Just how effective are improvised explosives?

Go away atf

You should be able to use google

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>>31471687
>when would you use them?
Sir i'm going to need to see some ID, and your dog.

What happened to the /k/ I know?

>>31471687
All I really know is whats on the murdercube website

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why dont you find out yourself pal

Considering all that crap has been used to kill civilians, I'd say pretty effective.

Now vs military targets?
Probably not so much!

>>31471687
Sure thing mate, give me a call
(855))-835-532four
You're welcome to come down to my place, I'll show you everything you need to know. Just hit me up familam

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>>31471687
Pro tip, put the fuse in the center, not the end. Like an m80.

>>31471687
lol, amateur. this is what happens when jihadi john and the radical retards ban schools.

you know, if you had adequate schooling for general education you wouldn't be going small time. but hey, only the retards will willingly blow themselves up.

go back to fucking sheep and believing the total bullcrap the caliphate shoves down your throat.


BTW, searching on google, blatantly, gets you watched for a little while by the feds. even for "educational" purposes.

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>>31472076
got filled with faggots really.

too many people who don't know shit or want to jump on the

>lol atf

bandwagon.

I remember shitloads of good threads about this sort of stuff but now it's all just meme's and fuckery.

>>31471687
>Just how effective are improvised explosives?

I should reckon that depends on the materials used and the situation in which they are employed.

>>31471687
If you're stupid enough to ask, you'll probably kill or maim yourself trying something. And/or get caught by federal agents.

Just amuse yourself with binary targets for now kiddo.

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Stay away from flash powder, especially KMnO4

>>31472866
explain this gif

>>31471936
kek

>>31472876
Hes finnish

Jeez, guys, I'm not gonna blow up a school or anything, I'm just curious how useful they would be against the government in a revolution.

>>31471687
>federalbuilding.jpg

>>31473157
Thats exactly what someone planning to blow up a school or something would want us to think.

Fgt

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there was a whole thread about how to make shit like this, and how the british made impromptu mortars with soup cans and tubing, and if you could make some thick pvc piping into a super canister shot with ball bearings and a powder charge

>>31471687
anyone know how to make a german style pull fuze?

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>>31471687
Better luck next time with your honeypot, feds.

>>31471687
Go back to Syria, Muhammad

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>>31472589
Do i have to use magnesium or can i use a fuse?

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>>31472589
And by on ice, does that mean i cant have it premade?

>>31474299
fuse ain't hot enough.

>>31473124
Cheers

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>>31471687
EODfag
Tannerite - literally the lowest effective explosive, why else do you think the dogshooters haven't b& it yet?
Pressure cookers - an afghan Talib meme that they use because useful metal containers are scarce and expensive in the bazaar. Now a meme copied by internet jiheads who read Al-Qs online shit and don't know any better . Western stovetop cookers arent even the same as the heavyweight ones that cook the goatcurry on a woodfire, so the lid basically pops off before it can build decent pressure to fragment. And talibs use better HE than internet crap mixes to get useful effect anyway.
A molotov isnt a bomb, its just smashing a bottle of fuel and setting it on fire.
Pipebombs.
Varies according to fill. Matchheads and chlorate mixes will just pop and tear the pipe open. Some noise but no reliable frag.
Rifle powders will break the pipe into maybe 3-5pieces but still only random chance of damage.
To do real blast/frag damage you need hi-grade HE, but by then you're wasting your time with shoving it into a pipe.

>>31474327
EODfag
No, it means:
1. Actual thermite grenades M14 would explode if used in frozen conditions due to the outer layers staying together and building up pressure internally. There used to be a warning note inside the box that some anon has misunderstood that frozen thermite dust is explosive.
2. Also literally letting the molten iron the thermite produces drop onto a big block of ice.
Hot molten metal onto frozen water isnt an explosive, but the result is still reactive.
>so 2 halftruths misheard from one interweb source

I was watching one of those 9/11 stories on tv days ago and they said molten aluminium is a explosive when it comes in contact with waster

>tfw americans are too scared to talk about weapons on a weapons board because their govt is watching
"Land of the Free" indeed.

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improvised explosives can be extremely effective.

>>31476019
Did some flips, but still fairly intact. Wonder if the crew survived.

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>>31476019
Yep, but 25kg of HME in a YPOC and some leftover russian APmine to prime it is a bit bigger than anons backyard pipe

>>31476186
The fuck is up with all the yellow oil containers being IEDs? How do they have so much palm oil?

