letting air in

[shaft]

stabbing knives usually have a channel depressed into them so when you stab something air is let into the victim. im not sure of the medical side of things but its supposed to hasten death. should arrows have a channel (flutes) cut into them (by manufactures)to make them more effective? is there anyone here that actually knows why air is let in?

[Mozza]

I don't think it is to let air in, rather it is to let blood out i think.
I have heard them called a blood groove.

If you were to have one on a broadhead i dont think it would make that much difference cause the arrow usually zips straight through anyway.

[shaft]

you may be right about the "blood groove". i was saying manufacturers shuold put them on a shaft, if it works. like a fluted barrel of a rifle.
golf balls have those dots on them to make them fly straighter and longer. they break up the drag.

[brian]

yep - no point on a boadhead, since passthroughs are what we want if possible.

as for the knives - i actually heard (and believe) that when you stab something with a knife it is difficult to pull out due the suction/vacume (sp). the channel lets airs in to equalize pressure and relieve it, therefor making the knife easier to pull out. this makes sense to me, especially if you were holding an angry pig that wasnt finished.

[shaft]

that makes sence too. soldiers would twist the bayonetted rifle to withdraw the blade, thereby letting in air.

[Wareagle]

N.A.P Spitfire mach. broadheads have multiple groves.

[jindydiver]

The groove (or fuller) on the side of a blade is to reduce friction from the wet material as you move the knife through it. You will see many grooves on very expensive ham knives and they have the same function. It has bugger all to do with letting air in or blood out.

An arrow manufacturer back in the 80’s introduced a set-up where the broad heads had a hole through the centre of the ferule running down the long axis of the head, and the arrows had a hole in the wall at both ends. The idea was to let blood flow out through the hole if the arrow didn’t pass though and the animal would expire faster and you could track it easier. They were a complete failure and lasted maybe one season.

[esrom]

Have to agree with jindy. as far as soilder twisting a bayonet, i think that turns a nasty stab (under statement) into a horrific injury, it's called a "coma cut" i think. Really nasty.

[woody]

I was under the impression that soldiers with a stuck bayonet pulled the trigger :D

problem solved 8)

Yes to break suction lock, in answer to the original question. :lol:

[Russell]

I was under the impression that soldiers with a stuck bayonet pulled the trigger

What I was taught when I was in the army was stab,twist and pull and if the baynet ever got stuck in bone pull the trigger :wink:

Which actually done nothing if you where out of ammo or never had one chambered :shock: