Anson is the fifth of the new Astute-class submarines to join the Royal Navy fleet, joining HMS Astute, Ambush, Artful and Audacious. The world's most advanced hunter-killer submarine, HMS Anson ...

HMS Astute, 7.400 tons of state of the art technology The name of the Royal Navy's newest, most capable Astute Class submarine has been formally announced Friday, HMS Anson.