>>31476186
I have a bunch of these i use fur storing gasoline and water, they work p good

>>31475610
EOD man, tell me

if a controlled detonation goes pop instead of bang (dud, crater'd, etc), do you attempt to defuse your damaged charge; or do you add a second charge to detonate the first

>>31476283
Theyre readily available.
Everybody needs to fry the goatmeat after they used it as goatfuck lube

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>>31476394
Never had a partial, but I always tape my det onto the cord so I can de-det if it fails to function.
If the charge is against a target, I'd reset with a new one and destroy the partial later as most times you're using enough charge for a specific aim and just doubling-up increases your radius while still having no guarantee parts of your original charge wont just get spread all over.

>>31476184
>fairly intact
>survived
yeah, if they can survive as a red mist everywhere in the wreck.

Jet fuel, fertilizer, etc have all proved to be dangerous as fuck.

>>31476295
Kill yourself.

>>31473990
fuck off faggot

>>31472589
>Effective explosive
>Tannerite
Pick one.

>>31476462
>I always tape my det onto the cord so I can de-det if it fails to function

I hear what you are saying, but I suppose my real question is
"is it safe to handle one of your own charges if it partials or doesn't go off"

I suspect that the explosives you use can't "burn to detonation", but I've heard that after some explosives crater they can catch fire or undergo a local heat exchange reaction that potentially could cause them to detonate after some time has passed and heat has built up

are you ever worried that the bad guys might start booby-trapping impact fuses with gravity switches so they blow up guys trying to remove them safely?

>>31476632
If the det fails you can walk right up to it, it's not gonna just go off on it's own unless the detonator had a fuse that went out then re-ignites or something dumb.
If the detonator went off and it didn't set off the main charge, you're not at risk walking up to it DESU.

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>Just how effective are improvised explosives?
If done right, about half of tree fiddy.

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>>31476632
All explosives can burn to detonation.
Everybody has cooked or brewed up using small bits of PE or C4 too small to transition up to detonating, but if a detwave has started but then fails to sustain, it doesnt transition back down to burning, it just stops and throws the remnant HE around the site. So its just messy to have to pick it all up into a pile to blow later.

Remanufacturing fuzes internally to be boobytaps would only be done by a highend military lab, so it's a only known threat on certain fuzes from specific countries and you act accordingly.
Abdul binGoatfukin isnt going to manage a job like that in his mudhut.

>>31475610
>Pipebombs.
>Rifle powders
But what about pistol powders?

>>31476665
>unless the detonator had a fuse that went out then re-ignites or something dumb.

jeez, that's some hurt locker shit right there
you're a wild man

couldn't you get a defective fuse that just burnt like an incense stick?
that may or may not have happened to a friend of mine once

wouldn't there be other considerations, or could you really just walk up to it, replace your failed det charge with a new one and try again

if you're using an inert plastic explosive to blow up old arty shells and mortars gathered from a cache then IDK how risky it would be

>>31476710
ah, this makes sense
the partial det would scatter the remaining HE, thus stopping a delayed detonation
should have figured that one myself

you fellows must save retards from exploding themselves on a daily basis

I've heard about abdul trying to cut open ordinance unwittingly while salvaging metal,
abdul putting UXO in fires for no reason

I hear it's pretty common for villagers to hoard UXO to try and sell to terrorists, land mines in particular

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>>31472004
FTFY

>>31476769
Generic term, not a lot of difference between the two. Faster burn rates between propellants, but no real difference for just making pipebombs.
Slight theoretical advantage to use doublebase (NC+NG) powders but most hardware store pipes will split and vent before it reaches theoretical max pressure.

>>31476772
If youre still using burning fuse, you wait longer than the expected detonation time, then go forward and re-det.
>Fuck that ShiteLocker. Watch the first 5minutes with Guy Pierce then hit eject and use it as a beercoaster. Cunt who wrote that had no idea.

>>31476785
I'm glad that you used E.

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Wew.

>>31472585
>the feds having enough resources to watch everyone that google searches bombs, pipe bombs, or explosives

the feds dont have enough resources to watch actual threats, dumbass

>>31476785
Reddit and /MLP
>You really think the Gmen are more interested in vanning us than you?

Feds and even BATF-Eguys are IABTI members the same as us worldwide, we go to the same schools, do the same meetings, talk shit over beers, blow shit up.

>>31472876
meth, not even once

>>31476855
bait?

>>31476592
Why u mad ?

