Iranian Islamic Revolutionary Guards (IRGC) XLUUV 
Iran has revealed its first large Uncrewed Underwater Vehicle (UUV). Once developed this will add a new dimension to Iran’s systematic warfare capability. It will also mean that Iran joins an elite club with only the U.S. Navy and Britain’s Royal Navy having such large UUVs...
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All articles
Articles_for_Forbes_2020-07-10
Recent Articles for Forbes
Underwater warfare and similar OSINT / defence analysis topics to a wider audience...
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Unidentified-Wave-Glider-off-USA-Coast
Unidentified Wave Glider seen off U.S. Coast 
A photo has been shared on Instagram asking 'what is this?' Well, it is a version of the Wave Glider with a previously unseen aerial attached...
Update: Since posting, the antenna has been identified as the SeaWatch system from Thayer Mahan.
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Russian-Navy-In-Tartus-Syria
Russian Navy deployed Marine Mammals to Defend Base in Syria 
The Russian Navy deployed marine mammals to Tartus in Syria during September-December 2018. The animals, most likely seals, were positioned next to the harbor defense units.. Read More >....
U212-AIP-Submarine
Update: Originally posted Apr 25 2020
Stealth & sophistication: Type-212 submarine 
The Type-212 class has a reputation for sophistication, largely thanks to its first-use of Fuel Cell AIP (Air Independent Power). It is considered the elite model in the German submarine design list, above the later Type-214 and Type-218 products. The design is interesting in a number of ways. ...
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Submarine-Tunnels
Covert Shores World Guide to
Naval Tunnels to Hide & Protect Submarines
There are a surprising number of tunnels built to protect submarines (and/or warships) from surprise attack. Today the main users are China, North Korea and,... Sweden. But there are many other examples around the world, sometimes disused, sometimes so secret that they remain unconfirmed... 
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German-WW1-Type-UC-1-U-Boat
Forgotten Super-Weapon of WW1: Type UC-1 Uboat Mine laying submarines are largely forgotten in spite of being one of the most successful weapons of the war. This article will focus on the first German type, the UC-1 Class. It was an elegant, innovative and effective design.... 
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Chinese-Navy-CV-003-Aircraft-Carrier-progress
IMINT shows progress on Chinese CV-003 carrier Image analysis of China's 3rd aircraft carrier should steady preparations towards launch...
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Italy-COMSUBIN-SDVs
COMSUBIN reveal underwater vehicles Finally, COMSUBIN has shared high quality imagery of some of their historic underwater vehicles...
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Nordenfelt-submarines
Upated Covert Shores Guide to
Nordenfelt steam submarines (1880s) 
The Nordenfelt submarines of the 1880s are an underappreciated part of submarine history. They were midway between the human powered submarines of the American Civil War and the gasoline and diesel boats of the 1900s. Much of their technology was ground (sea) breaking...
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