u/DefinitelyNotMeee

Hollow secondary?

Hollow secondary?

While reading the post about "odd Intellipedia caption", I noticed something in the picture that was indeed 'odd' to me - the section labeled as 'spark plug' was hollow.

Part of the picture in question:

https://preview.redd.it/edb76sthpy1h1.png?width=382&format=png&auto=webp&s=29ee6cfb4e5accd5ddba143b8c010909ac0924a4

I remember reading the spark plugs described as 'rods of plutonium' and I assumed that meant a solid chunk of metal instead of a tube. But after some thought, it made sense, since the desired effect is to produce neutrons at the moment of maximum compression.

But that led me to this question: would there be any benefit from making the whole secondary a hollow tube, with a hole in the middle (filled with the same interstage material as the rest of the casing), 2 tampers/pushers (one outer and one inner) to achieve 'double, or inward-outward' compression of the fuel in between?

If we use the picture above, the spark plug would be replaced by somewhat larger/thicker U-238 tube, and the tube would be opened on both ends.

EDIT: to make it clearer what I mean - trigger ablation of both tampers at the same time to send them against each other, compressing the fuel in between.

reddit.com
u/DefinitelyNotMeee — 3 days ago

RU POV - Summary of latest missile strikes on Ukraine - AMK_Mapping

Last night, another large-scale, combined Russian missile and drone attack was carried out on Ukraine.

Missiles launched:

~32 Kh-101 cruise missiles launched from 4 Tu-95MS strategic bombers at their launch lines over Vologda Oblast.

~11 Iskander-M/S-400 ballistic missiles launched from OTRK installations south of Pochep, Bryansk Oblast.

~7 Iskander-K cruise missiles launched from OTRK installations in eastern Kursk Oblast.

~7 Iskander-M/S-400 ballistic missiles launched from OTRK installations in eastern Kursk Oblast.

~4 Iskander-M/S-400 ballistic missiles launched from OTRK installations northwest of Klintsy, Bryansk Oblast.

~3 Kinzhal hypersonic aeroballistic missiles launched from 3 MiG-31K fighter jets at their launch lines over southwestern Ryazan Oblast.

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Total missiles launched:

~32 Kh-101 cruise missiles
~22 Iskander-M/S-400 ballistic missiles.
~7 Iskander-K cruise missiles
~3 Kinzhal hypersonic aeroballistic missile

~64 missiles in total.

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Ukrainian air defence work:

As of the time of writing, it appears that Ukrainian air defence was able to intercept at least 13 Kh-101 cruise missiles, 3 Iskander-K cruise missiles and 3 Iskander-M ballistic missiles.

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The main targets for this strike was Kyiv and central Ukraine. The following was targeted:

- Warehouse facility in Kyiv Oblast (50.41858, 30.2994) by ~4 Kh-101 cruise missiles.

- Starokostyantyniv Airbase, Khmelnytskyi Oblast (49.74643, 27.2701) by ~3 Kinzhal hypersonic aeroballistic missiles.

- Kremenchuk Oil Refinery, Poltava Oblast (49.16888, 33.46296) by ~2 Iskander-M/s-400 ballistic missiles.

- Gas station in Kyiv (50.400872, 30.684892) by ~1 Kh-101 cruise missile.

- Residential building in eastern Kyiv (50.403209, 30.655081) by ~1 Kh-101 cruise missile.

- Multiple unknown targets in eastern Kyiv by ~6 Iskander-M/S-400 ballistic missiles

- Multiple unknown (likely defence-related) targets in southwestern Kyiv by ~5 Iskander-M ballistic missiles and an unknown number of Kh-101 cruise missiles.

- Unknown target in Kozyn, Kyiv Oblast, by ~4 Iskander-K cruise missiles.

- Unknown target in Dvrz District, Kyiv, by ~4 Kh-101 cruise missiles.

- Unknown target in northern Kyiv (50.506950, 30.495200) by an unknown number of Kh-101 cruise missiles.

- Unknown target near Kremenchuk, Poltava Oblast, by ~2 Iskander-M/S-400 ballistic missiles.

- Unknown target near the the northeastern outskirts of Kyiv by ~2 Iskander-M/S-400 ballistic missiles.

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Keep in mind, the numbers of missiles launched may be slightly higher than what I've listed, as the number of missiles detected is sometimes lower than actual launches.

u/DefinitelyNotMeee — 8 days ago

UA POV - Germany and Ukraine seal 'Europe's largest' drone deal - TVPWorld

This is interesting:

On Tuesday, Germany's defence ministry said it would pay for hundreds of Patriot air defence missiles from US defence group Raytheon and launchers for IRIS-T air defence systems from Germany's Diehl Defence.

tvpworld.com
u/DefinitelyNotMeee — 8 days ago

Submission statement: While the blockade remains in effect, the plan to escort ships through the Strait is 'paused', according to Trump. The justification is supposed to be a progress in negotiations with Iran.
The more interesting part is what Marco Rubio said to reporters at White House - the 'Operation Epic Fury' is over.

Given what happened last year, one can safely assume it's not over at all and this is just a pause to rearm before the next round of war starts again.

u/DefinitelyNotMeee — 16 days ago

>The issue of air defense systems in the regions on the frontline, which are supposed to be the first to repel attacks from large drones (which are increasingly being flown by the Ukrainians), remains unresolved.

