I don't remember what was my problem with this video after we filmed it but for some reason I wanted to wait couple months that turned into couple years but here it is now! :D I think it was the unfortunate misshap with similar things on other channel that happened just after we filmed this and I didn't want to get people confused. Also there is some design choices that we can improve in the future but can't go too deep into those since I don't want to share too much information how to turn your spicy sausage into mail box pierced 10 000 000 :D
I miss Swedish Dynamite, learned how to say, 'fire in the hole' in Swedish from him.. something like, "tänt var det här!" Is that what this translate to or not?
A 50mm thick cube with the hole in the top. They put a bowling ball and an anvil on top and put round metal objects inside containing c4 if you know what I mean. I can't say the name my comment will be removed and launched them sky high. Then they doubled down on the c4 and the cube nearly took them out because it blew the welds out. Well worth watching. 👍
I didn't see the "Check Engine" light come on; I think you blew it's brains out! I am just old enough to remember when any American citizen could walk into any rural hardware store and buy, legally and without permits, dynamite. Such good times.
Wow, Finland figured out how to move the whole country to the Southern hemisphere so that they are having summer in January! Another innovation from the Finns!
I made a tiny one with 1.5cm diameter about 20 years ago. It did punch right through, but the energy was so high that the hole partially closed back up again because the metal behaves more like a liquid at this energy-level. An HE-armor-piercing arrow head is not only possible but would even be a terrifying weapon in the wrong hands.
Symmetry is very important in cumulative charges, you need to get the blasting cap near perfectly centered, the packing of the explosive charge needs to be perfect without any voids and the liner needs to be of uniform thickness and preferably very ductile material. Any defects will result in the convergence of the liner disrupting and the coherence and peak velocity of penetrating mass flow will reduce.
Also the general rule of thumb is that the stand-off distance increases penetration, until it starts losing penetration. The flight-time he references is minimal as RPG-7 has piezo-electric trigger at the front that generates electricity when it compresses just a little bit. With the speed of electricity (in practice, instant), the biggest delay comes from the shockwave progressing from the detonator to the main charge and then to the copper liner. The timedelay will be so short that i'm gonna say the warhead travels millimeters rather then 'many centimeters'. WW2 had "charge diameter" of about 1 (how many diameters of the charge, it can be expected to penetrate) and it has increasing overtime, being currently something like 7+. Increasing that number (or even reaching that) requires some insane engineering not many individuals can reach. They now have data for two standoff distances, so they should try increasing it to more then what it was in the first attempt. Then try distance between the first and second shot. That should give good indicator with 4 attempts at into what direction the penetration is going when increasing/reducing stand-off distance.
in the intro you can see the liners and they look more like 3d printed copper infused pla then spun and machined copper metal. Pushing plastic explosives into the 3d printed housings is never gonna give as good a result then a cast explosive does. also some rpg 7 warheads use explosive lenses to improve the performance.
Did you remember to include a copper cone in the warhead. That's the thing that that squishes and forms the hypersonic penetrator. Without that, you've just got a jet of hot gas / plasma / fart?
6:39 I see what your problem is. That engine was a 1.6L D-series with only SOHC. No V-TEC on those. If it had had a B18 or something, it probably would have made it.
I came to make the same point, that an RPG is normally travelling pretty fast towards the target, which would keep it squishing in. The shaped charges the Slow Mo Guys have for static use sit much closer to the target.
Would love a set of the tungsten dice, just not even close to being in my budget at the moment, after having to purchase a new vehical, but great Video!
The audio volume between the explosions and voices is fairly large, perhaps crank up the voice volume so we can hear what you are saying without giving everybody else in the house a heart attack with every explosion. Also, Happy new year! 😀
Create a tube with a cone shape in it so the wide end faces one end of the tube so that the top inch of the cone would poke through the other end of the tube so that there’ is at least 3/4” of metal remaining around the widest part of your cone shape. Then create a cone of copper to fit into the cone shape in your tube, but, make sure that the copper cone does not go to a complete point making sure it has a flat top down about 1” from the top of your cone. Make the tube so that you can screw a sleeve down to around 1/2 way down the outer of your tube so that a substantial lip can be introduced to the wide opening at the front of your tube holding in the copper cone. To screw onto the other end of the tube, create another sleeve which has within it a chamber of the same diameter as the top of your copper cone with at least a 1” wall thickness into which you can tightly pack a sh*t load of exp**sives so that it screws down tightly over the flattened tip of your copper cone with the ex**osiers touching the tip of your cone which, naturally, should be exposed to the chamber above it. Then, find a way of introducing a fuse without losing pressure through the fuse coupling. Then, find a way of placing a large mass behind the chamber end of your charge to secure the charge in place, and, place your big bit of tank steel plate armour at the wide end of your copper cone. That should really be pretty good!
