Unseen, Unheard, and Utterly Devastating - Ramjet Artillery Shell
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- Опубліковано 22 чер 2023
- After years of grueling development and more than 450 preliminary tests, the United States military is poised to shatter the limits of long-range precision fire and usher in a new era of artillery supremacy. The breakthrough that military strategists have eagerly anticipated has arrived, and it is nothing short of a game-changer.
The Boeing and Nammo corporations have achieved a stunning first fire test of their Ramjet 155 shell. This revolutionary projectile has left US authorities positively giddy with excitement, as it can reach supersonic speeds, obliterate targets with laser-guided accuracy, and travel further than any conventional artillery shell in the market.
In essence, the Ramjet 155 fuses the best of both worlds, combining the accuracy of guided artillery with the power of a missile. Its air-breathing engine ignites after launch, propelling the projectile to speeds that defy belief. With its intelligent guidance system and unprecedented range, it is set to redefine the very meaning of artillery in the near future.
The Ramjet 155 also promises to solve the problem of gun tube wear and tear, as it doesn't require the same breach pressure as a regular projectile.
It's no wonder the arms industry is shaking in its boots at the prospect of such a game-changing technology. Other weapons manufacturers are already racing to incorporate this revolutionary weapon into their own plans for the future.
If the shell's final testing phase continues to succeed, everything points to an incredible shift in the world of artillery weaponry… - Наука та технологія
well that's what I call an abrupt ending.
Lol. Illustrative purposes😂
Maybe he was hit by a ramjet artillery round before he could finish the video 😂
Didn't give the Text to Speech or AI editor enough time, poor robots :C
Unusual for this Channel/Channel's are usually top quality...
Oh good! I was just about to start my usual swearing at the Internet provider.. 😄
I had asked my grandfather (an engineer)decades ago about this possibility.
The short answer was technology had not progressed sufficiently to be practical.
He said that I would see it in my lifetime.
Pleased to see he was correct.
The problem has never been the ramjet. We had ramjet shells back in the 80's at minimum that I know about anyways, and they probably had them before that I am simply ignorant of. The problem has always been guidance of shell. Errors at range vastly increase and therefore guidance is required. INS can now be fired out of gun barrels and was solved back in late 90's. Guided artillery launched from gun barrels is now possible. RAMJETS are much cheaper to manufacture and more important can be stored for LONG periods of time without fiddly bits needing maintenance. It is the perfect missile unlike those in use today.
At 4:25 the Hungarian guy Albert Fono back in 1915 suggested the use of ramjet in artillery, it took a hundred years to perfect it.
Basically, a missile shot through a howitzer.
Point!!
It's essentially a bolt gun but made for artillery
Kind of, yeah. ramjets are super-useful though, almost no moving parts. but you have to get them to mach 3 to start up.
Artillery can do that much more cost effectively than a rocket booster.
As a U.S. Marine artillery forward observer, I can tell you this is amazing tech. One shot hits at 150 clicks is a leap forward so large it's like a inventing the wheel again. Our enemies just got a new reason to worry. Unlike air power, artillery can sit there for days at the ready. And it's cheap compared to the cost of flying.
Artillery shells exceeded the speed of sound long before the the Soviet Union experiment. Heck, the old French 75 Model 1897 threw a shell at 1600 Ft/ 500 Meters per second.
For real. Most, (if not all non-mortar,) WWI artillery fired supersonic rounds. Maybe he means that the GIRD-08 was the first supersonic *rocket* artillery, which has some pertinence to the development of the V2 and the advent of modern rocketry, but it certainly isn't some groundbreaking event in the history of ballistics.
I made a wooden catapult in 1397, trow a shell 2800fps
the WWI Germans called the French 75 "the black butcher".
Ramjets have been around for over 70 years and we’re proposed for artillery decades ago. The physics for an artillery shell ramjet are a bit tricky because of the high speed requirements (which, to be fair, a solid rocket booster can potentially tackle) and rapid changes in air density over the projectile flight path, which would definitely complicate the air fuel mixture of a solid fuel propellant, never mind other challenges. I have to wonder if they really have the kinks worked out, how much it cost (especially compared to a GMLRS or ATACMS) and what trade offs it’s effects and targeting are.