>>31474299
magnesium or the old style sparklers that throw sparks.

you should be able to light magnesium dust (ie fire starter) with visco fuse though.

both tannerite and thermite will become less effective over time as the ammonium nitrate pellets in tannerite, and the iron oxide in thermite will absorb water and humidity

you guys know that thermite doesnt explode, right?

>>31476911
>you guys know that thermite doesnt explode, right?
It can explode, if done right/wrong.

>>31476868
Nope.
Im a professional at BSU (blowing shit up), the Feds arent going to bother me.
They need me doing what I do.
Talking with them, they would never put my arse in jail for anything short of murder. Because the only thing I have to trade on the inside would be teaching my skills, and nobody wants me doing that...
They probably arent even going to bother chasing k/ids just making letterboxwreckers or fucking themselves up with lawnmowers.
Theyre too fully occupied chasing the next Jihead jerking off for the almighty Caliphate.

So, screw all the B& andV& crap, lets tal/k.

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>>31476934
Only if you have a pretty pissweak definition of woohoo big explosion.

>>31476981
>no true explosionsman
Or if you just go by the normal definition of explosion.

>>31476805
haha thought that would garner a reaction, I'm just pulling your leg m8

good talk anon, best of luck

>>31475610
most of this post is bullshit or half truth

>EODfag

a half assed knowledge of exosives and chemisrtry doesnt make an expert to anyone except 16yos on k.

>Tannerite - literally the lowest effective explosive, why else do you think the dogshooters haven't b& it yet?

Black powder would be the lowest effective explosive, as evidenced by its extensive use as an industrial construction explosive and in war before more effective explosives were developed.

AnAL (aka tannerite) is classified as an explosive and once the 2 seperate chemicals are mixed it IS regulated as such. it is sold unmixed, and both chemicals unmixed are essentially unregulated, which is why its legal.

>Pressure cookers - an afghan Talib meme that they use because useful metal containers are scarce and expensive in the bazaar. Now a meme copied by internet jiheads who read Al-Qs online shit and don't know any better . Western stovetop cookers arent even the same as the heavyweight ones that cook the goatcurry on a woodfire, so the lid basically pops off before it can build decent pressure to fragment. And talibs use better HE than internet crap mixes to get useful effect anyway.

ragheads use whatever they can get their hands on. pressure cooers are effective as terror devices as evidenced by the boston marathon attack. Im going to avoid the how and the why because I actually dont want to be responsible for shitbags using knowledge here to attack my countrymen

>A molotov isnt a bomb, its just smashing a bottle of fuel and setting it on fire.

gelled or thickened fuel that if done professionally is self igniting and can disable most vehicles
>Pipebombs.
>Varies according to fill.

no shit, sherlock

>To do real blast/frag damage you need hi-grade HE

that depends on what you goal is

>but by then you're wasting your time with shoving it into a pipe.

a container is a container

>>31477012
What definition?
A self-sustaining detonation wave with a velocity above 2000 metres per second?
From thermite? Suuuuure.

Or just a physical rupture of a container due to gas expansion?
By that definition, throwing your moms crotchrot spraycan in the fire is a 'hellabig splosion'

>>31477052
>A self-sustaining detonation wave with a velocity above 2000 metres per second?
Where'd you get that definition? Your arse?

>>31476903
Because tripfags are cancer of the highest order and you know it. The only person here who has any reason to use a trip in this thread is the EOD guy and even he doesn't do it. This is why people hate you.

>>31477115
What?
I have plenty of reason to use a trip.
Just because somebody is EOD doesn't mean they are an expert on explosives, they are trained in the useage of explosives, not the science or manufacture of them.

>>31476911
Iron oxide is not hydroscopic.

>>31476790
They will split if you use a conventional fuse and let the powder deflagrate. If you detonate, you send a super sonic blast wave through all the powder causing all the propellant to release it's energy at once giving you a much better yield from a PB and actual reliable fragmentation.

>>31477070
>my arse
Instantaneous combustion or conversion of a solid, liquid or gas into larger quantities of expanding gases accompanied by heat, shock and a noise.