Only Lauri could come up with an insane and entertaining experiment like this... brilliant. If you can test rpg, why not test if some crazy person stole HPCs fire truck and goes on a spree like the killdozer?
It would be definitely interesting to see the RPG detonation with different distances. For example every distance with 10 mm differences around the area where you expect the most efficiency. This would nicely show the accuracy needed for the timing when the thing is actually shot in practical use. For example, you could shoot a line in the plate to see where on the line the hole puching performs the best. The resulting plate could have 10-20 blast results with hopefully the middle hits being more or less perfect hits and the results on either side show the results when explosion happens too close or too far away from the plate. It would be interesting to see if you could see from the plate damage if the explosion happened too close or too far from optimal.
I didn't think shape charges would work when housed in 3D printed plastic. Looks like I am mostly correct. It KIND OF works, but not NEARLY as well as a real, metal housed shaped charge.
the housing isnt the issue, its the 3d printed copper infused pla that they seem to have used for the liners. using pressed in plastic explosive also allows for a lot of gaps ruining the concentricity of the charge.
Imagine that amount but half a year it's bathed in water or icy slush with salt in it and half a year showered with gravel and sand. There is a yearly inspection for cars that require fully healthy bottom from the car (no holes, not even one) and many cars fail at it.....
Yup. Most car models, if not all, are definitely not seigned for northern climates. The only car I've ever experienced that actually worked well in this climate was a Lada (The western version of the East German/Soviet Trabant). That thing didn't rust, didn't leak, and even on the coldest winter morning it started immediately as soon as you turned the key. Of course, being Soviet German engineering, it was ugly as sin and somehow had a worse aerodynamic profile than a brick wall.
When you shot it in the air, the plate could move. When you shot it on the ground, the force was all transferred to the plate and not wasted in the air.
As a pc nerd, I'm very impressed with the bullet-proof gaming pc case. But how are you able to keep any or the components from overheating? There is absolutely zero airflow whatsoever LOL
We use both metric and "freedom inches". I prefer standard because it's what I'm used to, and see no real advantage in switching to "French's inches". Meanwhile, other individuals want me to switch to the "French inch" because "Europe is doing it".
It went through at the end because you put it on the ground. While on the stand the explosion blew the plate away. On the ground it was stuck in place so the projectile blasted through.
The final test results are not because of the reduction in freedom inches but because of the test setup. First attempt on the wood pole, second attempt on the ground. With the plate on the ground all the force is transferred into the plate, when hanging on the pole much of the force is lost as the plate is tossed across the yard.
the change of the charge was not what yielded your change in penetration, or at least it's probably negligible compared to the real one IMO: Going from unsupported horizontal to a vertical shot into the ground removed the momentum component of the target after all the energy transfer was complete, so that energy went into (or through) the plate instead of rebounding it off into the distance...
There’s another TH-cam channel that demonstrates shaped charges, talking about the complexity of amount of charge, the shape of the cavity in front of the charge, standoff distance and like that. I’ve asked them several times how *small* a shaped charge can be before it doesn’t work any more, like will shaped charge bullets work. I know that you prefer to go big, but do really small,shaped charges sound like something you would be interested in trying?
I don't remember what was my problem with this video after we filmed it but for some reason I wanted to wait couple months that turned into couple years but here it is now! :D I think it was the unfortunate misshap with similar things on other channel that happened just after we filmed this and I didn't want to get people confused.
Also there is some design choices that we can improve in the future but can't go too deep into those since I don't want to share too much information how to turn your spicy sausage into mail box pierced 10 000 000 :D
Spicy Sausages FTW. 😜
I don’t mind that it’s an old video, I like them all
pretty fun experimentation 😎
I thought it was strange that it just snowed here in Wisconsin for about the 37th time this year and you're in Finland running around in shorts.
RPG is not just a shaped charge, it fires a molten copper rod into the armour
"It's still running because it says Honda on it." 😂 Very accurate.
It only stopped because the name got removed.
@@Travoid 🤣😂👍
Holy moly I thought the car was still running after that first shot after explosion went off! I was like “what, no freaking way!” Lol
Had to put small joke there :D Too good opportunity not to do that :D
@@Beyondthepress We must Deal with it. 😉
Same, I was like there is no way all the plug wires and valve train survived that!! 😂
Me too. In Russia, Honda never dies!