If the engineers really solved the technical challenges and came up with a workable projectile that’s no more expensive than an Excalibur round to manufacture, my hats off to them. It would really be an impressive feat. With the A-10 retiring, this could fill ‘some’ of the gap in CAS with better fire support options for troops in the field and targeting for ground commanders.
Stirmtigers had them in world war 2. It wasn’t a jet, but it was a rocket assisted shell.
My question is: aren't shells suppose to have a payload? When you add the reactor, intakes exhaust, fuel and avionics what do you end up with? a very long range rifle grenade.
You need a shell of a large enough caliber, a very long barrel length, and most importantly, the ability to land on a specific target. Without accurate targetting and guidance, it's a useless exercise.
This is Boring, so I'll believe they've made something that is cheap and works only after they've sold a few thousand.
@@cgourinThere are plenty of shells already that don't have a payload in the sense of explosives, just a hard / heavy penetrator. Kinetic energy does the rest. In a shell like this the penetrator can be integrated into the inlet cone.
The V1 and V2 would be so proud of their great grand baby.
WHAT!!? 150Km?! Holy crap! As an Infantry Senior NCO this adds some serious capabilities our Red Legs deserve! I highly respect our mortar crewmen and Artillerymen so this is insane! I’ve seen the wrath of the 155mm M109’s in Iraq when an Iraqi mortarman pissed them off, 3 guns fired at him for half an hour, there was palm trees and car parts flying up in the air about 3 kilometers away! Pretty sure they got him that day, we never got another mortar round on FOB St. Michael’s again after that (2004, 2-6 INF, 1st AD).
How and why? If cannon artillery is fighting the deep battle guess what they aren’t doing, grunt? That’s right supporting your ass in the close fight.
@@kevinallies1014 no, for that we coordinate for a “creeping barrage” aka; walking sheath barrage where we use Arty as a shield as we advance. POG.
No kill like overkill.
@@markmulder9845 another wicked capability Red Leg can do is “direct lay” firing and using bee hive rounds which can decimate troop formations. If the enemy gets that far behind my line (Infantry front) then it’s been a very bad day since we failed to stop the advance. Once an enemy gets past the Artillery units, it’s total mayhem.
I imagine today there would be cell phone video of the return fire on Fake Newz CNN and they would be calling our troops killer of old ladies and kids.
Cool, read about this program a few years ago in Norway. Glad to see it seems to be on track. Having long-ranged pression guided artillery seems to be very important in a modern battlefield if you cannot achieve air-superiority.
😅
Even if you can achieve air superiority, because it's much cheaper to lob artillery shells at a target than it is to drop bombs from an aircraft.
@7:55 Below the Ramjet 155 is a GLSDB, another artillery shell-sized device with 150km range. The GLSDB, though, needs rocket launching tubes, like HIMARS uses. The Ramjet 155 looks a bit simpler, quite a bit bigger, and maybe faster at final impact. A Ramjet 155 would also have a traceable IR signature while a GLSDB is just a glider with no hot exhaust like the ramjet. Different tools, different jobs, but both simple, seemingly reliable, and relatively cheap.
This sounds like it would fix the Zumwalt's ammo problem. I wonder what the cost per unit is?
A lot . It’s a mini jet engine that you purposely explode and a guidance system. It flys farther, more accurate, and platforms that use this shell have a longer usable lifespan. You bet It’s gonna be expensive.
@@clickytheblicky9895 Yuppers, it's gonna be spendy. Even if they can eventually produce them for a few bucks on a 3D printer, they will also charge an extra 5 grand or so tacked on for R&D costs even with getting gov grant funding initially. That never seems to change.
Not gonna happen. According to latest announcement Zumwalt class is losing their guns and getting turned fully into arsenal ships armed with hypersonic missiles and lasers.
$43.87
I hope they do would love to see it with some big guns.
The ramjet shell may have ended the US Navy's railgun program. If the Ramjet 155 were upscaled to fit a 16-in Iowa-class battleship cannon, how far can it reach and how powerful would that weapon be?
Since conventional 16-inch rounds could reach as far as 24 miles (39km), it is likely that a ramjet version would offer a range closer to 75miles (120km).
The reason it would have a shorter range than the smaller 155mm artillery shells, is due to the massive weight & size of 16-inch shells. The extra mass would result in a shorter range, but would deliver a punch about 25x greater than the smaller 155mm rounds.
@@ericmcquistenwithout further material science advances or a NASA class shell...yep, and there's better munitions that can do similar damage.