Detonation is a violent chemical reaction within a chemical compound or mechanical mixture evolving heat and pressure. Detonation is a reaction which proceeds through the reacted material toward the un-reacted material at a supersonic velocity. The result of the chemical reaction is exertion of extremely high pressure on the surrounding medium forming a propagating shock wave that originally is of supersonic velocity. A detonation, when the material is located on or near the surface of the ground, is characterized normally by a crater.

a. Detonation Wave

A detonation wave is a shock wave in a reacting (explosive) material where the chemical reaction is carried out in the shock front.
b. Velocity of Detonation
The rate at which the detonation/combustion wave travels through the explosive product. The speed or how fast the chemical reaction occurs or the rate of the reaction. Only High Explosives have a Velocity of Detonation (VOD). The reaction speed is measured in feet/second or meters/second. Velocity of Detonation (VOD)-of a high explosive shock wave will usually vary from 6500 feet/second (2,000 m/second) to 26,000 feet/second (8,000 m/second), the speed of sound being 1085 feet/second (331 m/second) in air. 1 foot = .3048 meters
>ok, show me thermite chemically decomposing at even 1000m/s, when its just Al oxidising with iron oxide.

>>31477167
This
And yeah, iron oxide thermite does not detonate.
Copper oxide thermite on the other hand...
It's bullet and cap sensitive, although very weak.
It makes a nice brown/red copper dust smoke cloud.

>>31477167
Your source contradicts your own claims.

There's also more than just iron thermite, this is basic /k/ stuff that any lurker of more than a couple weeks would know, because there are so many "hey guiz, did you know about copper thermite" threads.

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>>31477141
EODguy
mfw you dont do a degree-level course in explosive chemistry, manufacture of conventional and HMEs, instruct on both military and police courses, design and develop specialist breaching munitions, have a civilian accredited blasting licence, bombscene forensics qualification, as well as conventional and chemical ordnance disposal...
Guess where you can put your trip, Mrcumstain?
>picveryrelated

>>31477141
yup i didn't mean to include that like that. iron oxide isnt hyGROscopic, ammonium nitrate is. i should have worded that different.

iron oxide will somewhat solidify when exposed to water or humidity over time, and reduce its effectiveness and make it much harder to ignite

>>31477231
Wow you're a pretty tough guy lmao
>I mixed some acids and added some cotton I'm an expert now!
>look at all these acronyms I'm using
>I know my shit ok
Ok buddy.

>>31477012
no, seriously, just stop

thermite is for burninating

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>>31475693
Nigger, you better google 'Thermite on Ice' - just because no one knows, why that shit explodes does not mean that it doesnt.

Thermite cant read, you know?

>>31477216
Copper thermite, or any other thermite still isn't an actual detonation, no matter how many times it gets copypastad.
Thermites are still just a rapid (to the eye only) surface burning of two heated metallic powders transferring the attached oxygen from one to the other.
A defined detonation is the breaking of the bonds within the molecules of a substance eg TNT C7H5N3O6 in a selfsustaining reaction.
>so, while to the naked eye thermites can 'go boom' and produce some sound and light and heat, they arent actually an explosive.
Google burning, detonation and deflagration to see the difference

>>31477070
>>31477167
BTFO, in a literal sense

>>31477216
>There's also more than just iron thermite, this is basic /k/ stuff that any lurker of more than a couple weeks would know

lol, no, because there hasnt been threads like this on k for many moons.

>>31477261
And what the fuck do you know?

>>31477261
This is the real problem with blowing shit up threads on /k.
There are even less real hazexplosionz beyond 'ive seen some shit go boom on youtube once' here than the few real hazgunz.

>>31477350
I used to be pretty big on YouTube back in 2008 before roguesci shut down, those were the good days senpai.

>>31477231
not all of the eod guys go and get all the potential certs and accreditations that are available, and not everyone continues into the civ field wben they get out, jackwagon. you know damn well that some guys coast.

further, not all the mil stuff and civ stuff is going to cross cert.

further, understanding what a chemical is capable of, and understanding chemistry are different things.

>>31477306
He didn't say detonation, he simply said explode. He may have meant detonation or a high explosive, but he didn't say that.

>>31477350
>>31477364
And there we have our k/ level expert.
I don't know why the Pentagon wastes all that time on having an EOD School when we could just get real experts from YTube for hot pockets and free trips.

don't let this thread degenerate into petty bickering guys

some people have formal qualifications, some don't
some know official chemical designations, some know chemical structures, some just know "that funny colored crystal you have to throw out"

please don't sink to the level of fucking flys by arguing differences in nomenclature

>>31477379
detonation was implied

>>31477403
stop being a fag, unless you can verify someones education

>>31477422
the problem is with making available bad info to any schmuck reading this.

bad info in a thread like this actually has the potential to be extremely dangerous irl

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>>31477370
EODguy
Yeah, not everybody in EOD does every qualification, but he asked for mine.
There are guys with further Degrees in explosive chemistry physics and design beyond me.
Im just passing on things from what Ive picked up over a lot of years, and hopefully correcting some of the meme-level crap info that circulates here.
You can each read and ignore any of it if you want.