I thought it was too
Dice ad was the best one ever. Top tier
Fantastic sales pitch for the dices - "If you don't want to be soft and smooth, check out our dice" and "Upgrade your life by our dice". Magic guys! 🙂
I SO want those. I have to figure it into my budget. They are awesome.
(Psst.Oskar. "Dice" is already plural. 😉✌)
solid, love it.
When you hear “kolme kaksi yksi” you know some shit about to go down. 🤘
If you hear that in the woods in Finland, hit the deck!
So that's how that is spel💥👀
I miss Swedish Dynamite, learned how to say, 'fire in the hole' in Swedish from him.. something like, "tänt var det här!" Is that what this translate to or not?
The "you might recognize what steel plate this is" edit is classic!
What video is that from?
A 50mm thick cube with the hole in the top. They put a bowling ball and an anvil on top and put round metal objects inside containing c4 if you know what I mean. I can't say the name my comment will be removed and launched them sky high. Then they doubled down on the c4 and the cube nearly took them out because it blew the welds out. Well worth watching. 👍
Brilliant video, But image if it would have gone in another direction, Frightening just thinking about it.
@@hyposez1129 This is the original video with the Steel Box: th-cam.com/video/du5H1AtdZYc/w-d-xo.htmlsi=Y_SVK4sMaq6Ys2o0
@@WoodworkerDon Thank you!!
"... it says Honda. That's Japanese and it means that it works."
I didn't see the "Check Engine" light come on; I think you blew it's brains out!
I am just old enough to remember when any American citizen could walk into any rural hardware store and buy, legally and without permits, dynamite. Such good times.
Wow, Finland figured out how to move the whole country to the Southern hemisphere so that they are having summer in January! Another innovation from the Finns!
I made a tiny one with 1.5cm diameter about 20 years ago. It did punch right through, but the energy was so high that the hole partially closed back up again because the metal behaves more like a liquid at this energy-level. An HE-armor-piercing arrow head is not only possible but would even be a terrifying weapon in the wrong hands.
Now my friends all look at me funny when I do a 3-2-1 countdown in Finnish.😂
Symmetry is very important in cumulative charges, you need to get the blasting cap near perfectly centered, the packing of the explosive charge needs to be perfect without any voids and the liner needs to be of uniform thickness and preferably very ductile material.
Any defects will result in the convergence of the liner disrupting and the coherence and peak velocity of penetrating mass flow will reduce.
Also the general rule of thumb is that the stand-off distance increases penetration, until it starts losing penetration. The flight-time he references is minimal as RPG-7 has piezo-electric trigger at the front that generates electricity when it compresses just a little bit. With the speed of electricity (in practice, instant), the biggest delay comes from the shockwave progressing from the detonator to the main charge and then to the copper liner. The timedelay will be so short that i'm gonna say the warhead travels millimeters rather then 'many centimeters'.
WW2 had "charge diameter" of about 1 (how many diameters of the charge, it can be expected to penetrate) and it has increasing overtime, being currently something like 7+. Increasing that number (or even reaching that) requires some insane engineering not many individuals can reach.
They now have data for two standoff distances, so they should try increasing it to more then what it was in the first attempt. Then try distance between the first and second shot. That should give good indicator with 4 attempts at into what direction the penetration is going when increasing/reducing stand-off distance.
in the intro you can see the liners and they look more like 3d printed copper infused pla then spun and machined copper metal. Pushing plastic explosives into the 3d printed housings is never gonna give as good a result then a cast explosive does. also some rpg 7 warheads use explosive lenses to improve the performance.
Hannah's laughter always brings a delightful charm to the videos. 🤭🥰
Did you remember to include a copper cone in the warhead. That's the thing that that squishes and forms the hypersonic penetrator. Without that, you've just got a jet of hot gas / plasma / fart?
5:53 When the VTEC kicks in yo
Maybe if it had a VTEC engine. 🧐 That's not a VTEC engine that car. 🤓
7:01 Still my favourite sound from HPC.
That's a spicy meatball!!
Hm .. i think you should have put the charge UNDER the mailbox, that way it could have been a nice company to the car that you blasted into space :)
The explanations in Finnglish are just so much better.😁
6:39 I see what your problem is. That engine was a 1.6L D-series with only SOHC. No V-TEC on those. If it had had a B18 or something, it probably would have made it.
Maybe the warhead should have something back it up with weight to make up for the non-forward momentum that a rocket would usually have.
I came to make the same point, that an RPG is normally travelling pretty fast towards the target, which would keep it squishing in. The shaped charges the Slow Mo Guys have for static use sit much closer to the target.
Would love a set of the tungsten dice, just not even close to being in my budget at the moment, after having to purchase a new vehical, but great Video!
