I'll try keep this sort.
No, It seems overly large with no real ability to inflict sufficient trauma. More on this later.
Odd blade design limits options. More on this later.
Design limits usage options.
Not really made for stabbing.
That was mostly about coms, which should be part of the plan but does not exclude knives. Also the "draw a knife and they could draw a gun argument." They still have a gun, sometimes your precautions are not enough and that argument can escalate forever. (ie you pack a compact handgun, they show up with a long gun, machine gun, rpg, tank etc.)
Going to say it.
Ka-Bar is not a great design.
In a situation were you can carry a knife, this could co-exist with the knife but I would not replace it with one.
No.
Fuck serrations, have fun sharpening them. No serration, hone your blade nice and sharp.
No.
Depending on the situation.
This pretty much sums it up. It's situational, say for example you get completely blindsided, knocked over the head and tackled. You are laying on the ground with someone on top of you, say they are experienced so even in that position of advantage they will still use violence to subjugate you (ie punch you in the face.).
You are on the ground dazed and winded, possibly limited mobility. What the fuck do you do with a Karambit? Can't deliver a straight stab if it's needed.
A push dagger has
ONE way it can be held and used. handy right?
Blade design for this task is super simple and old as time.
Straight blade and handle, doubled edged, nice point. But decent cutting ability, and hone the blade to a razors edge. Comfort will probably determine blade length but say 2.5 inch min.
Straight handle and blade is important. A weaker person (or any IMO) should not give up the advantage of being able to use both hands on the knife. The handle can not be round (like old Ka-bar,) so you are able to index the blade automatically and instinctively.
With a knife we are basically looking to inflict sufficient trauma or disable the attacker so we can escape/survive.
Something like the "HFB pneumo spike" leaves a lot on the table. Even with a perfect heart shot sometimes shit does not work out as one would think.
"In one case seen by the author,a young man was shot in the left chest at a range of 3 to 4 ft with a 12-gaugeshotgun firing #7 1/2 shot. The pellets literally shredded the heart, yet, this individual was able to run 65 feet prior to collapsing."
chapter 9.
https://www.academia.edu/35579763/G...f_firearms_ballistics_and_forensic_techniques
So the attacker is not stopped after you stuck a large needle into them, what do you do after that?
History is interesting on this topic.
What people think Italians used to kill each other.
Actual knife for getting stuff done.
For a knife to do it's job it needs to suitably sharp. I've no idea on how well you sharpen a blade but inwards curved blades like on karambits are a pain in the ass. Odd shaped blades will make maintenance harder and so they may not end up being as sharp as they could be when you need them.
In modern times kitchen knives are responsible for most knife fatalities. They are in every house hold, people use them almost everyday and the design works with the instinctual parts of our brains ( the whole gross motor skills idea).
That stone blade I posted earlier has been co-invented the world over, you will find it in pretty much every society. It has evolved from stone to copper, bronze, iron, finally steel over thousands of years. In contrast something like the Karambit came from like one island in Indonesia. People have been killing each other for thousands of years with knives. The basic ideas have worked, but people need new shit to buy and sell so now we got exotic blade designs to buy. Karambits, tanto points and such (push daggers to a degree.)