>>31477301
Googled
http://physics.stackexchange.com/questions/10320/explanation-of-thermite-vs-ice-explosion

Doesnt seem to be a mystery except to those mythbusterfags behind the perspex blastwall.
Just read the explanations and equations.
Still not an actual detonation, just fine particles rapidly burning/oxidising.

>>31475737
Molten aluminum on water breaks the H2O down into hydrogen and oxygen which then get lit up by the heat from the metal and recombine in some interesting burning, but it's 'explosive' but not technically an explosion.

>>31477438
well the only answer to that is "don't discus sensitive material on a forum that doesn't require an IQ test to post"

some people here know their shit, some are bluffing
there are always going to be people with the knowledge and resources to check things through, and there are those who couldn't make a packet cake

I just want to stop these one-page guides to making explosive that people spread around "just in case the government..."

and it would be nice to restore /k/ as a place for knowledge seekers

for the record, and at the risk of being drawn into the frey, my understanding of what makes a detonation seperate from deflagration (which is just burning) is that burning is a reaction that spreads through heat
a detonation spreads by pressure

but when something detonates a shock wave passes through it, I think an arbitrary limit is drawn where the shock wave is faster than the speed of sound

so thermite just burns quickly, there isn't a shockwave
under the right conditions it can burn fiercly, but I've never seen it produce a shocwave, much less a self sustaining one

>>31477163
EODguy
Agreed, but to get propellant in a pipe to detonate not just burn fast, you need more than just burning fuse.
And if you are at the level of acquiring or manufacturing detonators, you can use/make real HE substances for your main charge as well and wouldn't need to be messing about with bits of plumbing filled with reloading powders, which is where I figured anon was.

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>>31471687
Sorry feds, u ain't trickin me dis tim eroun

>>31477656
do you really want to teach this random person how to make a pipe bomb?

his interest doesn't strike me as academic

>>31477163
anon if you put black powder in a pipe, it will burn like a rocket engine and spit fire out of the fuse hole

if you are lucky it might break the pipe, if you are unlucky you will burn yourself or hurt your ears

most of the people who use explosives daily can't make them, it involves explosive gasses, lots of things that cause cancer, reactive salts, nasty acids

stick to guns

>>31477769
EODguy
Like any anon here cant try to make a PB anyway, but thats like assuming everyone on here who asks about a Deagle will ever even acquire a .22 squirrelgun when we know 95% will never and the 1% is already getting his black schoolshooter trenchcoat drycleaned.
As >>31477589 says, we should be able to talk factually about explosives here on k/ as much as we do realgunz or waifuanimelewdgunz.

Im not copypastin the memeguides that any k/unt can download online, Id rather answer with actual information

So I have some questions.

Some things are "explosive" like gunpowder.

Some things are "explosive" like c1.

Some things "burn" like thermite.

Some things "burn" like solid rocket fuel.

There seems to be a lot of overlap. Gasoline for example. It burns, but if you aerosol it somehow it can boom. Is that an "explosion" or just a fast "burn?"

Are the terms "explode" and "burn" mutually exclusive?

>>31472500

Depends on how you want to direct the wave or what you're doing.

If you're blasting rocks, after you've jacked a hole the fuse goes in the end not the side

>>31477928
I could ask questions all night seeing as you are in the know

how do you store explosives properly?
how do you channel an explosion downwards to collapse tunnels (without dropping something from the sky)
how does a cutting charge actually work, I can't work out how you ensure the molten metal flows out of the cut instead of re-forming

are shaped charges all they are talked up to be
I've heard abdul has started experimenting with them and if he works it out I imagine IED's are going to get much worse then just buried mines
why copper cones, why not lead or mercury?

>>31478040

There is differentiation between things than burn and things that detonate. Complex words like deflagration are involved but legally the layman has no chance of deciphering legal jargon and complex grammar involved in our laws, especially when situations in lives as complex as ours see overlapping laws and contradictory statements when comparing the two in your mind

Our laws are legal documents you need to decode with others because you're fucked trying to figure it out by yourself.

For example gasoline burns but inside a motors cylinder it basically explodes.

