🔺OOA activity - Update Russian Navy Baltic Fleet Pr.20380 class SKR-545 “Stoikiy” & support tanker “Yelnya” completed a westbound transit of the English Channel, 7 November 2025. ⚠️Units heading for regional engagement tasking around Africa.

🔺OOA activity - Breaking Russian Navy Baltic Fleet Pr.20380 class SKR-545 “Stoikiy” & support tanker “Yelnya” VISID departed the Baltic Sea, 3 November 2025. ⚠️Units likely heading for regional engagement tasking in the African region Autumn/Winter 2025.

🔺Baltic Sea submarine activity A UI Russian Navy Kilo class conventional diesel-electric submarine, likely Black Sea Fleet T636.3 B-261 “Novorossiysk”, returned to the St. Petersburg area, 31 October 2025.

🔺Baltic Naval reinforcement activity The Russian Navy likely transferred a Pr.22800 Karakurt class missile corvette to the Baltic Sea, mid-October 2025. Unit may be Black Sea Fleet MRK-646 “Amur” Superstructure de-rig/re-rig, for inland waterway transit, visible.

Poseidon test related: The special purpose submarine Belgorod, Poseidon trials support ship Akademik Aleksandrov and the auxiliary Zvezdochka was highly likely missing from their usual piers in Severodvinsk by the 23rd and high likely still missing on the 28th.

1/5 Kara Sea Activity Caveat: Preliminary findings. On October 28th, when the Poseidon test was conducted according to Putin, there were 6 unidentified ships off the eastern coast of Novaya Zemlya, Kara Sea. No NOTAM, no PRIP, but well off the path for any civilian traffic.

🔺OOA activty - Heads up! Russian Navy Baltic Fleet tanker “Yelnya” is a strong candidate to conduct an autumn OOA deployment. ⚠️Unit will likely deploy to the Mediterranean Sea as relief for Northern Fleet tanker “Kama” & may get underway next 1-14 days.

🔺OOA activity- Update Russian Navy Northern Fleet Pr.1155 Udaloy class BPK-626 “Vice Admiral Kulakov” & Baltic Fleet Pr.864 Vishnya class “Vasily Tatishchev” VISID returned to the Baltic Sea, 28 October 2025. ⚠️Units preceded by AXT-300 Smolny

🔺OOA activity- Update Russian Navy Baltic Fleet Pr.887 Smolny class training ship AXT-300 “Smolny” VISID returned to the Baltic Sea, 28 October 2025. ⚠️Unit retuning from a 4-month global Cadet cruise to the Far East & westbound transit of the NSR.

🔺OOA activity - Breaking Russian Navy Baltic Fleet Pr.864 Vishnya class surveillance vessel “Vasily Tatishchev” VISID departed the Baltic Sea, 24 October 2025. H/t shipohollic

🔺OOA activity - Update Russian Navy Baltic Fleet Pr.887 Smolny class training ship AXT-300 “Smolny” likely departed Severomorsk, 23 October 2025, after a Cadet swap PVST. ⚠️Unit likely returning to the Baltic Sea but may observe Northern Fleet exercise activity next 1-5 days.

🔺OOA activity - Breaking! Russian Navy Baltic Fleet Pr.775/II class Ropucha class amphibious vessel BDK-110 "Alexandr Shabalin" VISID departed the Baltic Sea, 23 October 2025.

🔺Northern Fleet / Strategic Rocket Forces activity 🚀 There is an increased likelihood of a Strategic weapons firing event in the Arctic region, 23 October 2025. ⚠️Activity likely associated with Russian Strategic Forces Exercise Grom 2025. @thelookout.bsky.social @thomasnilsen.bsky.social

🔺OOA activity - Update Russian COI Sparta IV, likely ICW Northern Fleet Pr.1155 class BPK-626 “Vice Admiral Kulakov”, completed an eastbound transit of the English Channel & entered the North Sea, 23 October 2025. ⚠️Both units retuning to the Baltic Sea.

🔺OOA activity - Update Russian Navy Northern Fleet Pr.1155 class BPK-626 “Vice Admiral Kulakov” VISID westbound in the English Channel, 22 October 2025. ⚠️Unit likely RV'd with COI MV Sparta IV & commenced eastbound escort through the English Channel to the Baltic Sea.

🔺Northern Fleet - Update 🚀 Russian Navy Pr.667BDRM Delta-IV class SSBN K-117 "Bryansk" conducted a SS-N-23 Sineva SLBM launch from the Barents Sea during OSNF Ex Grom, 22 October 2025. ⚠️Looks like Marjata observed launch (in the background👀) ⚠️Yars ICBM & Tu-95 ALCM firings also conducted.

