Yeah I know, first colored fire now this stupid shit.
But this has been bugging me for the past couple of days and I can't seem to find any decent information anywhere. Information on military hand grenade fuzes to be exact. I'm talking about the variety which uses a spoon and safety pin, such as the pineapple.

Primarily, I'm interested in the powder train - all aspects of it. I've also heard rumors to the effect that in some fuzes, an acid is used which slowly runs though something or other and reacts with a primary.
Other than this, as I understand it, these fuzes use a cocked striker which is released when the spoon flies off, which strikes the primer setting off the powder train, correct?

youve done alot of researching..
this is what came up on the first page of google images when i searched for grenade diagram
http://static.howstuffworks.com/gif/grenade-delay.gif

Yeah, I've seen that before. It still doesn't really tell me what that delay element is. I can assume it's basically regular time fuse, or at least time fuse made specifically for any given grenade, I just didn't know if it used a special composition.

Probably Bickford style blasting time fuse specifically manufactured for the military and throughly tested.

Japanese time fuse would probably work the same. As would some sort of spolette.

You just gotta remember that if no vent holes are present to relieve gas pressure the burn rate of the fuse wont be constant as expected... it would burn up very quickly because of the pressure.

But really... weapons and combat would have been the appropriate forum.

Possibly, if a mod agrees feel free to move it. I simply figured I'd get better answers here, as W&C seems to be almost entirely firearm oriented. At least it is if you actually want intelligent discussion.

Perhaps... though military types who might actually have been lectured on how grenades and such work would be more likely to reside there.

Random_Looney might know...

Through really you should look where you are most likely to find the answer... and where this is... is google... or where ever it leads you... probably a good old book.

thou i agree it has some merrit in W/C this is more of BB question mainly due to it's pyrotechnic nature and that being said we deal with this kind of thing more often then not

Standard pyrotechnic mixtures used by NASA
Manganese/barium chromate/lead chromate: time delay mix, used for sequencing. Gasless burning.

That would take care of the "quickmatch" effect.

Perhaps... though military types who might actually have been lectured on how grenades and such work would be more likely to reside there.

Random_Looney might know...

Through really you should look where you are most likely to find the answer... and where this is... is google... or where ever it leads you... probably a good old book.

I doubt that, military doesn't really feel the need to explain WHY something works one way or the other they just want you to know how to use it. The only thing they care about soldiers knowing is how to use it, how far you have to be away when the shit goes off, the effective distance of ect ect. They don't teach you shit about the fuze or how it works.

I must say though Grenade fuzes are fun to play with. Our drill sergents used a few at one of the ranges to blow up some apples. They are not very loud at all. But they are definatly fun, unless of course you have some dumb ass throw one on you because he doesn't know how to clear a fucking bunker and lands it right between your legs as happend to me.

I doubt that, military doesn't really feel the need to explain WHY something works one way or the other they just want you to know how to use it. The only thing they care about soldiers knowing is how to use it, how far you have to be away when the shit goes off, the effective distance of ect ect. They don't teach you shit about the fuze or how it works.

I must say though Grenade fuzes are fun to play with. Our drill sergents used a few at one of the ranges to blow up some apples. They are not very loud at all. But they are definatly fun, unless of course you have some dumb ass throw one on you because he doesn't know how to clear a fucking bunker and lands it right between your legs as happend to me.

So when they train you for Ordinance disposal they just tell you stand a good distance from it and throw pebbles?

So when they train you for Ordinance disposal they just tell you stand a good distance from it and throw pebbles?

Ok dumb shit yea of course if you are EOD then you are going to be trained in different explosives and all that shit. But if your not EOD they aren't going to teach you that shit what they are going to teach you is a uxo 9line to call EOD to have them come take care of the shit.

The time fuze starts to burn only as the grenade leaves the thrower's hand. This system, using a finger level, has been widely copied. Immediatley before throwing, the user grips the grendae so that the lever is pressed against the side, and pulls out the safety pin. He throws the grenade, and as it leaves his had the lever flies off as the striker spring forces the striker down on to the cap, so lighting the four-second time-fuze.

I didn't copy and paste it, I copied it from a book that i have.

I must say though Grenade fuzes are fun to play with. Our drill sergents used a few at one of the ranges to blow up some apples. They are not very loud at all. But they are definatly fun, unless of course you have some dumb ass throw one on you because he doesn't know how to clear a fucking bunker and lands it right between your legs as happend to me.

Please explain further, i think my dad experianced the same, he was in the T.A and his sergeant or whatever where throwing them or dummy grenade thingys around and one went right next to my dads leg, he got sent o the medic guy. or something like that

Training grenades only have a fuse inserted, they still go bang but the body isn't fragmented, so you'll catch some secondairy debris at most.

...

But if you're standing directly over one, guess where that sec. debris will end up? :p

(January 2002, Croatia) A Croatian was killed while trying to open a hand grenade with a chainsaw. He wanted to retrieve the explosive to make firecrackers for the New Year's holiday.

link! (http://darwinawards.com/darwin/darwin2002-08.html)

Please explain further, i think my dad experianced the same, he was in the T.A and his sergeant or whatever where throwing them or dummy grenade thingys around and one went right next to my dads leg, he got sent o the medic guy. or something like that

Explain what? My incident or the drill sergeants? My shit was just the dummy grenade with the fuze which is pretty much harmless except that shrapnel can shoot out the bottom since the blasting cap is actually metal. I definatly don't want any near my balls which is right were the dummy grenade landed so i rolled.
The shit with the drill sergeant was a grenade simulator which isn't so harmless its like a big ass flash salute and has a thick plastic endcap. The endcap is pretty damn dangerous thats what hit the drill sergeant giving him a big ass welt and shit.