>>31478090
https://www.google.com/url?sa=t&source=web&rct=j&url=http://www.dtic.mil/ndia/2011ballistics/12056.pdf&ved=0ahUKEwjc0rGH-6_PAhVE6WMKHa2sBpQQFgg2MAY&usg=AFQjCNGH_F6-dzhTNANIu1dP8NTuqMy8iA
I may leave that for you.

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>>31477509
My bad.

Also, maybe i didnt read 2nd Point of >>31475693
and startet immediatly shitposting about Thermite just going crazy on Ice.

>>31478040
EODguy.
Ok, good basic questions.
There is a big difference between an explosion being just "wow, that stuff really went boom" and an explosive compound that detonates to produce an explosion.
Gasoline, gunpowder, rocket fuels, even metallic powders like thermite burn. More rapidly than wood or paper, but its still burning - the material is heated up, combines with oxygen in the air around it, and its surface burns. If its a fine powder or a fuel vapour, each little dustspot or droplet has a lot of surface compared to one large solid block burning like a log, so it can 'flash' burn rapidly up to about 500m/s and produce what looks like a bomb.
If this fast burning fuel is confined like in a PB, the gas given off suddenly by the flash burning can build enough pressure to burst the pipe open producing whats called a mechanical explosion - the metal expands until it tears open the same as an overpressured boiler. Depending on the sped and volume gas production will determine if the cap just pops off the pipe or it shreds into nasty fragments, hence the difference between matchhead PBs and gunpowder or rifle propellant PBs.
Actual explosive substances, C4 TNT etc create their explosion by the actual internal breakdown of their molecules into gas and energy that heats and expands the gas, similar to the above, BUT it isnt burning, it doesnt need oxygen from the outside air so explosives can detonate underwater, and as the first molecules are initiated by the detonator they break up and then affect the next ones to break up around them, until there is a circular shockwave expanding out through the lump of explosive, not just burning on the outside surface. This expanding bubble travels through the whole mass at supersonic velocities 2000-8000m/sec, so much faster than burning although the naked eye might not pick the difference and thus it will shatter the PB or shell, grenade etc body into high velocity fragments.

>>31478317
So...

If I understand correctly, a thing "burns" if it's a reaction with oxygen, regardless of how quickly it burns.

Fuels+oxidizer mixes are also considered a "burn," even if they react very quickly

A thing explodes if it's a chemical reaction that creates a lot of energy and expansion of gases very quickly.

Am I wrong? Too over simplified?

On another topic, what fuel should I use to make gyro jet rounds?

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>>31478090
EODguy
Ok.
Storage. Whatevrr state or country will have safety laws, but basically store away from flame, heat, friction, sparks. Some recipe explosives can react with metals or moisture to become unstable, so try to learn more than just memerecipes. Wiki can be useful if you know its chemistry. Or just use stuff as soon as you make it and dont store it.

2. Blasting in a direction. Complex but either multiple shotholes can combine their effects to (mainly) blast in one direction. Look for a Blasters Handbook if you want to dig a goldmine, Dupont used to put them in libraries. Alternatively to shoot a hole downwards see shaped charge below.

3. Cutting charges dont melt metal into liquid, over simplified, its more like they force it hard and fast enough to make it flow away - like driving a fist into sand flows away

4. Shaped charges. Yep. Properly designed you can drive a slug of plasma into and through a target, or in multiple holes.
Copper is used because its heavy but ductile to be shaped to the right design. Glass is also used as it can be cast and is heavy. Mercury as a liquid wont hold the right shape.
The Abdul binGoatfukins already use them, and EFPs which are similar but compress into a metal dart/slug penetrator rather than being compressed further into the plasma jet that slices through armour like an oxy-acet welding torch
>pic diagram of RPG shaped charge collapsing inwards and punching into tank armour

>>31478380
EODguy
Yep, very very simply.

Gyrojet ammo.
1. If youre only at simple chemical theory like above, you DONT.
2. Most likely any common rifle/pistol propellant formula, but since you want to burn as a rocket not just flash-burn in a regular cartridge case, you need to dissolve it in a solvent to extrude tiny thin hollow cylinders that can be coated with a burn retardant on their outer surfaces so they gradually (compared to the fine ball/stick shapes youll see in regular shaped propellant) so that it burns only from the ends like a bundle of mini cigarettes and lasts for a couple of seconds to push your careeully machined gyrojet rocket projectile along.
So, basically, unless youre an experienced propellant specialist chemist with a full laboratory, see Point #1.
Sorry, and yes its a pity because they would be cool to make again

>>31478581
Learning this stuff is fun. I could ask you questions all day. Suggested reading?

