KD5NRH wrote:This appears to assume a truly open artery; i.e. fully severed and exposed with no resistance to the flow of blood out of the body. IIRC, Applegate's numbers accounted for the most likely wound types in a knife fight; slashes deep enough to hit lesser protected arteries like the brachial/radial/ulnar, and stabs into more buried ones like the subclavian. Slashes have a nasty tendency to leave a wide-open exit path, while stabs leave a relatively small hole for the blood to get out, increasing the time-to-incapacitation even if the artery is actually severed.llwatson wrote:A person must lose about 20% of their blood volume to lose conciousness from blood loss alone.
For an average size man (about 180 lbs) with an arterial wound, this takes about 12 seconds.
Either way, it doesn't sound like fun, so I'm not volunteering to demo any of it.
OTOH, I recall someone telling about demonstrating what can happen in three minutes to a class at the range. I was thinking earlier tonight that a "what could you do in three minutes" video series would be an interesting idea: several three minute videos showing how many "A" (or -0 for the IDPA folks) hits you can get at 10 yards, or how much knife work, or even how many miles at the local racetrack various people can manage. Some folks don't think it's a long time to wait until they see it in terms of how many times you can be shot, or how many miles away from the scene the perp can take your family member while the police are getting there.
Any volunteers? I'd love to throw a couple dozen of those videos on a DVD, and it seems like it could be good publicity for CHL, especially with a few minutes of EMS folks explaining how critical each minute can be and/or combat veterans describing what three minutes in a real firefight is like.
I posted concerning this... about a year ago.
I start some training sessions with a demonstration of why it is a good idea to be prepared to defend yourself.
About 10 years ago....I had spoken with the Chief of Police at the department here in Nacogdoches, and also the C of P from the University. I asked them both what they thought good response times would be to high priority calls.
Both indicated that 1-3 minutes would be excellent depending upon location of responding units, but that 3-5 would be more the norm. Both were quick to add caveats and conditions...and cautioned that "response time" only meant an officer "on the scene". It didn't mean anything was being done (makes sense).
Anyway, I have an egg timer (a small sand filled hour glass) that has three vials. There are 1-3-5 minute vials. I use these to represent 1-3-5 minute response times.
I have everyone gather by the equipment table, I turn the timer over, then take a rubber knife and without warning deliver potentially fatal cuts/stabs to 3-4 of the participants.
I then WALK 15-20 yards downrange where I have my pistol laying....I pick it up and leisurely shoot 3 pepper poppers. I holster the weapon, WALK back up to the crowd. I open a can of soda, drink it (albeit fairly quickly), point to the timer and ask "Are the cops here yet"?
Before they can answer I walk about 10 yards back downrange and engage two steel humanoid targets with two shots each, walk back up and again point to the timer. Generally, I'll still have 20 or more seconds left on the 3 minute vial.
Its an eye opener.
Three minutes would seem like eternity if you were "waiting" for someone to save you from a determined attack.
Even a 1 minute rendition of this would be convincing.
