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A tank shell with your name on it

Chairman_woo says...

Just an educated guess but I suspect it's a tiny correction for wind drift which has been exaggerated by the camera angle.

The effects I think your referring to are called the "Coriolis" effect and "Gyro drift" and while they would have a similar effect this is seems like far too short of a range for them to come into play even at the relatively low velocity of that shell. That said its possible that with such a big round like that sabot "gyro drift" and maybe some sort of torque effect from leaving the barrel might be at work...

Gyro drift is due to the fact that the spinning bullet/shell starts to be pulled out of line by gravity causing the originally stable oscillation to slowly get knocked out of whack dragging the nose of the round out of line causing the round to pull slightly towards the direction it's spinning (though with a stable modern round this is very very subtle and only really comes into play at at least 1-2mile plus ranges).

The Coriolis effect is due to the fact that the earth itself is spinning. Over very long ranges the earth itself moves relative to the path of the round and so for 1-2mile plus shots one may need to compensate depending on the velocity and ballistic properties of the round. (this is why snipers tend to operate as a team because the maths and reference material necessary to account for all this plus standard bullet drop, variable wind conditions, atmospherics etc. etc. as well as maintaining situational awareness is a big ask for one person.)

Like I said though it seems unlikely they would have such a pronounced effect at such a relatively short range, the camera angle is definitely exaggerating what ever is going on there.


EDIT: I just watched it again, pretty sure it's just the camera angle (camera is slightly off to the left) I think the shell looks like it's actually travelling dead straight.

sixshot said:

totally cool how that shell traveled from the tank to its target. A couple of things I'd like to ask...

are those fins on the shell or is that just some effect due to the speed of which it travels?

And is it me or did the shell curved just a tad bit to the right? I was wondering if that was an actual effect of some phenomenon whose name really escapes me right now. (Something to do with compensating for long distance bullet travel and earth's rotation.)

"Wonder Woman" Remix...mmm, Lynda Carter

dag says...

Comment hidden because you are ignoring dag. (show it anyway)

I don't know bobbob, I give you Batman 3, as exhibit A. It was more of a homage to the 60s cheesy, camp TV show. The worst Batman ever in my opinion.

I think superhero flicks only work when they take it at least semi-seriously. Although that's a big ask for something like Wonder Woman. Invisible jet? Please.



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