarding sniper application -
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I sure know zilch of actual operations, but I suppose entering all those data under high stress in denied territory is impractical.