Battleships are large armored surface combatants armed with a battery of heavy guns. In their heyday battleships were the most powerful vessels in the world and vital for naval dominance and power projection. The last were built in WW2 when they were already being eclipsed by the aircraft carrier, and few remained in service after the war. Twenty two years after the last true battleships were retired in 1992, the USS Zumwalt (DDG-1000) restarts history. 
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SDVs - terms of reference
The term SDV (Swimmer Delivery Vehicle) was coined by the US Navy in the mid-1960s and quickly spread to certain allied forces such as the British SBS. But what does it mean, and how do you describe different features of SDVs? What's the difference between an SDV and a minisub? And when is an SDV actually a DPD, or DSV???
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Cutaway-of-1912-Submarine-Patent
Impressive Submarine Patent of 1913
When Edward Lasius Peacock patented a "Submarine Or Submersible Torpedo Boat" he was sharing one of the most impressive, and ambitious, submarine designs of the period...
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Questions about the Russian Navy Zircon Hypersonic Missile
Russia's Much Vaunted Zircon Hypersonic Missile Launch: Not All It Seems?
In the race to field hypersonics, Russia is forging ahead by rolling out the 3M22 Zircon missile to its Navy.
But there is a catch...
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Barnes_Wallis_Heyday_Rocket_Torpedo
British 'Heyday' rocket torpedo
British scientist, engineer and inventor Sir Barnes Neville Wallis CBE is best remembered for inventing the bouncing bomb which was used by the Royal Air Force in the Dambusters raid (Operation Chastise). He worked on a wide range of projects however, including hydrodynamics. This article is about his rocket torpedo... Read More >....
Lockheed Dry Combat Submersible
Out of date.Read More >....
Chinese_Swimmer_Delivery_Vehicle
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leonardo_da_vinci_Submarine
Leonardo da Vinci's submarine designs
.... Read More >....