@@blacklooneybird1828list them
That just leaves the mind boggling with ideas, that is an interesting thought experiment. Stick an Iowa class with a carrier battle group armed in such away , inside 4 to 5 hundred km's it would be like the finger of God. May have less range may have more.🤠👍🇭🇲
Old school meets new.
The following countries have ramjet 152/155mm rounds in final testing stages or starting production, China NIU155, India IIT-M, S, Korea GAM155, Russia Valac, and S. Africa ProRam.
Wow..that is mindblowing..stuff I would have never even thought of.
The Germans test fired a few ramjet shells in WW2 called the Tromsdorf Projectiles. The issue has generally been guidance. Laser Ring Gyros or MEMS gyros are needed.
The first I heard about something like this was in a science fiction novel. The difference was that in the novel it was 3d printed .308 bullets that used the air as fuel.
air is not fuel
@@cgourin I sapose not. Unless the different gasses in "air" are considered and how they behave under extreem compression conditions. It was a science fiction story after all. Apparently a decent idea though.
@@daniellore2961 Gyrojet
oxidizer.
Interesting! The RAP (Rocket Assisted Projectile) Round for the 155mm has been around for quite a while but this is definitely a step up in range and accuracy. Get Some!
Dark Tech is the best channel covering innovative military technology - second to none. Despite being an American channel there isn't the usual strong bias and tiresome preference to almost exclusively, only cover U.S. made equipment. *_Kudos._*
Well well, an artillery shell which could exceed the speed of sound in 1933. Who knows, perhaps rifle bullets may one day be able to reproduce this astounding feat? Where you fail to inform, you remain endlessly hilarious.
Yeah I was like WTF? Did a double take. Maybe he meant hypersonic?
Tried googling it but was like...Okay I just woke up. This is such a stupid question that google is sending me to "Help get off crack and meth" sites". Ha just playing but seriously... Artillery is loud BECAUSE it breaks sound. If it didn't it would be super silent and pretty awesome.
Subsonic artillery would be weird
@@pegcity4eva Far easier to hide from too. As you'd hear the round coming.
That's pretty amazing stuff!
The muzzle velocity of a standard 155 mm howitzer projectile is 853 m/s which is 2.5 times the speed of sound at sea level. As a former artillery officer, I was surprised by the statement that ramjet artillery shell is the first supersonic artillery round. Most modern artillery is supersonic.
The potential benefits of the ramjet artillery round are significant, however being supersonic is not one of them.
David Drake had these in his books 30 years ago. Nice to see it get started at least.
It's been worked on since back when he wrote his books.
Unfortunately the program stalled a couple times and languished for funding a lot between then & now.
Everybody wanted a "rail gun" (which has a barrel life measured in milliseconds ...don't get me started)
Anyway, they're only talking about it _now_ because it's ready for production. "Ramjet 155" is the "now for sale" name. it had other names in R&D.
I love the 155mm ramjet idea, especially that part where they talk about the
the...?
hahahahaha I see what you did there, man, you've got some sense of hu
Like the range. Thanks for sharing.
I wish they develop versions in 5" , 8" , 12" , 16" , and 18" then bring back battleships loaded with these.
The nice thing about hypersonic rounds is that no high explosive is needed for effect. The kinetic energy of such a round is all that is needed.....
Solid!
Top KEK!
Peace be with you.
45 years ago at Ft. Sill we were happy with 14-16 miles and a CEP of a hundred meters. We had big, heavy high explosive charges, here, you only need pinpoint accuracy and maybe 1/3 of the explosive charge.
Super cool, definitely has it's niche. Won't replace regular artillery any more than the cruise missile did. Idc how cheap you can make a ramjet, it's not as cheap as a shell full of explosive.
It potentially could. If it’s four tines as expensive as a normal artillery round but a target requires five or more normal rounds as opposed to one ramjet round. Etc....
Takes 5 to make sure target is destroyed
It wasn't designed to replace a regular arty shell any more than the Excalibur round or Copperhead round was. It just extends the range of a existing system and is much cheaper than a cruise missile.
Name an artillery shell that can hit a target 150 km away, that's short range missile territory and near 4 - 5 times the distance of a shell.
Would your rather be 93 miles from the front or 25?
