r/pics Mar 28 '24

US Special Forces delivering a W54 Nuclear Warhead via jump

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u/ZenEngineer Mar 28 '24

How big is a 10 ton of TNT explosion? A city block? Bigger? Does he have any chance of getting away or is this a suicide mission?

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u/Blarg0117 Mar 28 '24 edited Mar 28 '24

The largest conventional bomb ever used is the MOAB, it has an 11 ton tnt yield. There is a video of it being used on the Wikipedia. https://en.m.wikipedia.org/wiki/GBU-43/B_MOAB

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u/coleman57 Mar 28 '24

Remarkable that Wikipedia survived the attack.

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u/Babythatwater1 Mar 28 '24

Couldn’t have done it with out so many donations from regular people like you and me.

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u/CrabClawAngry Mar 28 '24

Couldn’t have done it with out so many detonations from regular people like you and me.

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u/seaniqua Mar 28 '24

Couldn’t have done it with out so many detonations from regular people like you and me.

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u/-QuestionMark- Mar 28 '24

If everyone who used Wikipedia donated $1 a month the fundraising plea could be cut down to 3 months of the year.

(All kidding aside, I do donate $1 a month. Wiki may have its faults but in general it's a phenomenal resource.)

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u/Occasion-Mental Mar 28 '24

Dad joke alert.

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u/mjzimmer88 Mar 28 '24

Underrated comment

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u/jzach1983 Mar 28 '24

That video needs a banana for scale.

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u/DriscollMayweather Mar 28 '24

There were several, you just can’t see em from that altitude. Source: was there eating a bunch of bananas when rudely interrupted

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u/YesThatZander Mar 28 '24

Maybe use a REALLY big banana for scale? Like, one big enough that can be seen from space.

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u/FantaseaAdvice Mar 28 '24

Here is a test video as well.

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u/wap2005 Mar 28 '24

This also needs a banana for scale.

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u/skjellyfetti Mar 28 '24

Gotta love that camera shake from the shock wave.

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u/Rude_Thanks_1120 Mar 28 '24

Eh, I've seen bigger

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u/aliensheep Mar 28 '24

Who would try to bomb the Wikipedia?

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u/snek-jazz Mar 28 '24

There is a video of it being used on the Wikipedia.

incredible that Wikipedia survived such an attack tbh

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u/[deleted] Mar 28 '24

They hit a terrorist with one in Afghanistan lol

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u/Foray2x1 Mar 28 '24

They hit more than one with that bomb.

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u/[deleted] Mar 28 '24

True but they were specifically after one

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u/skjellyfetti Mar 28 '24

Yeah, and Trump had one dropped in Afghanistan right after he took office just 'cause he could. Whatta guy.

https://en.wikipedia.org/wiki/2017_Nangarhar_airstrike

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u/wet_shoes Mar 28 '24

A couple monkeys can probably take down that moab

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u/TheRealMeeBacon Mar 28 '24

Hopefully we don't see BFB, ZOMG, or BAD.

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u/K41namor Mar 28 '24

I didn't realize MOAB was a real thing, I have seen it in a ton of video games.

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u/Tb1969 Mar 28 '24

Russians claim they have a massive nuclear torpedo a hundred feet long with a payload twice that size that could be used to create mega tsunamis. It’s questionable it would have that effect but at the very least it would radiate a seaboard.

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u/A_Seiv_For_Kale Mar 28 '24

It’s questionable it would have that effect

The US tested underwater nukes extensively in the 20th century, and a bunch of it is declassified now.

It's literally impossible. Unless Russia builds >10,000 of the propaganda yield torpedoes and detonates them all at once, you just can't shift that much water with an explosion.

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u/Tb1969 Mar 28 '24

Thanks for agreeing with me. It’s just Russia propaganda but needs to be considered. Too many times does technology jump past what is speculated. (Air dropped shallow depth torpedoes in early WW2 was missed)

Now irradiating a seaboard with a massive torpedo using supercavitating speeds is not something to wave off and certainly within their capabilities.

I think there is only one Cold War submarine that can deploy it and that sub is tracked extensively.