>>31478593
EODguy
Probably start in Wikipedia at 'Explosive' and follow a few of the random thread-tracks that catch your interest, youll pick up a lot of the basics.

Going offline for a few hours.
Go have a read k/ids and we can do questions again in a couple of days.

>>31477039
The marathon bombings are a perfect example of how shitty the pressure cooker is. The lid is the weak point and when it gives way you lose much of the blast out the top. This is why only three people died.

The same applies to pipe bombs. The more pressure you can build up the better, but the pipe generally fails prematurely and reduces effectiveness.

>>31473658
desu dont even try to point these people in the right direction, if you cant work out a basic explosive by yourself then you shouldnt be anywhere near them.

>>31476019
that was impressive but how much "diy explosive" was used?

No point recommending it if you have to use 250KG to get a decent blast

>>31476710
I read the thumbnail as Yoyo

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>>31471687

>>31478456
That gif is wrong, no jet formed in that gif.
Technically that gif showed more of an EFP effect.
Also, I thought you knew your shit, there is no plasma present in a shaped charge, it's just plain ol metal being squirted out really fast.
Copper isn't used because it's ductile, either, if that were true lead would make a much better liner, but copper is three times as effective as lead despite being less ductile.
You should look into a book called fundamentals of shaped charges by William Walters to learn more.

>>31479798
Also what do you mean by cutting charges?
Are you referencing pic related?
Cutting charges like pic related operate off the exact same principle as shaped charges except they operate in a linear fashion instead of focusing to a single point.

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>>31479871
Lol forgot pic

>>31476299
Any videos of this shit working?

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>>31479798
EODguy
Walters repeats in all his works that the plasma is a 'misnomer', and as a good overview on shaped charges his 2007 DTIC slideshow is a good resource, there are differing opinions on the plasma issue.
http://webcache.googleusercontent.com/search?q=cache:http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20010029205.pdf
Turner Hawk Litchford (2001) from U.Alabama and Huntsville for NASA is specifically a study of Plasma Jet electrical conductivity - which would suggest there might be a plasma whose conductivity is being measured...
>Anyway for a k/-level discussion, the term "shit being squeezed really fast" will probably suffice for now.

>>31478581
I thought gyrojet used a compressed solid propellant?

>>31471687
>Just how effective are improvised explosives?
If we take Columbine as an example one must really know what he is doing in order to detonate one.
I mean they had the whole place rigged and still failed.

>>31472076

Well if you didn't ask an absolutely stupid fucking question.

A pipe bomb is explosives in a pipe. So the pipe acts as shrapnel. Like a grenade.

A Molotov cocktail is flammable liquid in a glass container with something on fire near it, it breaks a puddle of flaming liquid occurs.

They are so vastly different, they arent even the same category of thing. Molotov aren't even explosives. You asked a stupid question and are getting stupid answers. You asked us to compare the effectiveness of a pipe bomb vs a cocktail, it's apples and oranges.

Google is a thing, go be stupid elsewhere.

>>31480822
My phone is making this paper unreabable but it doesn't appear to be in relation to shaped charges????
I've seen plenty of high speed footage of cone collapse and jet formation and there is definitely no plasma formed, the entire mechanism relies on pressures causing the metal to slow as a liquid, no plasma involved.
I can cite multiple sources from past and present stating plasma is not present and the whole topic of plasma in a shaped charge is seen as a joke tbqh

>>31481516
To flow as a liquid

>>31481311
I've researched it a bit. They used a nitroglycerin+oxidizer+stabilizer mix. The mixture was solid. The Russians had a similar formula. The source for this info was some random website. Can anyone present a more solid source or correct me if I'm wrong?

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I post it in every thread I come across.
Don't Fuck around with explosives if you don't know what you're doing.
The first thing you should look up is proper safety procedure. High school Chemistry and a highly pixilated infographic on organic perchlorates is not the level of knowledge you need to avoid blowing bits of yourself away from the rest of you.

>>31482046
Fuck off faggot

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>>31471687

>>31482046
We're never going to make it to the moon with that attitude.

>>31479911
there are so many reasons it wouldn't work

>>31472004
CTR at it again.