With this you can be 25 miles back and still drop rounds 60 miles deep behind forcing the enemy to think about that mid range distance and only using a 155 howitzer.
The West currently has a hole at 40 to 150 km that it uses missiles to fill when possible but it ain't cheap.
Finally someone did a video on this they made one a few years back on this haven’t seen anything since 👍
Saw this model at the Paris air show. I wondered at the time how real it was, as you see a lot of paper aircraft/weapons there. Glad it's more than just moulded plastic. :)
I always use these shells at home and on work!
Reminds me of the Sniper Rifle for the first Halo game. That guns round supposedly had propulsion after leaving the gun as well
This must be a precursor for The Strategic Long Range Cannon!
Nice cliffhanger! 😁
I cant help but think, if we are hearing about this. . . What unknown horrors are in store for our enemies
Ramjet artillery shells are one of the two big reasons why I want to see a resurgence of 203 mm howitzers.
05:30 - Shells have gone supersonic since at least the 1880s.
Longer than that.
“…Or are you just glad to see me?”😂😂
Good history, but they missed a couple big ones. Germany had operational ramjet shells in WWII fired from their railway guns. Rockwell International demonstrated a GPS-guided ramjet shell in 1996, but it was considered too advanced and unnecessary by the U.S. Navy at the time.
related to the railway guns, according to my sources, the projected 280mm C3-shells accelerated to more than 1.800m/s, with an estimated firing range of about 350km.
The last part of this video is unseen, unheard and utterly gone for sure
Interesting concept for direct line of fire as well.
Pure impact energy ammo.
Looks great. Three questions, what kind of payloads, how much per round, and how fast can you produce them?
Hopefully quick. It’s artillery which you need ALOT of in a war. Especially a prolonged war. The guided ones cost around 250K. Ramjets are nothing new in the US. I couldn’t even guess the cost if it’s also guided
They payload is the missiles itself.
It's a kinetic kill vehicle, no explosives necessary.
Video cut short at the end bro xD
Yeah lol I thought I was tripping early
Could you imagine a guided ramjet mortar shell and the target lased by a forward controller😅
If this can be made as a tank shell (120/125mm) it could really be a game changer. When ATGMs can be loaded and fired at the same rate as HESH or FSDS that will really be a game changer.
I was thinking the same if the discarding sabot of a modern APFSDS round could be replaced with a cowling and the penetrator redesigned to function as both the payload and internal engine component tank lethality would take a massive leap forward. As I understand it a penetrators' ability to defeat armour is dictated by it's energy at impact and the length of the projectile this development would make the round's energy state less dependant on muzzle velocity and mass and the projectile could be far longer because the gun wouldn't have to be engineered to deal with high chamber pressures and recoil forces.
It was done back in the late 40's. RAP rounds.
An artillery shell that "can reach supersonic speeds"? Now you definitely have my attention!
Literally all artillery is "supersonic".
Given the extension of range of this round, I ask how much of a reduced explosive effect compared to the more traditional rounds.
For comparison the M777 howitzer traditional round M795 projectile has a 10.8kg explosive content and the longer ranged M982 Excalibur has a 5.4kg explosive content.
What is its explosive content?
Great idea... however with the use of electronic jamming becoming more prevalent and effective, it puts the long-term success of any of our GPS dependent weapon systems in question. That's why it's an absolute necessity to have large stockpiles of dumb weapons and ammunition and the well trained crews to use them effectively.
It still works as artillery. You could pepper a whole area at extreme range with these.
Also, nothing the military has been buying for the last 20 years "depends" on GPS. It usually _has_ it, but it's considered a fair-weather convenience if the GPS is actually working.
AMAZING
WOOOOAHH!! Game changer for not only the army but the navy as well.
"This" is why i was so happy when the USN stopped wasting money on their rail gun program.
Thing is... out of an 8" gun, this tech is enormously more impressive (than it is in a 155). At the bigger size you get into some exo-atmospheric flight path, and the range is insane.
I seen 175mm and 8" cannons as well as 155mm in vietnam never had these rounds called ram-jet . A charge #7 in a 155mm would lob a he round 6 to 9 mile with 1 minute to target. 4th div. LZ oasis.
@Dark Tech
Are you able to provide CEP numbers vs range?