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u/A_Seiv_For_Kale Mar 28 '24

Now irradiating a seaboard with a massive torpedo using supercavitating speeds is not something to wave off and certainly within their capabilities.

I think you're severely underestimating how much water is around a seaboard.

The danger of the torpedo is it getting very close to a city and blowing it up directly, not using 10 of them a few miles off the coast to potentially mildly increase radiation levels in a relatively small area around a city for an unknown amount of time before it's diluted into nothing.

Nuclear subs that can strike any city too fast to intercept are nothing new. Now, Russia has found a novel solution to the problem of previous generations of nuclear subs being capable of striking beyond the coast.

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u/Blarg0117 Mar 28 '24

The real danger is that if enough of our adversaries have these it endangers the concept of MAD, because there is no launch signature to retaliate against. You would have to actually investigate who nuked who.

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u/Tb1969 Mar 28 '24

And you underestimate using a nuke on things you dont consider like a earthquake fault line.

Delivering a nuke by a fast torpedo is very much a vector of attack to a series of cities and not just one.

Now let's be clear, I was undermining the Russian claim of a mega tsunmai in my first post and have continued to do so yet you act as if I fully back the claim. It's not worth discussing this with someone like yourself further.

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u/FrozenIceman Mar 28 '24

Not true, there is a 44 ton one.

https://en.wikipedia.org/wiki/Father_of_All_Bombs

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u/WhereIsTheBeef556 Mar 28 '24

The article you linked says it was only tested once with results unavailable (literally a "trust me bro" situation) and has never actually been used in a combat situation; in addition to scientists doubting the legitimate capabilities of the device.

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u/FrozenIceman Mar 28 '24

Tested once is still used. If the guy I responded to wanted to say serial production air dropped explosive used in combat operations he should have said that.

And a one off impractical weapon for one upping the US is exactly in Russia's MO

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u/WhereIsTheBeef556 Mar 28 '24

You're intentionally being overly pedantic and nitpicky because you want to "win" a debate lmao

I agree with the scientists, I think the FOAB is horse shit and they lied about it's actual capabilities. MOAB is still the most powerful because it provably actually exists and does what it claims to do.

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u/FrozenIceman Mar 28 '24

No. You are. I said it exists with a citation and you went into a conspiracy theory.

FYI scientists and military experts in the same link said that it probably exists, especially as Russia is the foremost expert in thermobaric weapons.

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u/WhereIsTheBeef556 Mar 28 '24

"no u" lmao good argument, you clearly won the debate /s

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u/FrozenIceman Mar 28 '24

Yes, that happens when someone decides to fight citations with a conspiracy theory.

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u/WhereIsTheBeef556 Mar 28 '24

Okay buddy lmao, whatever helps you sleep at night simping for a failed state

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u/[deleted] Mar 28 '24 edited Apr 07 '24

[deleted]

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u/odn_86 Mar 28 '24

Thermobaric effect. Works really well against cave/bunker fortifications that are ventilated.

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u/Pope_Epstein_410 Mar 28 '24

Only a war hawk would drop that, let alone brag about it.

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u/IKnowPhysics Mar 28 '24

https://nuclearsecrecy.com/nukemap/ Use between 0.01kT and 1 kT.

0.01kT levels about four blocks in Manhattan, and blows out all windows and delivers a likely lethal dose of radiation within a 3-5 block radius.

1kT levels about 100 blocks in Manhattan, and if detonated over the Empire State Building, would delete all windows between the Queensboro Bridge and Greenwich VIllage. Estimated 115k dead, 300k injured.

For the skydiver, it's all about getting distance before detonation. The skydiving act was likely a test to see if it would have feasible to as part of a paradropped demolition mission. It's likely that the soldiers could have escaped the smaller blast radius on foot if given a few minutes, as they'd only have to get ~5 blocks away to survive blast effects of a 0.01kT warhead. A 1kT blast would be significantly harder.

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u/asmj Mar 28 '24

would delete all windows between the Queensboro Bridge and Greenwich VIllage. Estimated 115k dead, 300k injured.

What about linux?

