Russian super weapon wrongly reported as Supercavitating
Poseidon Intercontinental Nuclear-armed Autonomous Torpedo
Russian state news agency TASS has recently reported that the Poseidon weapon uses supercavitation, and claimed a maximum speed in excess of 200 kmph (108 knots). This report is not credible....
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Sweden_A21_Flundran_submarine
Sweden's unique flatfish AIP attack submarine design
The A21 was a next-generation Air Independent Power (AIP) submarine concept from the end of the Cold War. Its unique shape led to the nickname ‘Flundran’ meaning flounder or flat-fish... 
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Royal_Navy_Submarine_SSN-R
Astute's successor: SSN(R)
Royal Navy planners are already looking to the next class of British attack submarines. Although there is little-to-nothing on this subject on the internet, it is a good time to start an article... 
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Surcouf
Surcouf
The French cruiser submarine Surcouf was without parallel in the World, and remained the largest and most heavily armed until the final years of World War Two... 
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Narco_2018-12
New development in Narcosub VSVs
Recording of recent narco-sub incidents....
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Turbinia
Turbinia: fastest boat in the world (1896) When it was perfected in 1896, it was literally twice as fast as anything in service with Navies. The world of naval combat was changed forever.... 
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Sarov_Submarine_update
OSINT: Russia's Sarov Class special test submarine in shed Sometimes it is what is missing rather than what is present that is interesting in a satellite image... 
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K-278_Komsomolets
MIKE Class: Russia's unique deep-diving attack submarine The Ocean’s depths below 600 meters (1,970 ft) are almost exclusively the preserve of research submersibles and underwater engineering mini-subs. Almost. The Soviet Union did commission a single nuclear-armed titanium-hulled Pr.685 attack submarine which could dive to 1,020 meters (3,350 feet), comparable to the US Navy’s famous unarmed NR-1.... 
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Nautilus-2020_Luxury_Submarine
Nautilus-2020 Private Private Submarine
What better way to blow the Monaco Yacht show out of the water than with your own private luxury submarine?
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Attack_Class_Submarine
Attack Class submarine
The Attack Class diesel-electric submarine will replace the Collins Class in service with the Australian Navy with the first boat, HMAS Attack, to be delivered in the 2030s....
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