Saab unveils superstealth 'ghost submarine' that is virtually invisible to enemies and even allows divers to silently enter and exit

Surely this is what Australia should be buying rather than more Australian-made rubbish.  Surely the Collins submarine fiasco is enough. It took 13 years to build 6 of them and they have NEVER worked properly.  They are good when they do work but are always breaking down.  There is often only one at sea, with the rest undergoing "maintenance". They are based on a successful Swedish model so it is the build-quality that is the problem, not the design.  "She'll be right mate" is sometimes just not good enough.

And don't mention the mega-bungles of the air warfare destroyer project.  Three were ordered in 2007 but the first is now projected to enter service only in 2017.  Australia just does not have the capacity to build leading-edge military ships

Saab has unveiled what it claims is the world's most advanced stealth submarine.  The A26 sub is 207 feet long, and features a 'ghost mode' to make it virtually undetectable when underwater.

It also features a unique pod that allows special forces divers to enter and exit the sub while it is underwater.

They have an endurance of 45 days or 18 days underwater. They have a test depth of about 658 feet.

They will be conventional diesel-electric submarines equipped with the Kockums Stirling AIP (air-independent propulsion) system for enhanced stealth.

The firm has already signed a $1 billion deal to build two of the new submarines for the Swedish Navy.

'Extreme stealth is at the heart of the Kockums A26 submarine,' the firm said.  'Sweden is unleashing its GHOST (Genuine HOlistic STealth) technology, thus making the Kockums A26 submarine effectively invisible.'

The order, with a value of about $1.04 billion, is for construction of two Type A26 submarines and conducting mid-life upgrades to two Gotland-class submarines. Work on the two A26s is to be completed by 2024.

Type A26 submarines have an endurance of 45 days or 18 days underwater.

'Sweden has long experience in designing very silent submarines,' the firm says.

'In the Kockums A26 submarine, an extremely resilient platform technique incorporating extensive rubber mountings and baffles is used to minimise noise from operating machines and transient noise, as well as absorbing shocks.

To further reduce emitted noise, the space between the frames is equipped with acoustic damping plates... Hull shape and fins designed to make it appear almost invisible

'Intelligence gathering, surveillance and sea denial along coastlines are becoming increasingly important, ' Saab said.

'Operations in shallow water enable submarines to carry out covert monitoring of targets on land or sea using a range of electro-optical and electromagnetic sensors.

'Moreover, the ability of a submarine to lie motionless on the ocean floor, or 'bottom out', makes it almost impossible to find.'

This highly optimised design also cuts the hydrodynamic signatures and flow noise around the submarine, both in deep water and near the surface.

The magnetic signature is suppressed by an advanced degaussing system that is controlled by external sensors to facilitate compensation in all geographical locations and headings.

Galvanic signatures, primarily electrical but including secondary magnetic signatures are reduced by a specially designed cathodic protection system and careful material selection that minimise electrical signatures without compromising the corrosion protection of the submarine.

The two vessels will be delivered to Sweden's Defense Materiel Organization in late 2018 and late 2019, respectively.

'Saab will deliver world-class submarines to Sweden,' said Hakan Buskhe, president and chief executive officer of Saab. 'Our ability to work closely with customers, to meet their needs with modern manufacturing and products, is one of Saab's greatest skills.

'Saab is also exploring export opportunities to provide complete submarine systems to a select number of countries, plus sub-systems across the wider market.'


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