ChrisO Profile picture
Jul 25 4 tweets 2 min read
An interesting snippet giving an insight into what it's like to be hit by a #HIMARS strike:

(R2): We came, we now live here with scouts, two days ago they had an arrival in their building. Some shit that you cannot hear arriving. It just whistles for two seconds, then bam-bam!/1
(R1): Maybe this silent Polish shit?

(R2): No, no, it’s some MLRS like Grad or Uragan, but it’s silent.

(R1): Maybe the fucking Hummers or Hammers?

(R2): Not Hummers, what are they called…

(translation by @mdmitri91)
/2
(Parenthetical note: HIMARS rockets hit at a speed of about Mach 2.5. The first thing likely to be audible from a HIMARS impact will be the explosion, as they're travelling far faster than sound - much like the old German V2s.)
(Interestingly, the sound in the first second or two is exactly the bam-bam sound described by the Russian speaker. I wonder if that might be the supersonic shockwave arriving ahead of the explosion?)

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More from @ChrisO_wiki

Jul 25
1/ The war in Ukraine has been a disaster in many regards, but the divisions and destruction inflicted upon the Orthodox Church have been particularly grievous. In this final 🧵, I'll look at the role that Orthodoxy has played in the Ukraine war.
2/ For the first part, on the Russian Orthodox Church's relationship with the Russian state, see:
3/ The second part, on Russian Orthodox Patriarch Kirill's curious financial affairs, is here:
Read 44 tweets
Jul 24
Multiple videos shows thermite incendiaries falling on densely populated civilian areas of central Donetsk – a clear war crime, as such munitions are banned from usage against civilian targets. But this incident raises more questions than answers. /1
Thermite is a pyrotechnic mixture of metal powder and metal oxide. It burns at up to 2,200°C (4,000°F). It can't be smothered or be extinguished by water. It can melt through steel and causes horrendous injuries – 5g of burning thermite on the skin can incapacitate a person. /2
It's packed into 9M510 hexagonal magnesium prisms, each 40 mm long by 25 mm wide, which are explosively ejected from 9M22S unguided rockets fired from Grad or Tornado rocket launchers. The rockets have a range of 20 km (12 miles). Each contains 180 thermite elements. /3
Read 26 tweets
Jul 19
More on bridge-busting: an update to a thread I posted two months ago on the likelihood of Ukraine being able to take down the Crimea/Kerch bridge (actually bridges) with the US-made HIMARS rocket artillery system. /1
In the thread, I noted the difficulty of taking down bridges from a distance with anything short of a large laser-guided bomb. Note that the long-range ATACMS rocket that HIMARS can fire only has a 500 lb / 247 kg warhead - 1/4 of the weight of a 2,000 lb BLU-109/MK 84 bomb. /2
Ukraine doesn't appear to have been given any ATACMS missiles yet. It does however have M31 guided missiles, which have an even smaller warhead (200 lb / 90.7 kg). And we now have direct evidence of how well it performs against a bridge. /3
Read 19 tweets
Jul 19
Remember those 'biolaboratories' that Russia claimed the US had secretly built in Ukraine (a claim that originated with the US far right)? They're actually being used to create mutant Ukrainian super-soldiers, according to a bonkers report published by Kommersant. /1
The Russian parliament has established a 'parliamentary commission for investigating the activities of US biolaboratories on the territory of Ukraine'. Not surprisingly, it's come up with some startling preliminary findings. /2
According to co-chairs Konstantin Kosachev and Irina Yarovaya, analyses of the blood of captured Ukrainian servicemen shows they have been subjected to "secret experiments" which resulted in their transformation into "the cruelest monsters". /3
Read 14 tweets
Jul 19
@KentSorensen6 Let's do some figures here, shall we? In 1991, Ukraine's Air Force inherited from the USSR 6 brigades and 4 regiments of S-300s, plus some extra S-300s assigned to the Ukrainian army. /1
@KentSorensen6 A single brigade may have a hundred or more launchers and more than 400 missiles. A regiment has up to 48 launchers with 192 missiles between them. So those 6 brigades and 4 regiments potentially account for over 3,000 S-300 missiles in Ukraine alone. /2
@KentSorensen6 Now consider that Russia inherited the bulk of the USSR's equipment, and that the system has been in use for over 40 years with more than 20 variants of missiles. It certainly has far more launchers and missiles than Ukraine. /3
Read 4 tweets
Jul 18
News that Russia is firing S-300 surface-to-air missiles (Ukrainian example shown below) at ground targets is producing quite a lot of comments along the lines of 'OMG Russia is desperate'. I think that view is mistaken. A short 🧵. /1
It's easy to picture a surface-to-air missile: it's a ground-launched rocket that flies at extremely high velocity to target and destroy enemy air vehicles. But the Russians did things a bit differently with the S-300. /2
Designed in the late 1960s and 1970s, the S-300 uses over 20 missile variants. Russia currently uses the 5V55K, 5V55R, and 48N6 missiles with high-explosive fragmentation warheads weighing up to 144 kg. /3
Read 20 tweets

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