Inside the Royal Navy's new £1 billion super sub: Deadly Hunter Killer submarine is capable of hearing a ship leaving port in New York... while underwater in the English channel
• One of the world's most sophisticated and powerful nuclear submarines
• Carries dozens of cruise missiles capable of hitting targets 1,200 miles away
• Her sonar can detect vessels moving on the other side of the ocean
• Powerful nuclear reactor allows her to cruise non-stop for 25 years
• HMS Ambush is so hi-tech the giant submarine doesn't even need a periscope
She cost around £1 billion to build, has sonar so sensitive it can hear other vessels 3,000 miles away and carries a giant payload of 38 deadly Tomahawk cruise missiles.
HMS Ambush, the Royal Navy's newest nuclear attack submarine, is one of the most sophisticated and powerful vessels of her type ever built.
The giant Astute-class sub, which was launched recently, is so hi-tech she doesn't even need a periscope.
HMS Ambush, which was built by BAE Systems, is believed to be the world's most powerful nuclear
attack submarine. Her huge weapons payload includes super-accurate Tomahawk cruise missiles and Spearfish torpedoes for fighting other vessels
The super hi-tech vessel has undergone rigorous testing. Despite her size the sub's 103 crew will be tightly packed, with some sleeping up to eight to a room in bunk beds
A periscope is not used, her crew instead using a digital camera system to see above the surface when she is submerged.
Built by BAE Systems, she has enough nuclear fuel to carry on cruising for up to 25 years non-stop - giving her huge tactical flexibility.
Her nuclear reactor is so powerful her range is only really limited by the need for maintenance and resupply.
Astute-class submarines are the largest, most advanced and most powerful in the history of the Navy, boasting world-class design, weaponry and versatility.
HMS Ambush can travel over 500 miles in a day, allowing them to be deployed anywhere in the world within two weeks.
The vessel is also one of the quietest sea-going vessels built, capable of sneaking along an enemy coastline to drop off special forces or tracking a boat for weeks.
HMS Ambush was fitted out with her sophisticated technology at Devonshire dock hall in Barrow-in-Furness Cumbria . She contains some of the most hi-tech weapons and sonar systems ever created
Foreign forces will find it almost impossible to sneak up undetected by her incredibly powerful sonar equipment that can hear halfway around the world.
Her Tomahawk missiles are capable of hitting targets up to 1,200 miles away - making her a vital weapon for Britain 's armed forces.
The sub's commander Peter Green, 47, said the vessel's capabilities are 'unparalleled.' 'This sub is a huge step forward in underwater operations,' he told the Daily Mirror. 'Her listening ability is quite awesome. She has a sonar system with th e processing power of 2,000 laptop computers
Another Astute Class sub is currently undergoing sea trials - and could be operational within a year.
Many details of HMS Ambush's weapons systems cannot be revealed for security reasons.