I was just watching the OG red hot steel vs frozen lake video and BOOM new video, yay
There is a channel called Just Rolled In … they need to see the Honda. It would fit in.
“My old man is a television repairman, he's got this ultimate set of tools. I can fix it” Jeff Spicoli in Fast Times at Ridgemont High. 1982
"freedom inches" that was awesome lol :-)
Every Honda kid is heartbroken right now.
Something uncanny about the stuffed animal 😶🌫️
"sharp corners and uncomfortable to use". Now THAT'S a proper sales pitch! 😁
"Stop revving the engine, you'll cause it to blow out!"
"I'm not gonna blow out the eng-" 5:35
What were the warning lights that came on the Honda dashboard after the explosion? Check engine light?
The audio volume between the explosions and voices is fairly large, perhaps crank up the voice volume so we can hear what you are saying without giving everybody else in the house a heart attack with every explosion. Also, Happy new year! 😀
RIP my neighbor's eardrums
Shaped charges are like guns, except the barrel of the gun is also an explosion.
Absolutely incredible.
Create a tube with a cone shape in it so the wide end faces one end of the tube so that the top inch of the cone would poke through the other end of the tube so that there’ is at least 3/4” of metal remaining around the widest part of your cone shape.
Then create a cone of copper to fit into the cone shape in your tube, but, make sure that the copper cone does not go to a complete point making sure it has a flat top down about 1” from the top of your cone.
Make the tube so that you can screw a sleeve down to around 1/2 way down the outer of your tube so that a substantial lip can be introduced to the wide opening at the front of your tube holding in the copper cone.
To screw onto the other end of the tube, create another sleeve which has within it a chamber of the same diameter as the top of your copper cone with at least a 1” wall thickness into which you can tightly pack a sh*t load of exp**sives so that it screws down tightly over the flattened tip of your copper cone with the ex**osiers touching the tip of your cone which, naturally, should be exposed to the chamber above it.
Then, find a way of introducing a fuse without losing pressure through the fuse coupling.
Then, find a way of placing a large mass behind the chamber end of your charge to secure the charge in place, and, place your big bit of tank steel plate armour at the wide end of your copper cone.
That should really be pretty good!
Only Lauri could come up with an insane and entertaining experiment like this... brilliant. If you can test rpg, why not test if some crazy person stole HPCs fire truck and goes on a spree like the killdozer?
You may have to change the fuel line and some filters.
It should buff out. 😂
Howdy from Texas! Nice hat!
Add copper cones/plates to create an EFP copper jet. Very slicey and spicey.
Great video - cheers Team.
There was 3d-printed copper cone ;)
@@Beyondthepress I was wondering :) Moar Sposlians !!
Those metal dice look cool
Thanks! I also really like the design, not the best rolling but looks the nicest :D
Those DICE look SHARP! You might want to also sell another line that has more rounded corners.
So the fancy wooden tables don't get dinged.
i was so confused at 5:35, i thought it did not stop running, because there was another track of audio playing.
Chrimanny guys! How bout a volume warning for the booms!! I think you blew out my right headphone!
Hannah’s hat slaps!
Hanna should have her own channel 😊
Fantastic 🤘
Your local supermarket didn't have shape charges and warheads in stock? That's quite disappointing! 😁😜🤘
Can you please also make a depleted uranium dice? I have a Geiger counter I want to try out. Three of them actually.
Great video guys I loved when you blow the honda engine up so funny 😂😂😂😂😂😂😂😂❤
Nice Shapes!!!
Shape charge mailbox tickled me haha
Imagine setting it off on a overfilled box
It would be definitely interesting to see the RPG detonation with different distances. For example every distance with 10 mm differences around the area where you expect the most efficiency. This would nicely show the accuracy needed for the timing when the thing is actually shot in practical use.
For example, you could shoot a line in the plate to see where on the line the hole puching performs the best. The resulting plate could have 10-20 blast results with hopefully the middle hits being more or less perfect hits and the results on either side show the results when explosion happens too close or too far away from the plate. It would be interesting to see if you could see from the plate damage if the explosion happened too close or too far from optimal.
Its time to Service the engine ! Check Engine Light is ON
Not even adding a big turbo running with 30lb of boost and a 200 shot of N20 could do that to the Honda when it went bang.
I didn't think shape charges would work when housed in 3D printed plastic. Looks like I am mostly correct. It KIND OF works, but not NEARLY as well as a real, metal housed shaped charge.
the housing isnt the issue, its the 3d printed copper infused pla that they seem to have used for the liners. using pressed in plastic explosive also allows for a lot of gaps ruining the concentricity of the charge.
