Updated. Originally posted Oct 10 2016 and Feb 27 2020.
Delfin Class: The Cuban Navy's Only Submarine 
Cuba maintains a shroud of secrecy around its sole active submarine. However OSINT continues to emerge and I now feel that we know enough to create a cutaway. Caveats apply...
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Object-found-on-Indonesian-beach
Another Suspected-Chinese device found in Indonesia
The tales of "missile like" objects washing up in Indonesia continue. Just a couple of weeks after the forth Chinese-made Sea Wing underwater glider turned up in Indonesian territorial waters, another China-linked device has turned up on a beach in the country.
This object isn't a Sea Wing however...
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OSINT-Iranian-IRGC-Fake-Carrier-Breaking-Apart
OSINT Curiosity: Wreck Of Iran's Fake Aircraft Carrier Is Breaking Apart
The IRGC's (Islamic Revolutionary Guard Corps) fake aircraft carrier, built as a target for war games, is now breaking apart...
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Chinese-Seismic-Surbey-Ship-HYSY760
Chinese Seismic Survey Ship Off North America - OSINT
The HAI YANG SHI YOU 760 is a seismic survey ship operated by the China Oilfield Services Limited (COSL).
In 2019 she spent several months surveying the North Atlantic off Newfoundland, Canada...
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North-Korean-Navy-SLBM-Pukguksong-5
New North Korean Submarine-Launched Ballistic Missile
North Korea paraded yet another iteration of its Pukguksong (Polaris / Pole Star: 북극성) family of Submarine-Launched Ballistic Missiles (SLBMs).
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North-Korean-Navy-Nuclear-Submarine
Hermit Kingdom Plans Nuclear Powered Submarine
Kim Jong Un has said that plans for an indigenous nuclear-powered submarine are almost complete. It is a bold ambition for a country whose submarines are decades behind cutting edge.
But it should be taken seriously...
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Chinese-Sea-Wing-Submarine-Drone
Updated. Originally posted 2020-12-30
Chinese Sea Wing (Haiyi) ocean glider
A UUV found by Indonesian fishermen on December 20 was a Chinese made Sea Wing glider...
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Hankuk-Chemi-Seized-Tanker-In-Iran
Location of Tanker seized by IRGC In Strait Of Hormuz
A satellite overpass today has made it possible to provisionally identify the anchor location of the tanker seized by Iran on January 4.
The South Korean Hankuk Chemi (IMO: 9232369) was boarded by the IRGC (Islamic Revolutionary Guards Corp) by small boat and helicopter...
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First-Narco-Submarine-of-2021
First 'Narco Submarine' Incident of 2021 
The Mexican Navy has made the first reported Narco submarine interdiction of the year.
Last year saw over 20 of the so-called "narco submarines". This incident shows that they aren't going away...
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Iranian-Navy-Surface-Effect-Ship-Saba
Mystery Surface-Effect-Ship (SES) In Iran Identified
A surface-effect-ship (SES) seen in overhead imagery of Shahid Darvish yard near Bandar Abbas (reported first in Naval News) has been provisionally identified. Its size, form, timing and location match a new minesweeper (or possibly a minehunter) project for the Iranian Navy. ...
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