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>>31476958
Say SHTF and you need to stop the influx of the "Horde" from invading your qaint town. What explosive would be effective at demo'ing a road to the point where it is beyond usable?

>>31478161
no way, that has to be some kind of dis-info shit
if you wanted my IP you could have just asked

that kind of penetration depth with low density glass lens?
they havn't even made a metal casing for the glass, they've just left it in the open air!

and it doesn't look like they even mothered with scaled testing, they just picked some arbitary standoff distances and random glass they made and went from there

I wish I got paid to test that kind of shit

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>>31484004
no real point demo-ing a road anon

holes are too easy to fix temporarily by filling them in, and you can always...uh....drive around the hole
unless your "invaders" are actually senior citizens with mobility scooters, or other vehicles with similar off-road capabilities

you can block access in forested areas by felling trees in a certain pattern, or in mountainous areas by causing landslides

but I've never seen or heard of anyone destroying a road on flat land

>>31484252
What about for an overpass? Or a bridge?

>>31476184
the axle got fucked but the crew cabin is still intact they probably survived but severely concussed and broken bones.

t. FMF corpsman

>>31479178
>effective as a terror device
>effective
>as
>a
>terror
>device

did you even read what I posted or did you just want to throw your 2 cents in?

>>31486138
different anon, but have you heard about the Australian hawkeye?

I heard that the dutch got a few and one took a nasty mine hit
apparently the only injury was to a soldier who was lying across three seats
I heard they lost a wheel, but drove back to base on three

it's meant to have modular armour too; including angled base plates that sit under the vehicle, so a whole vehicle isn't put out of action by a mine blast

>>31474327
>squeeze it in your hand
gets me every time
kek

>>31471687
Isn't a "pipe bomb" type device more useful for detonating high explosives?

>>31487201
No, what you would want is...
A detonator.

>>31487215
A detonator is a Destructive Device and is NFA.

>>31487220
And a pipe bomb isn't?
Can we get some legal documentation in here declaring such?

>>31487222
So you buy your pipe bombs from the pipe bomb store along with your detonators rather than making your own low explosive detonator in order to set off high explosives? Congratulations, sir, on your...advanced thinking.

Homemade explosives caused horrific mass casualties in Northern Ireland.

FOR the EOD people on here try 3-2-1 bomb gone. Its a book by an EOD officer who saw some pretty evil shit at the height of the bombing campaigns in NI and survived.

Yes homemade can be lethal.

They also tend to kill the makers frequently.

>>31487242
>low explosive detonator
Nice oxymoron, really working on that gold star sticker here.

>>31471687
They go boom and make things break is that not good enough?

>>31476785
>how to take a screenshot
Maybe I've become too used to /g/ but still....that shot is from a PC and there's a fucking clearly marked button on the.....aaaaaaa....reeeeeeeeeeeeeeeee....


Thanks O-bama!

>>31472876
Your averge finngolian eating some kind of licorice candy or something.

>>31474299
>rdx
The fact that you still have enoungh fingers to post this means you've never tried to make it.

>>31476710

Anyone know of similar devices to this Picture?

I know theres a bunch of warsaw pact/combloc type ones but did nato countries and america ever have similar timed detonators?

or were they mostly secret squirrel/deniable spec forces type stuff?

>>31481516
>Jet Formation is shaped charge and ablatively-driven implosion of hollow cones.
>Not related to shaped charges.

I'm not even that guy, but you appear to be a 14 year old arguing about things you don't understand. Do not speak, listen. Learn. Become wise.

>>31475610
I remember during IED training the instructor taught us some shit about the use of spray paint flakes, I was interested in that shit.

He dumped some water into the dirt and it showed that it was a possible bomb making sight because the water reacted to the paint residue. Can you fill me in on what actually was happening?

>>31485698
that is perfectly fine, even if a bridgelayer tank could bridge the gap or sappers build a new temporary bridge or overpass; still a delay
Only real use to destroying a strip of road would be demoing a landing strip

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>>31489488
Didn't see anything about shaped charges when I scrolled through it.
You might wanna read a book, I recommend fundamentals of shaped charges like I recommended earlier in the thread, you might just learn a thing or two.

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>>31489488
2:21 PM <joeyrogers> Lol this paper is about explosively pumped flux compression generators, they are electrical devices, nothing to do with shaped charges.

>>31477115
Using a trip isn't against the rules, using a signature with every post like our friend here eodguy is doing?
That is actually against the rules lmao

>>31491647
Lol oops cought my nick in that copy/paste