Drag data on bullet shell
Drag data on bullet shell
(OP)
I'm looking for data/info on the trajectory of spent shells/casings after firing a bullet. Drag coefficients/ factors, trajectory data, etc.
Any help is appreciated!
Keywords: bullet round shell case cartridge drag factor coefficient
Any help is appreciated!
Keywords: bullet round shell case cartridge drag factor coefficient





RE: Drag data on bullet shell
TTFN
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RE: Drag data on bullet shell
Does that make more sense?
RE: Drag data on bullet shell
Is this for school?
TTFN
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RE: Drag data on bullet shell
The idea being, the shells fall somewhere, and has anyone tried to figure out/predict where they fall?
RE: Drag data on bullet shell
TTFN
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RE: Drag data on bullet shell
So, military training & testing ranges may have rules related to where aircraft can fire their guns and quite likely 6 DOF models to help calculate this.
Certainly this had to be done for other ballistic stores.
So certain govt establishments or their contractors may have relevant experience. In the UK Insys (formerly hunting defence, now part of LHM) used to have contracts for 6 DOF models for range safety etc.
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: Drag data on bullet shell
TTFN
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RE: Drag data on bullet shell
I'm quite sure the infantry need to know this sort of stuff for little guns. I don't know of any reports, on the other hand I'm pretty sure I have seen a powerpoint or two on it. In that case the initial velocities would be very variable, I doubt the aerodynamics matter a great deal in comparison with that variability.
Cheers
Greg Locock
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RE: Drag data on bullet shell
TTFN
FAQ731-376: Eng-Tips.com Forum Policies
Chinese prisoner wins Nobel Peace Prize
RE: Drag data on bullet shell
Cheers
Greg Locock
New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm?
RE: Drag data on bullet shell
I would say that the driving force behind where a shell goes is how it is ejected, with aerodynamics being secondary. Rather than concerning your self with the tumbling, I would just come up with an experimental drag term to find out terminal velocity and roughly how far the wind can take the shell.
For more detailed analysis, you need to be more specific as there are many types of shells/casings, i.e. cannon rounds are a bit different from minigun rounds. Type of aircraft is also important.