a New Stealth Submarine?

[Arsalan]

Well chinese have come a long way
But still German and Swedish are better at stealth
Frankly , U212 was declared as the stealthiest sub in the world
And Germany operates 12 of them while South Korea has 10 of them

no doubt the U214 is amongst the best conventional submarine but now with the deal almost off table, why not look ahead for other options!!

regards!

 

[SBD-3]

Well chinese have come a long way
But still German and Swedish are better at stealth
Frankly , U212 was declared as the stealthiest sub in the world
And Germany operates 12 of them while South Korea has 10 of them

South Korea and U-212???....Thanks God you didn't say IN anyways on the serious note U-212 is only operated by German and Italian navies U-214 is an export variant with with the removal of a magnetic hull and classified technologies. And lastly Chinese have shown considerable progress in design and development of Subs recently, almost every year we hear about a new development on this front. So it may not be an impossible task for China to pull something close to U-212 as their designs mature in the current decade

 

[Super Falcon]

may be pakistan eyeing this submarine to come in its arsenal of navy cheap and reliable spaecially against indian agression

 

[SBD-3]

may be pakistan eyeing this submarine to come in its arsenal of navy cheap and reliable spaecially against indian agression

well Its still not clear whether is it a SSN or SSK. Cuz PN is currently looking for SSKs as diesel electric subs are usually quieter than SSNs and thus more difficult to detect my bet remains on Yuan Class subs

 

[prototype]

What is actually a stealth sub

some people r really confused with it as they may think of some stealth fighter or stealth frigate tech

Any sub does not make noise,does not need to surface often is stealth in nature

This is for the reason nuclear submarines and AIP r much in demand

 

[SBD-3]

First one is the Chinese Type 094 Jin class SSBN sub, while the white markings are most probably representing the deck hatches of the sub.

I think second one is more likely Kilo Class SSK (as it is much smaller in size than the 1st one) IN also operates this class and I ve seen this pic there

 

[SBD-3]

What is actually a stealth sub

some people r really confused with it as they may think of some stealth fighter or stealth frigate tech

Any sub does not make noise,does not need to surface often is stealth in nature

This is for the reason nuclear submarines and AIP r much in demand

well I agree with the 1st part but AIP cant help operate SSK indefinitely, so sooner or later Sub have to surface but the point is uptil how long an AIP can delay such an action Siemens Fuel Cell AIP used in U-212 can help it remain submerge for 3 months!! (enough time to go bust and come back to safety) I cant say anything about the endurance of Chinese AIP may be some Chinese brother can help us here

 

[Penguin]

South Korea and U-212???....Thanks God you didn't say IN anyways on the serious note U-212 is only operated by German and Italian navies U-214 is an export variant with with the removal of a magnetic hull and classified technologies. And lastly Chinese have shown considerable progress in design and development of Subs recently, almost every year we hear about a new development on this front. So it may not be an impossible task for China to pull something close to U-212 as their designs mature in the current decade

I'm not so sure the 214 is an export version of the 212A (note: 212 was a aborted project), but rather a parallel design which shares common features with the 212A.

The 214 design is influenced by 212A, 209/1400 as well as T800 Dolphin (Israel) and TR1700 (Argentina). The U-209PN ordered by the Portuguese Navy is actually a Type 214, which should tell you something.

The 212A was designed with Baltic Sea area ops in mind and this is a very shallow water area, which places key importance to signature reduction. Hence the amagnetic hull (not a magnetic hull!) on the 212A. The needs of other nations may not be such as to warrent an expensive amagnetic steel hull, which is also more expensive to construct than a regular steel hull. Hence the export oriented design 214 doesn't feature this. But it has greater diving depth for example than 212A. So, there's is a trade-off. However, 214 certainly isn't a 212A watered down for export. They are 2 distinct designs (as is evident below: note differences in diving plane arrangement, tail arrangement, torpedotube arrangement, mast arrangement etc)

212A (sail mounted diving planes, X-form tail, 4 wide x 2 high tubes, masts linear in sail)

214 (front hull diving planes, +-form tail, 2 wide x 4 high tubes, masts staggered in sail)

http://www.globalsecurity.org/military/world/europe/hdw-unit.htm

 

[Penguin]

What is actually a stealth sub

some people r really confused with it as they may think of some stealth fighter or stealth frigate tech

Any sub does not make noise,does not need to surface often is stealth in nature

This is for the reason nuclear submarines and AIP r much in demand

Indeed. Though the submarine (any submarine) has qualified as one of the stealthiest naval vessel in operation for decades, there is no such things as a stealth submarine.