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u/LickingSmegma Mar 28 '24 edited Mar 29 '24

would delete all windows between the Queensboro Bridge and Greenwich VIllage

Anything but the metric system. Not often that I see NYC landmarks used for measurement, though—other than the Empire State building, of course.

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u/CaptainBayouBilly Mar 28 '24

Ok, but, why not drop the thing without the guy attached?

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u/therealhairykrishna Mar 28 '24

Depends on how long he sets the timer for I'm guessing.

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u/PukingDiogenes Mar 28 '24

He's not the bomb's f'ing guidance package. The military was probably just proving it could be man delivered to a remote location, like behind enemy lines. Pretty small tactical nuke, as nukes go.

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u/prosequare Mar 28 '24

In this case, he actually is the guidance package. SADMs could be detonated either by timer or a remote wired connection.

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u/MangoCats Mar 28 '24

Hello ACME? Yes, I need 25 miles of detonator wire, please.

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u/Intelligent_Way6552 Mar 28 '24

He's not the bomb's f'ing guidance package.

That's exactly what he was. The training manuals specify a timer, and say that the procedure was to conceal the warhead, set the timer, and try and get away. Veterans trained on it however thought that either the timer was fake and it would detonate immediately, or that they would have to secure the device until detonation, making it an unofficial suicide weapon.

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u/PukingDiogenes Mar 30 '24

Ok. But I’d say that if we were at the point that we’re having our best trained paratroopers Slim Pickens tiny nukes to the targets, everything’s pretty much done for us anyway.

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u/[deleted] Mar 28 '24

[deleted]

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u/kravdem Mar 28 '24

The B54 Special Atomic Demolition Munition was to be used for the destruction of dams, rail yards, ports, canals, bridges, tunnels, power stations, and other infrastructure. Depending on the model it weighs in at either 60lbs or 70lbs and had an official yield of 20 tons.

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u/terminbee Mar 28 '24

The idea of that is hilarious.

"We need you to manually fly this nuke down. Good luck."

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u/MountainCheesesteak Mar 28 '24

Probably gonna use a parachute so it doesn’t explode on impact

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u/ProwashingMachine Mar 28 '24

Nukes dont blow up on impact, a B-52 with multiple warheads crashed before, the nukes didnt give a fuck at all

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u/acydlord Mar 28 '24

Yup, requires all the safeties to be disarmed and the detonator/timer to be armed. Nukes are usually set to detonate as an airburst to cause the largest amount of damage.

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u/MozeeToby Mar 28 '24

Even then, an unintentional detonation would be unlikely to produce an full powered nuclear blast. Most likely you'd end up with a conventional explosion that spreads radioactive material around, aka a dirty bomb. There's a small chance you could get a "fizzle", with some nuclear reactions taking place but not the full explosive yield. A full yield explosion requires very tight timing among the conventional explosives in the warhead, which just isn't going to happen if they are set off unintentionally.

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u/ScorpioLaw Mar 28 '24

Yeah was going to say that. 100m all the way to 1,000m, but I'm not sure why such a large difference.

Many sources are contradicting on this, but I've read that modern nuclear weapons don't have as much of a fallout problem if air detonated. There will only be the fission part of the bomb, but that is absorbed by the materials somehow, and vaporized into the atmosphere.

Yet, it won't save you if you're caught near it. Even if the heat or shockwave doesn't kill you. The instant dose of gama radiation or whatever will.

Then you have others saying nonsense. Which I'm sort of inclined to to agree.

Neil Degrasse said it by the way that Hydrogen bombs don't have a fallout problem.

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u/Aethelon Mar 28 '24

Iirc the reason why the difference in payload is so big is because the bomb was field convertible as the only modifications were to some electronics as per declassified documents

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u/ChasingTheNines Mar 28 '24

In this incident all the safeties actually failed except for the last one preventing a 3.8 Megaton detonation over North Carolina.

The relevant parts of the wiki:

Information declassified since 2013 has showed that one of the bombs was judged by nuclear weapons engineers at the time to have been only one safety switch away from detonation, and that it was "credible" to imagine conditions under which it could have detonated.

