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Jakub Janovsky Profile picture
Jakub Janovsky
@Rebel44CZ
Military history, SCW, OSINT, space, electric cars. NATO/EU supporter. Former Bellingcat contributor. Oryx Blog Administrator. https://t.co/8gzCIdzfzB
Jan 29 • 7 tweets • 2 min read
While on paper this idea might make sense, multiple factors make it far less practical and/or difficult or implement: The number of Russian T-55s and 62s in storage that is in repairable condition isnt all that great - and using them as APCs would mean that they cant be used to replace losses of tanks, ARVs, etc. Image
Jan 12 • 12 tweets • 2 min read
/thread/
An explanation of Oryx methodology regarding equipment losses: Oryx loss lists are based on visual evidence.

Exceptions where visual evidence isnt available are made only in rare cases where the losses are officially confirmed by the side that suffered them, or if confirmed by very reliable sources for the side that suffered those losses.
May 15, 2024 • 32 tweets • 5 min read
A long thread about commercial and government alternatives of Starlink mega-constellation - plus some info about Starlink and alternative approaches to build an alternative without breaking the bank. Let's start with the current status of Starlink and what makes building such a satellite mega-constellation so hard and expensive and how Starlink is unique (at least for now).
Mar 11, 2024 • 4 tweets • 1 min read
As usual, there are a bunch of problems with this CNN report:
1. The Russian figure is supposed to be all-calibers while the Western figure is 155mm only - The Russian equivalent (152mm) is around half of those 3M. 2. Western artillery supplied to Ukraine is more accurate - so you need fewer rounds to achieve the same effect
Mar 4, 2024 • 10 tweets • 2 min read
/Thread/Rant/
About expanding the Ukrainian mobilization and gross incompetence in the management of some parts of the military: 1. Delaying expanding mobilization because it will be unpopular is beyond idiotic - you will still need to do it later anyway and by delaying the decision you will meanwhile take more casualties and lose more territory than you otherwise would
Feb 10, 2024 • 4 tweets • 1 min read
This is the important point - given the prevalence of GPS jamming and SpaceX only knowing the approximate location of terminals, SpaceX can either provide service coverage over the frontline which means also Russians who are close to UA positions, or not provide service to anyone in the area. And figuring out which terminals are operated by Russians and which by Ukrainians is non-trivial. If you want to avoid accidentally cutting off UA units from service, you can't afford to make mistakes.
Jan 14, 2024 • 8 tweets • 2 min read
Whoever believes the nonsense written in this thread should check if their theories are at all viable in the physical reality we inhabit.

Not only that thread completely ignores aspects like the time and resources Russia will need after the war in Ukraine (whenever it ends) to rebuild its forces enough to even begin to contemplate ideas about even a limited clash with NATO, but the theory it presents is pretty much just a wish for the (much more powerful) opponent to just give up
Dec 8, 2023 • 23 tweets • 4 min read
/thread/ This was overall an excellent article from @Justin_Br0nk , but I would poke a few holes into it: 1. Since most of the US ground forces would have a minimal role to play against China and the USAF asset reallocation would be limited by what airbases in the region would be made available
Sep 7, 2023 • 4 tweets • 1 min read
Your regular reminder that Starlink is a usually (unless obtained as ITAR-restricted version) a civilian service with terms of service that ban integrating terminals into weapons. Musk is often behaving like a fool but 99.9% of Starlink terminals were unaffected by restrictions. Ukraine has been able to continue conducting naval drone strikes - either with the US DoD Starlink terminals or some alternatives.

If you think Elon has too much power over Starlink, ask relevant governments to build something comparable.
Jul 7, 2023 • 5 tweets • 1 min read
IMO, this article based on the @kielinstitute data that also cites our (@oryxspioenkop ) data is the work of people who are bad at math and missed multiple factors that invalidate their work.

bloomberg.com/news/articles/… 1. It doesnt account for equipment Russia pulled out of storage

2. It ignored that only some of the captured vehicles (IMO around 1/3) became operational with the side that captured them - the rest serving as sources of spare parts.
May 29, 2023 • 5 tweets • 2 min read
There are reports of 5 aircraft damaged/destroyed by the Russian missile strike in the Khmelnytskyi region - based on local reports likely at Starokostyantyniv airbase.
pravda.com.ua/news/2023/05/2… IMO (based on this old Google Maps image), given the numerous HAS I would expect that 5 wrecked airframes would be retired aircraft left outside (with usable aircraft being in HAS, but a new satellite image of the airbase might be necessary to determine what was damaged/destroyed Image
May 15, 2023 • 25 tweets • 4 min read
A thread about the current state of the international commercial space launch industry