🔺Northern Fleet / Strategic Rocket Forces activity 🚀 There is an increased likelihood of a Strategic weapons firing event in the Arctic region, 22 October 2025. ⚠️Activity likely associated with Russian Strategic Forces Exercise Grom 2025. @thelookout.bsky.social @thomasnilsen.bsky.social

🔺Research vessel activity - update PP Shirshov Institute of Oceanology owned RV “Akademik Ioffe rounded North Cape & entered the Barents Sea, 22 October 2025. ⚠️Unit conducting IPTX from Kaliningrad to Murmansk ahead of likely autumn Arctic area tasking.

🔺OOA activity - Update Russian COI “Sparta IV” began an eastbound transit of the English Channel, 22 October 2025. ⚠️There is a realistic possibility MV Sparta IV will be escorted by Northern Fleet Pr.1155 class BPK-626 “Vice Admiral Kulakov” during its return to Baltiysk.

🔺Northern Fleet Air activity Two Russian Navy NFAF probable Tu-142 MPA conducted separate routine MARPAT patrols in the Barents Sea area, AM 21 October 2025. ⚠️Aircraft highly likely conducting pre-exercise activity.

🔺OOA activity - Update Pacific Fleet Pr.1155M BPK-543 "Marshal Shaposhnikov", Pr.20385 SKR-337 "Gremyashchiy" and Pr.1559V class tanker "Boris Butoma" arrived in Sattahip NVB, 21 October 2025. ⚠️Units conducting regional engagement in SE Asia & will likely depart 25 October for local exercises.

🔺OOA activity - Update Russian Navy Baltic Fleet Pr.887 Smolny class training ship AXT-300 “Smolny” arrived in Severomorsk, 20 October 2025, following westbound transit of the NSR as part of a Cadet cruise. ⚠️After Cadet swap, AXT-300 will likely begin return to the Baltic Sea, next 5-7 days.

🔺OOA activity - Update Russian COI “Sparta IV” exited the Mediterranean Sea, early AM 18 October 2025. ⚠️MV Sparta IV returning to the Baltic Sea following a 5-day PVST to the Levant region.

🔺OOA activity - Update Russian Navy Baltic Fleet Pr.887 Smolny class training ship AXT-300 “Smolny” likely completed a westbound transit of the Northern Sea Route, 17 October 2025. ⚠️Unit likely entered the Kara/Barents sea area ENR PVST possibly to Severomorsk.

🔺OOA activity - Update Russian COI “Sparta IV” likely escorted by Baltic Fleet Pr.20380 class SKR-532 “Boikiy” entered the Alboran Sea, westbound, 17 October 2025. ⚠️MV Sparta IV likely returning to the Baltic Sea following a 5-day PVST to an undisclosed location in the Levant region.

🔺Research vessel activity - update PP Shirshov Institute of Oceanology owned & operated RV “Akademik Ioffe departed the Baltic Sea, 17 October 2025. ⚠️Unit IPTX from St. Petersburg to Kaliningrad, 10-12 October & likely stored before departing on 15 October for transit to the Arctic.

🔺Baltic Fleet activity Russian Navy Baltic Fleet Pr.02980 class rescue tug “Aleksandr Frolov” completed IPTX from St. Petersburg to homeport Baltiysk, 16 October 2025. Sister ship, Pr.02980 class tug “SB-123” likely to complete same IPTX, & arrive Baltiysk, next 24HRS.

🔺OOA activity - Update & final Russian Navy Baltic Fleet Pr.714 class tug "Yakov Grebelskiy" highly likely arrived in the Baltiysk roads, 16 October 2025, completing an OOA deployment to the Mediterranean Sea. ⚠️Unit likely ICW Kilo T636.3 class SSK B-261 "Novorossiysk"

🔺OOA activity - Update Russian Navy Baltic Fleet Pr.887 Smolny class training ship AXT-300 “Smolny” is likely conducting a westbound transit of the Northern Sea Route, 15 October 2025. ⚠️Unit conducting a global Cadet training cruise & likely ENR Severomorsk after PVSTs to Vladivostok & Kamchatka.

🔺OOA activity - Breaking Russian Navy Northern Fleet Pr.1155 Udaloy class BPK-626 "Vice Admiral Kulakov" VISID departed the Baltic Sea, 15 October 2025. Image courtesy of Nikolaj Jepsen/Under Broen

🔺OOA activity - image Update RFN Baltic Fleet tug "Yakov Grebelskiy" & Kilo T636.3 class SSK B-261 "Novorossiysk" VISID returned to the Baltic Sea, 14 October 2025. H/t & thanks to Mike

🔺OOA activity - Update RFN Baltic Fleet tug "Yakov Grebelskiy" & Kilo T636.3 class SSK B-261 "Novorossiysk" VISID returned to the Baltic Sea, 14 October 2025. ⚠️Units returning after OOA deployment to the Mediterranean Sea.

🔺OOA activity - Update Black Sea Fleet HQ issued a statement stating there is no malfunction on Kilo SSK B-261 “Novorossiysk”. ⚠️The unsubstantiated reports of a problem originated from a dubious OSINT source. Droxford Maritime could find no evidence of problems with B-261 & concurs with BSF HQ.