Because it seems to be using just inertial guidance and that could mean that the CEP is greater than the kill zone/ casualty zone of the arty. Not a huge problem if you're using large numbers, but these rounds look like they're going to be expensive. Maybe even TOO expensive for massed arty strikes... But anyway, CEP numbers please?
Lmao why would he have CEP info? It's a valid question but even Excalibur's data hasn't been and won't be released. Source -Me former 13F
Seriously good question though, I'm not dogging on you, take care.
This is so cool.
This weapon could be used for anti aircraft if it can lock onto targets and shoot them down 100KM away. That’s insane.
What was the expanding wing dart, at the end?
Awesome
@ the 7:55 mark what is the projectile beneath the 155 ramjet in the display case???
Think nammo is working on a2a ramjet missile as well.
Nice
I remember when they tried this with the M155 Sheridan and MGM-51 Shillelagh missile. The idea was sound but the technology just was not there yet.
Always wondered how long until artillery tubes for missile launch (particularly smooth-bore)
How big is the warhead in one of these 155 shells? I didn't see a lot of room for a warhead in any of the diagrams, so is the kill kinetic in nature due to the shell's hypervelocity?
A possible naval gun and / or land to sea battery solution too?
Oh god its the guy who can't say "Chassis".
all is great but how many can you mass produce?
What fraction of the shell is payload and how does it compare to a modern guided shell?
You should mention what sort of payload the shell can carry. Also, at 6:55 you mention a max range of 100km but the diagrams show 150km. Can near peer enemies interfere with GPS signals to make these weapons less useful?
One of the challenges with jamming anything like this is the speed. By the time a supersonic shell gets in range of a jamming device, it's already most likely in the final few milliseconds of flight, and well into the terminal guidance phase. Even if the GPS signal is spoofed, there's very little time for the shell to change course. Maybe instead of a direct hit, the shell lands 6 feet away, but still obliterates the target.
Looks like the iowa class battleships are useful again. 16 inch ramjet shells!
What would be the useful payload penalty if you factor in the engine and fuel, and target acquisition systems?
Norway is already near production for their own shell
What would be the payload? A standard HE m107 and m795 have 24lbs of explosive for 100m radius and the RAP has about 15lbs for about 75m radius. The cone area doesn't seem large enough to accommodate an explosive payload and fuse that would cause acceptable damage. Pretty pointless to have long range precision if in the end its just going to mainly rely on kinetics to destroy the target. That would limit potential targets that could be engaged. Interesting concept though.
The payload is itself.
It's kinetic-kill. But not like a penetrator-rod. It goes mach 6-8 with it's ramjet, similar to a railgun. technically only about 20-30% faster than a penetrator rod, but the physics changes at that speed. in order for all of the material on impact to "get out of it's own way" fast enough, some of it 'has' to turn into plasma. And that makes an impressive energy release.
A plastic BB going mach 8 will put a hole in an armored personnel carrier big enough to pay for drive through. A 6"x12" or so shell? even though it's half empty by the time it gets there (spent fuel), it's gonna make a mess of anything it hits. and anything nearby gets showered with rifle-velocity molten metal bits.
It's impressive how much difference a couple mach makes as you approach hypersonic speed. It's also impressive how much more effort it takes to go that extra little bit faster hehe.
According to NAMMO the payload is about the same as a regular 120 mm shell.
@@tessjuel You are right. I was wrong. It's been a couple years since I was in the know on any of this, and it appears they have opted for a small warhead, and slower speed. It's about 3kg payload, which is 'maybe' enough for a tank kill. And flight speed of mach 3 ("maintained" by the ramjet).
This is different from what was being tested and worked on (mach 6, no payload, kinetic-kill).
I was also wrong about the guidance. It seems NAMMO is seeking to use GPS-only. Which is not terribly likely to work well if opposition uses GPS jamming/spoofing.
Not sure of the rationale for the changes. Perhaps cost per round. Or perhaps rushed to a completed product as an answer to new Russian 152mm artillery which goes 120km.
It seems, at least in theory, that such weaponry would go far to limit collateral damages in war, allowing for very precise targeting.
yeah, the current Excalibur round does exactly that as its a gps guided round (about $50k a round i think) this just has a lot more range and less explosive
If you know where your target is
The major problem with any GPS dependent weapons system is the electronic jamming capability of the enemy...
