H I Sutton Profile picture
Feb 10, 2023 9 tweets 4 min read Read on X
***BREAKING***

Reported attack by #Russian maritime drone on Zatoka Bridge, Ukraine, Feb 10, 2023

This is significant. Thread 1 /8
#OSINT Attack by maritime drone
2 /8
Video of the bridge being attacked is being widely shared on social media. This appears credible.

What follows is a hot take, caveats apply

3 /8
Some reports say it was an "underwater drone". I think that actually it is an explosives laden uncrewed surface vessel (USV)

This is the same concept that #Ukraine used so effectively against Russia in late last year

The Ukrainian one, from hisutton.com/Ukraine-Mariti… Image
4 /8
This is a major new development, #Russia was not known to have these types of drones, or to think in these terms

Even if the attack did limited damage (as reported) it is a major new threat for Ukraine
5 /8
The bridge is a strategic link between Ukraine and Moldova/Romania and has been targeted by Russia before, but with limited success

Previously in April 2022, missile strikes: Image
6 /8

A large number of small fast boats were active around Sevastopol earlier today. Many were likely guarding Russian warships used to launch Kalibr missiles on Ukraine from Ukrainian USVs.

But some might have been these USVs. Possibly
7 /8
#Ukraine's USVs appear to use StarLink from Space X for real-time control

However Space X has taken steps to prevent Ukraine using the technology in "drones"

This is a significant blow for Ukraine's military

bbc.com/news/world-eur…
8 / 8

If Russia is able to use these explosive drones against Ukrainian coastal targets, but Ukraine can no longer attack Russian warships in the same way, we may see another shift in the war in the Black Sea. This time in Russia's favor again.
9 /8

Afterthought: one scenario to watch for is Russia using them against merchant shipping going to Ukraine under the grain deal and then denying it and blaming Ukrainian drones and/or mines

Previous suspected Russian attack on merchant ship off Ukraine, Feb 2022: Image

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More from @CovertShores

Apr 21
**BREAKING**
Thread 🧵

#Ukrainian strike on #Russian Navy base at Sevastopol in Crimea appears to have damaged, possibly seriously (TBC), the submarine support ship Kommuna (ref ) hisutton.com/Russian-Navy-K…
Kommuna, ship cutaway
Video
Kommuna gets a degree of sympathy because she is an ancient and beautiful ship, 112 years old(!).

But objectively she is a legitimate target and provides Russian navy with valuable capabilities. She often participates in submarine trials and can conduct seabed warfare Image
Read 6 tweets
Apr 18
***UPDATE***

First images of Australia’s new 3D printed extra-large autonomous underwater vehicle (XLAUV), the Ghost Shark. 🧵 Image
This is the previous graphic shared by manufacturer Andruil, when the deal for 3 vehicles was announced. See hisutton.com/Australian-Nav…
Image
The design has a square cross-section which contrasts with the rounded form of the previous artworks. This maximizes volume for its given outer dimensions

Crucially, it can still likely fit inside a standard shipping container, an advantage over larger types like the Boeing Orca used by U.S. NavyImage
Image
Read 5 tweets
Apr 13
Thread 🧵
2 years ago today, Ukraine hit the Russian Black Sea Fleet flagship Moskva with two Neptune missiles.

At the time it seemed like a spectacular event. But the real story of how Ukraine turned the situation in the Black Sea around was only beginning. #Moskvahisutton.com/Russian-Navy-M…
The missiles hit amidships, likely detonating a magazine of the AK630 anti-aircraft guns. Image
Read 5 tweets
Feb 22
***UPDATE***

Reports that Transnistria (part of Moldova) may request annexation by Russia.

May trigger action from Moldova with #Ukraine help

#Russia realistically unable to intervene, in part because Ukraine has sunk so many of its landing ships in past 2 years

Thread 🧵


Image
Image
Image
Image
From

Mar 24 2022: Russian Navy Alligator class landing ship Saratov explodes while unloading at Berdyansk on Sea of Azov. Possibly hit by a Ukrainian ballistic missile. 2 Ropucha class landing ships manage to escape. hisutton.com/Timeline-2022-…
Image
Aug 3-4: Russian Navy Ropucha Class landing ship Olenegorsky Gornyak struck by Ukrainian SBU maritime drone (USV) outside Novorossiysk. Significant damage. Towed to Novorossiysk. Subsequently repaired Image
Read 7 tweets
Feb 14
***BREAKING***

Unconfirmed: #Ukrainian GUR maritime drones (USV) (likely Magura) attacked #Russian Ropucha landing ship Caesar Kunikov in (Цезар Куніков) near Crimea.

Reportedly ship sunk. Awaiting more info.
pravda.com.ua/news/2024/02/1…
Image
Read 5 tweets
Jan 9
**HOT TAKE**

Thread 🧵

Reports that Turkey will allow some #NATO warships through the Bosporus into the Black Sea.

This raises several questions. Still digesting it but sharing some thoughts below. Caveats apply.
#RussianUkrainianWar Image
Firstly, if USNavy or Royal Navy deploy ships, I would expect only ‘defensive’ ships to be sent. Most likely coast guard and/or mine hunters. The reasons are obvious. Image
Read 12 tweets

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