Updated. Originally posted March 29 2019
New Satellite images of Chinese Sailless submarine
A video capture posted on Chinese social media earlier today appears to show an unknown Chinese submarine design first reported in October 2018....
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All articles
Prohibition_Smugglers_Sub
Moonshine smuggling sub, 1920s, Mississippi 
During the 1920-33 prohibition era cunning individuals devised contraptions to smuggle 'moonshine' whisky from their illicit distilleries to the big cities... Read More >....
Chinese_LDUUV
Updated. Originally posted 15th Sep 2019
Chinese HSU-001 LDUUV
Large Displacement Unmanned Underwater Vehicle Photos posted on the Chinese language internet of the preparations for the 70th anniversary of the People’s Republic of China (PRC) in Beijing appear to show the first public unveiling of China’s Large Displacement Unmanned Underwater Vehicle (LDUUV)... Read More >....
Iran_Cruise-Missiles
Iranian (/Houthi) Cruise Missile types
Iran has developed several types of land attack cruise missile. This article acts as a quick reference guide... 
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Gabler_SDVs
German Gabler Swimmer Delivery Vehicles
Ulrich Gabler (1 October 1913 – 24 February 1994) was a German naval architect best known for founding the company which designed the Cold War Type-201, Type-202 and Type-209 submarines. Less well known but equally respected are his company’s swimmer delivery vehicles... 
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Articles_for_Forbes_2
More Articles for Forbes
Further articles published via Forbes taking underwater warfare and similar OSINT / defence analysis topics to a wider audience...
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Narco_2019-09
Narcosub update
Low Profile vessel (LPV) was intercepted by the USCG Cutter Valiant in the early hours of 1st September.. and more...
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HDS-400_Midget-Submarine
The lead boat of South Korea’s next generation midget submarine design, currently termed the HDS-400, was launched earlier this year... Read More >....
Ru_Garmoniya-GID_AUV
Russian Autonomous Underwater vehicle Garmoniya-GUIDE
The Project 7Р22 Garmoniya-GUIDE is an unmanned underwater vehicle project in Russia which likely fits within the Large Displacement UUV category (LDUUV).... 
Russian_Submarine_BS-64_Payload
Updated. Originally posted 29th May 2018
Russian 'Special Mission' submarine BS-64 carries payloads on back Photos continue to emerge on Russian internet sources showing Russian Navy / GUGI special mission host submarine BS-64 with payload cradle for Pr.18270 BESTER Deep Sea Rescue Vehicle (DSRV) on deck. This confirms the configuration shown on Covert Shores since 2016... 