@@dennyliegerot4021 Yep I agree,
What if we mixed this tech with rail guns on navel vessels? could make the rail gun requirement specs lower just to meet the needs of the ramjet (no more huge power requirements/ faster ROF)
I do wonder what the trade off in firepower for range is. Most of the shell is a ram jet here. So I'd imagine much less explosives. Maybe the kinetic energy makes it up.
Not only that, but the price per shell will probably go up by 400-1000%, no?!
I don't see it as anything positive, until they get a guided version.
But then it will be an awesome addition to any military! 👌
@@tyrannusvenandi6930yeah it'll cost a medium towns annual taxes, every time they shoot one 😅
One thing to consider is that a lot of explosives in the US are TNT-based, and the Army -- a few years back -- was able to successfully solve the issues associated with moving away from TNT and over to "oxadiazole)bis(methylene) Dinitrate:" ... the bottom line is that this new stuff has about a 50% power increase. This means that shells of the same size will be more powerful.... OR.. .that shells of the same power could be made even smaller.
I mean a standard round is $300, so $1,200 or even $3,000 isn't a bad deal with doubling the range. Especially if it brings you out of range of retaliatory fire.
the cost per shell will be quite high though, right? and i recon that it will be harder to produce in high quantities too, so at best it will be able to do the work of some missile artillery with the convenience of being fired by tube artillery that is omnipresent hardware on the front lines. plus maybe some cost reduction in direct comparison to missiles, but still much more expensive than standard shells i guess.
Great explanation
Did I miss the place in the video when the cost of one of these artillery shells was mentioned?
Ahhh... shades of the "Gyrojet" rocket propelled bullets... but bigger, faster, more accurate, and more reliable.
I like it! Can I have one?
US Military: We need to use artillery because its cheaper than a missile which can cost a million dollars a piece.
US Industry: How about an artillery shell that is less powerful than a missile and costs a million dollars a piece?
US Military: Well one out of two aint bad... we'll take it!
This technology has been in use for more than 40 years already. Read up on the G5 and G6 systems.
I look forward to seeing a new class of battleships, providing stand-off land attack roles.
Wow, a supersonic artillery round? (@0:34) Just FYI, a "dumb" round has a muzzle velocity approximately 2.5 times the speed of sound.
Does this have any impact on naval or air warfare? It sounds like it cuts in at the edges of air launched weapons like AGM-154's, and being almost hypersonic, it'll be almost as hard to defend against as the promised hypersonic missiles. I think that maybe that could mean that they'll have impacts on naval warfare and point defense, too... I can imagine that maybe a new kind of battleship might make sense...
It is not the first artillery projectile to break the speed of sound. Cannonballs fired from artillery in European armies (and ships) were exceeding hte speed of sound over 300 years ago.
Artillery projectile have always been supersonic.
Where does the payload/explosive, go in the tube?
They should put a whistle on it! 😮😅
Is it a GLSDB there at 7:56?
As a couple people said, no make a Naval version to give the Zumwalt a tiny part if it's planned capabilities.
Gotta love Americans, something revolutionary comes out, we better make a documentary to show everyone.
Firing a jet-propelled missile?....that's really Dark Tech!... and it can ''navigate'' to?... wow!
Roger Ramjet and his eagles fighting for our freedom.
Hey, Volodimir, we wonder if you can do us a favor? Test out these new shells.
First artillery shells to exceed the speed of sound in 1933? They'd been doing it for a century by then.
Soooooo is there going to be a reupload to fix this videos issue or are you just gonna leave it messed up?
I'm wondering if this projectile or other projectiles like it can hit moving targets, like in a beach landing. If we could pick off a lot of an enemy's landing craft in the water it would help repel a beach landing.
The MMW seeker on Brimstone and Hellfire Longbow can do this. (Brimeston was based on Hellfire but the British weapon can be released supersonically ). These missiles move at 450 meters/second. The 57mm MAD-FIRES round that can be fired from a Mk 110 canon seems to have this type of seeker. It is intended to home on to both missiles and swarming boats so a shock hardened version must be possible.
Roger Ramjet and his Eagles
Fighting for our freedom
Fly through in and outer space
Not to join 'em but to beat 'em.
Sounds great, but how do you fire a hollow (pass-thru) tube from a gun? (palms forehead) That's right, you pop a drink coaster below the ramjet shell to seal it.
What cost per shell, how much explosive pay load
I wonder when we get the scaled down version for our pistols.
Is there a very slow echo?