>According to the paperwork and reports from local commanders, we have plenty of such air defense systems, and all of them are supposed to fire at flying drones, but this is not the case. Comrades in the military consider this a problem that needs to be addressed. I understand that some don't want to reveal their positions, but then why report that you carried out fire impact on the enemy's flanks? Not to mention the "Yelki" (the weapon's effectiveness is very high), but there's no permission to open fire on drones unnecessarily, because it's accountable - if you miss, you have to answer for it, and not many people want to answer in the army now, and there's already too much to do.

>In short, this issue needs to be resolved. I think there are many solutions. First of all, at least don't lie (though I sometimes understand you...).

Quite an interesting comment about the issues with intercepting Ukrainian drones. According to the author, it's not technical, but systemic organizational problems that prevent effective use of interceptors.

I remember Fighterbomber complaining about similar problems in the Russian Air Force. Anything proactive is suppressed or directly punished; nobody wants to take responsibility for anything because they know from experience it will be used against them at some point, etc.

Reminds me of the times under the communist rule, where the most important skill was to know how to shift blame onto others, or at least spread the blame as widely as possible, because there surely would be someone well-connected who would sweep the issue under the rug.

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Original text

Вопрос ПВНов в регионах на передке,которые по своей сути должны первые отбивать налеты крупных дронов, (которых всё больше и больше летает со стороны хохлов) остается открытым.

По бумагам и докладам командиров на местах у нас таких ПВНов пруд пруди и все с них стреляют по летящим дронам,но это не так. Товарищи военные считают это проблемой,которую нужно решать. Понимаю,некоторые не хотят палить свои позиции,но тогда зачем докладывать,что вы производили огневое воздействие на крылья противника. Это уже не говоря про "Елки" (эффективность оружия очень высокая),но разрешения без надобности открывать огонь по дронам - нет ,ибо она подотчетна,промажь - отвечай, а отвечать в армии сейчас мало кто хочет,и так всяких дел много.

Короче,нужно решать данный вопрос,решений думаю много, первым делом, хотя бы не врать (хотя иногда понимаю вас...).

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reddit.com
u/DefinitelyNotMeee — 17 days ago

Interesting article focusing on the part of the Iranian nuclear program that somehow slipped under the radar - plutonium left in nuclear waste produced by their civilian nuclear reactor at Bushehr.

thebulletin.org
u/DefinitelyNotMeee — 17 days ago

>The Special Tribunal being set up will prosecute Russia for the same crime of aggression that Nazi German leaders were found guilty of in the Nuremberg trials at the end of World War II.

We are really not going to avoid WW3, are we?

u/DefinitelyNotMeee — 17 days ago

Note to mods: since this is related to Russian drones, I used RU POV, even though the source is a Ukrainian TG channel and the video was (presumably) filmed by Ukrainians as well.

Text from TG (autotranslated)

>The "Geran-2" has received a new fuselage and a launcher for air-to-air missiles.

>The Alabuzsky plant, which produces the "Geran-2" UAV, has manufactured a new body specifically for the integration of air-to-air missiles.

>The R-60 missile is placed on top of the fuselage and is connected to the aircraft by a specially manufactured launcher (in the photo, behind the missile). A separate recess has been made for it in the body. That is, if we previously saw makeshift mounting, now it's a serial factory solution.

>On these modifications, combat units are not found, and a modification of the fuel tank design has also been noted.

u/DefinitelyNotMeee — 19 days ago

Text from TG (autotranslated)

>The "Kalashnikov" concern announced the start of serial production of the unified smoke grenade RDG-U. The first batch has already been delivered to the state customer.

>The RDG-U is positioned as a means of operational camouflage to shield personnel, small units, and equipment from targeted fire.

>The declared feature is a combined principle of operation:

>- first, the explosive section triggers, which quickly forms a dense smoke cloud

>- then the smoke (smoking) part is activated, which maintains the curtain of aerosols

>It is also stated that the weight of the grenade will be approximately 700 g. The body is made of composite material.

u/DefinitelyNotMeee — 20 days ago

Text from TG (autotranslated)

>SBS missiles hit 4 Su-57 and Su-34 aircraft at the "Shagol" airbase in Chelyabinsk, Russia, 1700 km from the Ukrainian state border.

>Freedom-loving Ukrainian Birds on April 25, 2026, paid a courtesy visit to the "Shagol" military airbase in Chelyabinsk, Russia

>As a result of satellite reconnaissance, the General Staff confirmed the impact of at least three deep strike weapons with varying degrees of damage on the following combat aircraft:

>•2 units of Su-57 fighters
•1 unit of Su-34 fighter-bombers
•1 unit of Su-57 modification

>*UPD on the satellite image, the remains of a destroyed aircraft servicing vehicle, which was located between the Su-57 aircraft, were recorded.</b>

>**The destruction of multi-purpose fighter-bombers Su-34 and fifth-generation fighters Su-57 is of critical importance for reducing the enemy's strike potential. The Su-34, as the main strike

>platform, is capable of carrying a wide range of guided bombs and missiles, delivering strikes on critical infrastructure, military objects and civilian targets from a distance of up to 1000 km. Each destroyed Su-34 means a reduction in the number of

>air strikes, saving the lives of civilians and reducing the burden on air defense systems. The Su-57, as the most modern Russian fighter with reduced visibility technologies, poses a particular threat to aviation and air defense systems. The estimated price of one Su-34 is $35–50 million dollars. The cost of the Su-57 is $100–120 million dollars per unit.

u/DefinitelyNotMeee — 21 days ago