 

[Penguin]

well I agree with the 1st part but AIP cant help operate SSK indefinitely, so sooner or later Sub have to surface but the point is uptil how long an AIP can delay such an action Siemens Fuel Cell AIP used in U-212 can help it remain submerge for 3 months!! (enough time to go bust and come back to safety) I cant say anything about the endurance of Chinese AIP may be some Chinese brother can help us here

Most subs since ww2 don't have to surface but do have to snort/schnorkel to run on diesel while just submerged to recharge batteries. AIP eliminates the need for this for about 3 weeks.

212A Endurance is 8,000 nm (14,800 km, or 9,196 miles) at 8 knots (15 km/h) surfaced, 3 weeks without snorkeling (due to AIP), 12 weeks (84 days) overall mission duration.

214 endurance is 12,000 miles (19,300 km) surfaced, submerged
420 nmi (780 km) @ 8 kt and 1,248 nmi (2,311 km) @ 4 kt
Total mission endurance: 84 days

 

[Chanakyaa]

All the Subs in general are stealthy...

But in general diesel subs are quiet hence more stealthy than nuclear subs.

the German 212 is considered to be most stealthy sub .. As of now ...

 

[Donatello]

All the Subs in general are stealthy...

But in general diesel subs are quiet hence more stealthy than nuclear subs.

the German 212 is considered to be most stealthy sub .. As of now ...

Sorry, but that seems a bit counter-intuitive...

How can a diesel engine be quieter than a nuclear reactor?

 

[Penguin]

All the Subs in general are stealthy...

But in general diesel subs are quiet hence more stealthy than nuclear subs.

the German 212 is considered to be most stealthy sub .. As of now ...

The official designation is Type 212A. Type 212 never got built.

At the beginning of the 1990s the German Navy was seeking a replacement for the Type 206 submarines. Initial study started on a Type 209 improved design, with AIP capability, called Type 212. The final programme started in 1994 as the two navies of Germany and Italy began working together to design a new conventional submarine, respectively to operate in the low and narrow waters of the Baltic sea and in the deeper waters of the Mediterranean sea. The two different requirements were mixed into a common one and, because of significant updates to the design, the designation was changed to Type 212A since then.

http://en.wikipedia.org/wiki/Type_212_submarine

 

[Penguin]

Sorry, but that seems a bit counter-intuitive...

How can a diesel engine be quieter than a nuclear reactor?

Belows the surface, subs run not on diesel but on electric motors. In a nuclear sub, there are no diesel, just electric motors. However, in order to regulate a nuclear power plant, you need to cool it constantly, which means the SSN has pumps on constantly pumping coolant for the nuclear plant, which are a source of noise that an SSK on batteries or AIP doesn't have to contend with.

 

[Lefa]

Sorry, but that seems a bit counter-intuitive...

How can a diesel engine be quieter than a nuclear reactor?

Basically, an electric motor have less parts in motion than a nuclear reactor, thats why they are more silent.
In order to operate a reactor (steam principle) in fact, you need a cooling system that will moove the water exchanging heat; this is accomplished with the pump's help, that generate a higher acustic signature in comparison to a project that doesnt need a cooling system.

Right now there are 3 different 212 projects:

212A (first batch, operated by ITA and GER)
212A (second batch under construction, operated by ITA and GER, also known as 212B)
212S exposrt version exclusive for ISR

If you want details about 212 project, just ask!
And yes, til now its the more silent sub in the world (far from 214)

I forget: 214 is 209's evolution (export sub), 212 its a totally different project that comes from 211 project (israeli "Dolphin").