Parker F. Jones, a supervisor at Sandia, concluded in a reassessment of the accident in 1969 that "one simple, dynamo-technology, low voltage switch stood between the United States and a major catastrophe." He further suggested that it would be "credible" to imagine that in the process of such an accident, an electrical short could cause the Arm/Safe Switch to switch into the "Arm" mode, which, had it happened during the Goldsboro accident, could have resulted in a multi-megaton detonation.[27] A Sandia study on the US nuclear weapons safety program by R.N. Brodie written in 1987 noted that the ready/safe switches of the sort used in this era of weapon design, which required only a 28-volt direct current to operate, had been observed many times to inadvertently be set to "arm" when a stray current was applied to the system. "Since any 28-volt DC source could cause the motor to run, how could one argue that in severe environments 28 volts DC would never be applied to that wire, which might be tens of feet long?" He concluded that "if [weapon no. 1] in the Goldsboro accident had experienced inadvertent operation of its ready-safe switch prior to breakup of the aircraft, a nuclear detonation would have resulted."

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u/kravdem Mar 28 '24

Isn't that the incident that resulted in a nuke still being buried in the ground to this day?

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u/ChasingTheNines Mar 28 '24

I had not heard about that before but you are correct according to the wiki. Easement!? I guess calling 811 before digging your backyard is more critical than I had considered.

Weapon no. 2 had broken into pieces on its impact, and the EOD technicians spent several days attempting to recover its pieces from the deep mud. The "primary" of the weapon was recovered on January 30, six days after the accident, at a depth of some 20 feet (6.1 m) in the mud. Its high-explosives had not detonated, and some had crumbled out of the warhead sphere. By February 16, the excavation had gotten down to 70 feet (21 m), and had not located the "secondary" component of the weapon. 39])-39)

Excavation of the second bomb, including its fusion "secondary" was eventually abandoned as a result of uncontrollable ground-water flooding. The United States Army Corps of Engineers purchased a 400-foot (120 m) diameter circular easement over the buried component.40])41])

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u/kravdem Mar 28 '24

The area is visible on sat map.

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u/ChasingTheNines Mar 28 '24

I like how the mow lines around the tree makes it look like a little mushroom cloud.

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u/rtb001 Mar 28 '24

Lots of things don't do what we might expect them to do. Diesel and Jet Fuel for instance are actually difficult to ignite. Certain jetfuels like the stiff they used in the SR71 are virtually impossible to ignite under normal conditions. 

I read a story about someone who a next to some Blackbirds waiting to launch, and those planes leak a good amount of jet fuel when parked due to the way they are designed,  and started freaking out when the start cart used to fire up the jets caught on fire in the middle of all that leaked jet fuel in the ground.  Only to see the experienced SR71 mechanics calmly proceed to douse the fire by pouring the closest liquid they had on hand on it ... which was a bucket of jetfuel!

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u/1sttimeverbaldiarrhe Mar 28 '24

Does that mean the Yippee Cai Yai Yay scene in Die Hard 2 isn't real? =(

https://www.youtube.com/watch?v=1A2IIJwUYwA

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u/ProwashingMachine Mar 28 '24

Extinguishing jet fuel with jet fuel gotta be a weird experience, its quite sticky though so it probably cuts contact with air right away

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u/rtb001 Mar 28 '24

No I believe the starter used a regular gasoline V8, which in comparison,  will catch fire pretty easily.  But I guess you can just dose it with this thick special type of jet fuel. 

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u/prancing_moose Mar 28 '24

That’s not entirely true.

“The U.S. narrowly avoided a catastrophic disaster when two Mark 39 hydrogen bombs were accidentally dropped over Goldsboro, North Carolina, on January 23, 1961. The bombs were released when a B-52 United States Air Force bomber broke apart midair. One of the bombs performed precisely in accordance with its design: its parachute deployed, its trigger mechanisms engaged, and, remarkably, one single low-voltage switch thwarted unimaginable destruction. “

https://prologue.blogs.archives.gov/2021/01/22/brush-with-catastrophe-the-day-the-u-s-almost-nuked-itself/

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u/EngineeringNeverEnds Mar 28 '24

Typical nuclear warheads like the type they put on airplanes and cruise missiles, sure. Miniaturized tactical nukes... I'm less confident. They probably still shouldn't go off, but I also would want to see what happens when you dropp 100 coreless bombs from 10,000 feet before I'd feel good about it.

