Thus far, the U.K. has built and commissioned five Astute-class vessels. These are the HMS Astute (S119), HMS Ambush (S120), HMS Artful (S121), HMS Audacious (S122), and the HMS Anson (S123).

Anson is the fifth of the new Astute-class submarines to join the Royal Navy fleet, joining HMS Astute, Ambush, Artful and Audacious. The boat’s first Commanding Officer, Commander David Crosby ...

but will now follow HMS Agamemnon's lead, being named after a warrior from the Iliad. The UK Royal Navy (RN) has changed the name of the final Astute class nuclear-powered submarines to HMS Achilles.

The 7,400-tonne, 97 meter-long HMS Anson is the Navy's fifth Astute-class submarine - four of the seven other vessels are already in service. Commanding Officer of Anson, Commander David 'Bing ...