SSN is the US Navy hull classification symbol for nuclear-powered general-purpose attack submarines. SS means "Submarine, General" according to the NATO Standard Ship Designator System with SSN referr
USS New Hampshire (SSN-778), a Virginia-class submarine
HMS Astute, an Astute-class submarine.
SSN-AUKUS
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The SSN-AUKUS, also known as the SSN-A and the Aukus-class submarine, is a planned class of nuclear-powered attack submarine intended to enter service with the United Kingdom's Royal Navy in the late
SSN (hull classification symbol)
…Virginia-class submarine – 3 planned (with an option to purchase a further two vessels) SSN-AUKUS – up to eight planned Brazilian submarine Álvaro Alberto – one under construction…
Rendering of SSN-AUKUS submarine (BAE Systems)