HMS Audacious - britains new MEGA submarine

The Royal Navy has released their most massive nuclear submarine to their fleet, the HMS Audacious.
1 billion pounds - ouch
This is like no other submarine i've seen - it's got vents under it and a strange looking forward area with the fins instead of on the conning tower like american subs.

Pretty neat looking sub- it's super huge which is neat i'd love to see the layout of something like this. how many decks does it have, at least 3 right.

Astute-class submarines

The 318 foot-long sub is equipped with Tomahawk missiles capable of hitting precise targets at a distance of 750 miles away.

The Audacious has no need for periscopes because its fiber optic sensors can detect ships in New York City all the way from the United Kingdom 3,000 miles away. It is able to circle the globe without surfacing and can operate for up to 25 years thanks to the power from its nuclear reactor.