"Digital" Man test, assigning a wound value to every square inch

[bfoosh006]

I don't know how to explain this test... so here I go..

I remember reading about a "USGI" test, from the '70s ( ? ) that assigned a wound value to every square inch on a man sized body.

Something like the square inch of fleshy part of a calf would have a value of 1, the heart square inch would have a value of 8.

The point was to try and predict what a bullets wounding capability was, based on the square inches involved with the bullets impact.
And then the assigned square inch wound values were totaled up

The test, if I remember correctly, was basically a failure. ( Since I never still read about it, I will assume I am correct )

I cannot remember what the specific name was of the test.

Or does anyone have a link to the tests ?

[Jim Watson]

I remember the tests although I don't know where to www it.
I think the figure was just a torso, no limbs to program for.
It gave some rankings against conventional wisdom and did not last.

[PNWTO]

Of course it failed, that sounds one step above a bag of chicken bones.

[Daniel Watters]

I'll find the citation on DTIC.mil once I get to my desktop. Part of the problem was that they were including the Temporary Stretch Cavity. They also used 20% ballistics gelatin, not the current 10%.

[Daniel Watters]

This is a link to the Army's report:
https://apps.dtic.mil/sti/pdfs/ADA078233.pdf

[Jamie]

I remember reading about "Computerman" and such in the gun rags back in the late 80's/ early 90's.

"Caliber Wars", Thompson-LaGarde, Momentum vs Velocity, Marshall/Sanow and such.

I thought DocGKR had posted related to these things over the years.

I read some of the archival pdf's too. Interesting from a historical perspective. I guess we didn't know what we didn't know. We've come a long ways, on many levels.

[Velo Dog]

The NIJ/LEAA "computer man" is discussed in chapter 4 of Handgun Stopping Power by Marshall/Sanow.

This 3-D model is explained along with the Relative Incapacitation Index (RII) and a Vulnerability Index (VI)

"The Vulnerability Index is a set of numbers that represents the relative vulnerability of the human body at each depth of penetration from the front. The VI takes into account the detailed construction of the body and the hit probability of trained shooters under stress using weapons of moderate to heavy recoil."





https://www.ojp.gov/pdffiles1/Digiti...87004NCJRS.pdf

[Velo Dog]

Part of the problem was that they were including the Temporary Stretch Cavity. They also used 20% ballistics gelatin, not the current 10%.

Perhaps a case of throwing the baby out with the bathwater.

An updated Vulnerability Index focused on the permanent wound cavity and including non-frontal shots or intervening hands/arms might have more relevance.

[Velo Dog]

Perhaps a case of throwing the baby out with the bathwater.

An updated Vulnerability Index focused on the permanent wound cavity and including non-frontal shots or intervening hands/arms might have more relevance.

I should have wrote Relative Incapacitation Index instead of Vulnerability Index.

It really doesn't matter since too many variables would be introduced for it to be worth the effort, IMHO.

[bfoosh006]

This is a link to the Army's report:
https://apps.dtic.mil/sti/pdfs/ADA078233.pdf

That is exactly the report I was looking for, Thank You