The submarine launched helicopter from 1930s
When the French submarine Surcouf entered service in 1934 it was the first in the world with an aircraft capability designed-in. It’s compact MB.411 floatplane, which folded to fit inside the integral hangar, was a work of art. But French aviation designer René Dorand had an even more ingenious solution to deploying aircraft from submarines...
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US_Navy_North_Korean_Submarine
WSTTT: US Navy's North Korean midget submarine
In May 2004 the US Navy 'sunk' a North Korean Sang-O Class midget submarine as an underwater target off San Clemente Island, California. In fact it was the purpose-built WSTTT (Weapon Set-To-hit Threat Target)...
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Kairyu_Midget_Submarine
Imperial Japanese Navy 'Kairyu' Class midget submarine
In the final months of World War Two, the Imperial Japanese Navy prepared a vast fleet of midget submarines to defend the home islands. Many of these designs crude and reflected the desperation of the times, but one design stands out...
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World_Submarines_Quiz
Test your submarine identificant skills.
Venezuelan_Navy_Submarines
Venezuelan Navy Submarine Capabilities
The most potent vessels in the Venezuelan Navy are two German-built Type-209/1300 diesel-electric attack submarines..
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Poseidon_demystified
Poseidon Intercontinental Nuclear Autonomous Torpedo demystified
Poseidon represents a completely new category of underwater weapons that will significantly alter the mission priorities of the US and British nuclear submarine forces. Although there are snippets of reliable source material on the weapon, it has an air of super-weapon mystery similar to Soviet weapon developments of the Cold War. This article seeks to step back from the mess and provide a reasoned understanding of what Poseidon is and is not...
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Malachite_arctic_submarine
Russian ice-breaking submarine design In 2017 famous Russian submarine design bureau, Malachite, patented a special purpose submarine design for underwater technical works. In particular, the submarine is intended for the maintenance and repair of underwater mining complexes on the Arctic shelf.... 
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Russia_to+build_more_deep-sea_submersibles
News: Russia building six more deep-sea submersibles Russian news agency TASS reported on 9th January that the Russian Navy is planning to purchase six transparent bathyscaphes to perform special underwater operations. TASS cited an unnamed source in the Russian military-industrial complex so reliability is unconfirmed. The report is not far-fetched however. ... 
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Poseidon_Torpedo_Supercavitation
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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