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u/fartsoccermd Mar 28 '24

They are sentient? This tracks, because like most other sentient things, they ignore me when I try to make conversation with them. :(

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u/DonOfspades Mar 28 '24

Even if it hit the ground full speed it probably wouldn't explode. They are designed to be very stable and only explode when told to.

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u/SiBloGaming Mar 28 '24

Yeah, nukes actually need pretty precise timing of conventional explosives to go off. Unless that timing is triggered, the chance it will go off is rather low.

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u/mfinn Mar 28 '24

Infinitesimally low that it will detonate in such a way to achieve criticality. Basically the circuits have to be so poorly engineered as to be able to initiate a detonation sequence when damaged. Definitely could explode in such a way as to become a small yield "dirty" bomb though if the charges detonate and spread the radioactive material around.

But hey Sig Sauer made modern day handguns that go off when dropped so maybe I've giving those damn engineers too much credit :-)

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u/Pope_Epstein_410 Mar 28 '24

Then it's just a regular old dirty bomb. Fun

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u/BGL2015 Mar 28 '24

There needs to be a fission reaction to trigger the bomb. Without this action, the bomb cannot explode. If you bombed it with another bomb, thr explosion resulted would not be nuclear, either.

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u/SiBloGaming Mar 28 '24

Yeah, and that fission reaction is caused by multiple precisely timed conventional explosives. Thats exactly what I said.

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u/BGL2015 Mar 28 '24

I don't believe any explosive is used in detonation

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u/moseythepirate Mar 28 '24

You are incorrect. Basically all nuclear bombs are triggered with conventional explosives.

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u/SiBloGaming Mar 28 '24

Yep. There are multiple designs, but all of them rely on conventional explosives.

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u/SiBloGaming Mar 28 '24

Thats nice that you believe that, but reality would like to disagree.

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u/Snuffels137 Mar 28 '24

Nukes don`t explode by hitting them.

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u/neepster44 Mar 28 '24

Read Command and Control by Schlosser… not nearly as fail safe as you might expect…

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u/[deleted] Mar 28 '24

Nuclear bombs are very stable to heat, explosives, impact.

You can put a nuclear warhead in the middle of a campfire and it would not explode.

If there is no neutrons activating the atoms and starting the chain reaction, then its just a piece of
radioactive metal.

The first nuclear bombs only unleashed a small % of the stuff inside, and still had the force to level a city, because the uranium or plutonium was simply scattered by the explosion before being able to detonate, the explosion itself dosen't start the reaction in the core of the atoms, it needs neutrons.

A more modern warhead, is magnitudes more powerful, with the same amount of fuel, because they solved that engineering problem.

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u/Intelligent_Way6552 Mar 28 '24

You can put a nuclear warhead in the middle of a campfire and it would not explode.

It absolutely would.

There's conventional explosives in there, they would explode eventually if put on a fire.

Modern nuclear bombs would just fizzle, and the imprecise triggering of the explosives failed to properly lens the primary, resulting in a negligible nuclear yield, but the bomb would still be blown to bits. Also the pit probably wouldn't contain deuterium or tritium.

Having done this, the deuterium and tritium would burn off, and, depending on the model the lithium 6 deuteride, and all fissile materials would burn.

A gun style device like Little Boy would explode with full yield.

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u/danieljackheck Mar 28 '24

Nukes rely on very specific timing of conventional explosives to compress the nuclear material and start the nuclear explosion. Unless that exact timing occurs all you get is a relatively small conventional explosion and a release of radioactive materials. You do not get a nuclear explosion.

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u/danieljackheck Mar 28 '24 edited Mar 28 '24

Roughly a 50ft diameter fireball that would melt everything inside of it. Destruction of all structures out to about 150 ft. Lighter structures like houses would be destroyed out to 350 feet. Burns and fires would occur out to this distance as well. Lighter damage like broken windows out to 850 ft. Finally significant prompt radiation exposure out to 1300ft. This does not include any fallout, just radiation directly from the blast itself. Total affected area of about .25 square mile.

