4 ms·
Impressive, indeed [1], but its the easiest of the corrections they had to do. Its a standard classical physics question and has been included in artillery calc
by sbaiddn 4y ago
Impressive, indeed [1], but its the easiest of the corrections they had to do. Its a standard classical physics question and has been included in artillery calculations since at least the late 19th century.
[1] Id imagine that a bullet, being so light compared to a shell, is more affected by fluid flow than the coreolis force. That the correction was needed means they nailed the far more difficult fluid problem.
- chroma 4y agoCoriolis deflection is a rounding error compared other sources of inaccuracy. In their press release[1] they said they didn't account for it: > Scott made the wind and elevation call of 1,092 MOA up and 17 MOA left. (In our original release, I forgot to include that we added a 36 MOA left mechanical wind adjustment at the beginning of the day for a total of 53 MOA for the hit. Our calculation for spindrift was 93.80” right) We did not take into account the Coriolis, as much of that is lost in the weeds with respect to wind (6-9 mph), temperature rising (constantly adjusting elevation) and time of flight. The bullet’s flight path is over 2500 feet above line-of-sight and there is a lot going on up there that we are unable to predictably compensate for. If it had been an absolutely dead-calm day it definitely would be one more variable to try to address. MOA stands for minute of angle, which is 1/60th of a degree, so a 1,092 MOA adjustment is 18.2 degrees. It's insane that they managed to hit the target. 1. https://nomadrifleman.com/world-record-shot/ https://nomadrifleman.com/world-record-shot/