Almost made me want to buy a honda.
Almost.😉👍
These blasts sound so good 😎
good vid, need more explosion stuff!!!!!!!!!
Pretty sure my neighbors think I'm setting of charges now too, thanks.
What's the solution to life? ALWAYS MORE MEATBALL!!!
266,865 Miles. Did I read that right? If so, very nice!
Kilometers!
It was just getting broken in.
Imagine that amount but half a year it's bathed in water or icy slush with salt in it and half a year showered with gravel and sand.
There is a yearly inspection for cars that require fully healthy bottom from the car (no holes, not even one) and many cars fail at it.....
Yup.
Most car models, if not all, are definitely not seigned for northern climates.
The only car I've ever experienced that actually worked well in this climate was a Lada (The western version of the East German/Soviet Trabant).
That thing didn't rust, didn't leak, and even on the coldest winter morning it started immediately as soon as you turned the key.
Of course, being Soviet German engineering, it was ugly as sin and somehow had a worse aerodynamic profile than a brick wall.
When you shot it in the air, the plate could move. When you shot it on the ground, the force was all transferred to the plate and not wasted in the air.
Wow very interesting 🎉
Having watched this channel for years I find myself doing countdowns in Finnish...
Great video .
Damn, VTEC be kicking in _hard_ 😂
Spicy Sausage and meatballs..... Thats gold.... There is a specific formula for designing shape charges.
But what about the pink furry doggy? did it survive?
4:31 if you slowly tap 20 times on timestamp you may lol
and then click 5:55 🙂
Lol perfect @@David.5035
As a pc nerd, I'm very impressed with the bullet-proof gaming pc case. But how are you able to keep any or the components from overheating? There is absolutely zero airflow whatsoever LOL
There was airflow.
@wanhapatu from where?
"Here vee go!" Haven't heard that forever! 👍Hot pee in the snow!😆
I FCK n love this channel !
Bring on the Slow Mo Guys"
We use both metric and "freedom inches". I prefer standard because it's what I'm used to, and see no real advantage in switching to "French's inches". Meanwhile, other individuals want me to switch to the "French inch" because "Europe is doing it".
"Too much VTEC, yo!"
Good grief the Honda shit itself. Holy shit that was brilliant!!
Awesome video as always … looks like that motor didn’t have vtec anyway it’s a d16y7 motor
Thank you very much, very beautiful video!!!
You need to collab with The Slow Mo Guys🎉🎉🎉🎉
The Honda warranty will certainly cover the damage. It only needs a little elbow grease to buff it out.
2:35 - Adding more explosive is always a good compromise. !!! ;-)
I actually miss my civic now. Used to own three of them actually.
7:23 that headache is going to linger long time :D
It went through at the end because you put it on the ground. While on the stand the explosion blew the plate away. On the ground it was stuck in place so the projectile blasted through.
Much easier to perform valve adjustment now!
The final test results are not because of the reduction in freedom inches but because of the test setup. First attempt on the wood pole, second attempt on the ground. With the plate on the ground all the force is transferred into the plate, when hanging on the pole much of the force is lost as the plate is tossed across the yard.
This is really good science
The engine was really good!
Not a hot knife through butter. Yep, Finland. Hot pee through snow. 😂
Are you incorporating a wave shaper in the shaped charge?
Doesn’t look as bad as Jamie’s engine from Pfi speed the other month.
the change of the charge was not what yielded your change in penetration, or at least it's probably negligible compared to the real one IMO: Going from unsupported horizontal to a vertical shot into the ground removed the momentum component of the target after all the energy transfer was complete, so that energy went into (or through) the plate instead of rebounding it off into the distance...
this
@alttabby3633 i see what you did with your avatar there. It also would not work in the horizontal 🤣
There’s another TH-cam channel that demonstrates shaped charges, talking about the complexity of amount of charge, the shape of the cavity in front of the charge, standoff distance and like that.
I’ve asked them several times how *small* a shaped charge can be before it doesn’t work any more, like will shaped charge bullets work.
I know that you prefer to go big, but do really small,shaped charges sound like something you would be interested in trying?
I was wondering if the edges of your dice were razor sharp. I'll buy some now knowing that. Just like cutting billets.
Should have tested with reactivate armor.
Tavarish wants to rebuild the Honda now
This is my favorite Civic generation and it makes me somehow sad to see it destroyed :(
VTEC just blew up, yo!
The dice corners look too sharp to roll right, but maybe I'm wrong.
I just wonder, if the holes are drilled doesn't that make the dice more likely to roll to the 'heavy side'??