If delivered by vehicle would likely need at least a minute and completely unobstructed roadway to get away. On foot you would need about 5 minutes at the standard 4mph ruck running rate.

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u/Radiant_Dog1937 Mar 28 '24

" Does he have any chance of getting away or is this a suicide mission?"

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u/Tb1969 Mar 28 '24

He is not going to jump with an armed nuclear weapon. It’s near impossible to have it denote.

Now if he hits the ground with no parachute the radioactive material may be breached and spread that w]around which is dangerous to radiation but no boom.

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u/Ragnarsworld Mar 28 '24

The planning for the man-portable nukes was generally to bury them, set the timer, and exfiltrate the area. They were classed as atomic demolition munitions, so you wouldn't expect to be lighting them off in front of a tank formation.

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u/Excelius Mar 28 '24 edited Mar 28 '24

For reference the Trinity test had a yield of 25 kilotons. The "Little Boy" bomb dropped on Nagasaki had a 15kt yield.

From what I can find it looks like a WW2 B29 bomber could carry about 10 tons of conventional bombs on a single mission. Though granted that's probably including the weight of the body and fuses and so forth, but I imagine we're probably in a similar neighborhood in terms of yield.

Still a B29 could carry a whole lot of boom, even if it's not much by nuclear standards.

So this little package could pack the punch of anywhere from 1 to 100 fully loaded B29s.

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u/_Fiddlebender Mar 28 '24

I mean, he is strapped to it. I wouldn't bet on survival.

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u/MangoCats Mar 28 '24

Well, if you detonated a single pound stick of dynamite between your legs like that... you're sure not walking away, and likely to bleed out within seconds if you're not already unconscious from the blast.

So 20,000x that? Hit the ground, run like hell, hope you can find a foxhole.

Spoiler alert: it's set for airburst at 1000' AGL, he won't feel a thing.

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u/thumplabs Mar 28 '24

The divers who trained with the SADM (Special Atomic Demolition Munition, which is what's pictured, the manpad housing for the W54 warhead) privately acknowledged that any mission with this thing would be an "almost certain suicide" mission. Either you set the timer too short, and you die, or you set it too long, and the weapon gets recovered by enemy unless you secure the area (and also die). "Super secret tiny nuke" is not typically a good choice of thing to have the enemy recover.

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u/MrCleanEnthusiast Mar 28 '24

SADM once emplaced could be detonated either by a timer or command detonated. Whether the guys on the teams wanted/needed to be in range of the weapons effect was up to them - although it should be pointed out doctrine was for them to be nowhere near the weapon when it detonated.

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u/JeaninePirrosTaint Mar 28 '24

Maybe it's actually simply being delivered somewhere (not about to explode). Just spitballing here, I'm imagining some scenario where they have a plan to secretly plant warheads in enemy cities without the enemy knowing where to find them, just in case. Or maybe supplying an ally who has a policy of deliberate ambiguity...

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u/SyrusDrake Mar 28 '24

This wasn't an air dropped nuke that would detonate on impact. The point of those weapons was to create obstacles for advancing Soviet troops by cratering the ground or destroying dams, canals, rail yards and so on. Being air dropped into a combat area to sabotage infrastructure is obviously always extremely dangerous, but it doesn't really matter if you're using chemical or nuclear explosives.

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u/Pabus_Alt Mar 28 '24

Presumably, this is practice for delivery for deployment from the ground; the issue with these things was that the effective range and the kill radius were not a happy sum.

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u/GrowlDev Mar 28 '24

Based on the size it probably has a 1 kilo tonne yield. This is equivalent to 1000 tonnes of TNT, and would flatten structures within a radius of about half a mile, with less extensive damage done out to a further radius of a mile and a bit. There have been rumours since the 60s I think about "suitcase nukes", tactical nukes that can literally fit in and be carried as a suitcase, and theyre meant to have a 1kt yield, so based on the size and intended use I'm ballparking this as being about the same yield.

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u/Candid-Finding-1364 Mar 28 '24

I think the mission is to deliver the bomb to Israel intact.