(due to sanctions and legal issues, this mostly excludes Russian and Chinese rockets) It seems that the space launch industry is both significantly expanding and in a crisis and the roots of both lead to the period 8-10 years ago, when SpaceX while still a relatively small player became a threat against which established players started to struggle
Mar 13, 2023 • 19 tweets • 3 min read
Thread: I will try to explain what makes SpaceX Starlink special in general and especially about its utility for Ukraine during the current war - plus its limitations.

I will simplify technical/operational parts and obviously skip some info that falls under Ukrainian OPSEC. Starlink and other satellite internet services are most useful in areas without functional or reliable fixed telco infrastructure - so either remote areas where building infrastructure isn't profitable, or areas affected by natural disasters or wars.
Jan 8, 2023 • 8 tweets • 2 min read
/Thread/ My opinion on the Russian campaign of attacking Ukrainian energy infrastructure: it is both very damaging to the Ukrainian economy, but also a militarily a waste of resources that a competent opponent would be able to use to complicate things for the Ukrainian military. IMO, the campaign isn't even all that effectively run - multiple critical parts of the grid have not been hit (either because Russian missiles lack required accuracy or because of bad planning),
Jan 8, 2023 • 8 tweets • 2 min read
/thread/ My opinion on Russia's varying sensitivity to military casualties (I claim no expertise on Russia and its domestic politics - this is just how I see things): The way I see it, the Russian public and government have different sensitivity to casualties - contract soldiers and volunteer losses are seen as " they knew what risks they sign up for", nobody really cares about losses among LDNR, Chechen Rosgvardia, or Wagner troops,
Aug 8, 2022 • 40 tweets • 28 min read
#UkraineWar: Overview of Russian equipment losses added on 08/08/2022

Full list: oryxspioenkop.com/2022/02/attack…Image #UkraineWar: Overview of Russian equipment losses added on 09/08/2022

Full list: oryxspioenkop.com/2022/02/attack… Image
Aug 4, 2022 • 148 tweets • 104 min read
#UkraineWar: Overview of Russian equipment losses added on 04/08/2022

Full list: oryxspioenkop.com/2022/02/attack… Image #UkraineWar: Overview of Russian equipment losses added on 05/08/2022

Full list: oryxspioenkop.com/2022/02/attack… Image
Jul 29, 2022 • 41 tweets • 28 min read
#UkraineWar: Overview of Russian equipment losses added on 29/07/2022

Full list: oryxspioenkop.com/2022/02/attack… Image #UkraineWar: Overview of Russian equipment losses added on 30/07/2022

Full list: oryxspioenkop.com/2022/02/attack… Image
Jun 8, 2022 • 19 tweets • 4 min read
/thread/ I want to use this article as an example to show how (for example) foreign policy folks often stretch their work too beyond what they know (at which point they should consult with specialists in that area).

cc @LianaFix @mkimmage - feedback is welcome "In recent days, many Western observers of the war in Ukraine have begun to worry that the tide is turning in Russia’s favor. Massive artillery fire is yielding incremental Russian gains in eastern Ukraine’s Donbas region, and Russia is bringing in new forces."
May 8, 2022 • 7 tweets • 2 min read
/thread/ An interesting @RUSI_org article about the Russian tank losses in Ukraine - but IMO some of its arguments are flawed.

rusi.org/explore-our-re… Authors make an argument that at the time when it was designed a T-72 was a good tank and a carousel autoloader was a reasonable design compromise. While that was true at that time, 50 years later that design is shit, and either its flaws should have been addressed ages ago
Apr 30, 2022 • 17 tweets • 5 min read
/thread/ Putin's options (IMO) and their respective complications considering that in early May the current Russian invasion force is likely to be too degraded to continue significant offensive operations: 1. Agree to a deal acceptable to Ukraine to end the war - it would mean acknowledging a big military defeat of the Russian military even if for the domestic public Putin's propaganda would come up with ways to pretend that it is a victory.