🔺GUGI vessel activity - Update GUGI owned & operated OIS “Yantar” VISID in Severomorsk, possibly around 6 October 2025 timeframe. Yantar is seen likely receiving fuel suggesting she could deploy for an OOA mission, autumn 2025. H/t @mrfrantarelli.bsky.social & A. Gurten

🔺Research vessel activity - update PP Shirshov Institute of Oceanology owned RV “Akademik Ioffe” arrived back at homeport Kaliningrad, 12 October 2025. ⚠️Unit IPTX from St. Petersburg 10-12 October & could get underway for an autumn survey task next 1-2 weeks.

🔺OOA activity-Update Russian Navy Pacific Fleet Pr.1155M BPK-543 “Marshal Shaposhnikov”, Pr.20385 SKR-337 “Gremyashchy” & Tanker “Boris Butoma” arrived in Da Nang, 12 October 2025. ⚠️Units conducting regional engagement PVST next 1-7 days.

🔺OOA activity - Update Russian COI “Sparta IV” likely escorted by Baltic Fleet Pr.20380 class SKR-532 “Boikiy” departed the Levant region, PM 10 October 2025, following a ~5-day PVST to an unknown port. ⚠️MV Sparta IV heading west, likely returning to the Baltic Sea.

🔺Northern Fleet - 🚀 Update It is likely a SLCM/SLBM firing will occur in the Barents Sea, 12 October 2025. It is unknown if the SLBM/SLCM launch is addition to SKR-456 “Admiral Golovko” possible 3M22 Zircon firing, or whether the SLCM/SLBM firing is the sole focus of the activity.

🔺Northern Fleet - Heads up! 🚀 There is a realistic possibility Russian Navy Northern Fleet Pr.22350 SKR-456 “Admiral Golovko” will conduct a certification firing of the 3M22 Zircon hypersonic missile system (over max range at a littoral target ) on 12 October 2025.

🔺OOA activity - Update Russian Navy Baltic Fleet Pr.887 Smolny class training vessel AXT-300 “Smolny” had almost certainly departed Vilyuchinsk NVB in Kamchatka, 10 October 2025. ⚠️Unit arrived on 27 September & continues Naval Cadet cruise.

🔺Russian Baltic Surveillance activity 🧵 An unidentified Russian PVO Air Surveillance unit appears to be specifically reporting the operational departure of Swedish AF Korpen surveillance aircraft 102002 & 102003 from Malmen aerodrome. ⬇️

🔺OOA activity - Update RFN Baltic Fleet tug "Yakov Grebelskiy" & Black Sea Fleet Kilo SSK B-261 "Novorossiysk", completed eastbound transit of the English Channel & entered the NSEA, 9 October 2025. ⚠️Units returning to the Baltic Sea after OOA deployment to the Mediterranean.

🔺OOA activity - Update RFN Baltic Fleet tug "Yakov Grebelskiy", ICW Kilo SSK B-261 "Novorossiysk", will highly likely enter the NSEA, via Dover Strait eastbound passage, overnight, 8 October 2025. ⚠️Units returning to the Baltic Sea after OOA deployment to the Mediterranean.

🔺Northern Fleet Air activity A Russian Navy NFAF probable Tu-142 MPA conducted a 6-hr routine MARPAT in the Barents / Norwegian Sea area, 7 October 2025.

🔺OOA activity - Update Russian Navy Baltic Fleet tug "Yakov Grebelskiy", likely in company with Kilo B-261 "Novorossiysk", commenced EASTBOUND transit of the English Channel, 7 October 2025. ⚠️Unit(s) returning to the Baltic Sea following OOA deployment to the Mediterranean.

🔺Northern Fleet Air activity A Russian Navy NFAF probable Tu-142 MPA conducted a 6-hr probable ASW patrol in the Barents Sea area, 5 October 2025.

🔺Research vessel activity - Update Russian AARI operated icebreaking RV “Akademik Tryoshnikov” returned to St. Petersburg, 5 October 2025, following a 2-month mission to the high Arctic. ⚠️Unit RAS’d (PAX/stores) & relocated AARI RV “Severny Polyus” to the east for its next environmental mission.

🔺Baltic Sea activity - Update Russian Navy Baltic Fleet Pr.775 class BDK-110 "Alexandr Shabalin" highly likely departed the Fehmarn Belt loiter area, late PM 3 October 2025. ⚠️Unit ENR an assessed RTP Baltiysk but could conduct further loiter activity along the Polish littoral / SE Bornholm area.

⚠️ Arctic activity - Heads up! There is an increased likelihood of an unspecified probable missile firing event occurring in the Arctic region, evening 2 October 2025, extending into 3 October.

🔺Digital Speech compression system Replaced analogue enciphered & compressed systems which were very insecure almost from inception. Use of proprietary 2G ALE makes this user vulnerable from a SIGINT perspective. Quite rare & a real treat to hear these days so worthy of post.