Penguin
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Another incorrect post. The 216/218 is of far more recent date than 214. I've already adressed the realtionship between 212a and 214, but you choose to ignore that, as well as the FACT that 212A is in Italian service and will be in Polish service, which - for a GERMAN submarine - in my book constitutes EXPORT. You are furthermore repeating items I have already put forward (non mangnetic steel e.g.) as if this somehow gives a new angle on the discussion in your favor..So bla on you. You are NOT a serious poster.You should read about why the 212-A was not exported, I give you a hint, germany does not want to diclose its hydrogene AIP technology and much more (The Type 214 is a diesel-electric submarine developed by Howaldtswerke-Deutsche Werft GmbH (HDW). It features diesel propulsion with an air-independent propulsion (AIP) system using Siemens polymer electrolyte membrane (PEM) hydrogen fuel cells. The Type 214 submarine is derived from the Type 212,[2] but as an export variant it lacks some of the classified technologies of its smaller predecessor most important of which is the non magnetic steel hull which makes the Type 212 submarine impossible to detect using a Magnetic Anomaly Detector.), that is why it has developped the 214 and 216 with different fuel cells technologies to respond to the market demands.Italy developped its 212-A alongside Germany it is a well known fact not to be mentionned everytime, the italian 212_A was adapted to the mediterannien waters.
For the Fateh submarine you should wait and see or hear, it is technologically in par with anything out there in its category, where you find none.Technology-wise, there is no reason not to believe the Iranians, one has only to check their scientific ranking in the world. if that is not enough , it is just talk for talk, since I repeated many times that iran is not disclosing its specs, it is like trying to compare with a ghost (that might be it), so it will be only speculation at best, which will give no tangible results or answers.
The U212's diesel propulsion system is combined with an air-independent propulsion (AIP) system, used for silent slow cruising.
BOTH from U212 / U214 Submarines - Naval TechnologyThe Class 214 submarine will have an increased diving depth and an improvement in AIP performance.
Type 214The latest additions to the German shipbuilder HDW's highly successful Type 209 family of submarines, the Type 212 (ordered by Germany and Italy), the Type 214 (ordered by Greece), and the Type 800, are all fuel cell powered. A submarine that uses fuel cells rather than a diesel engine to recharge its batteries produces much less sound while doing so, and consequently the effective detection range of many of the current passive acoustic sonobuoys is reduced.
Type 214 SubmarineType 214 submarines were developed in Germany to address the requirements form modern navies for more endurance, without using nuclear propulsion. Unlike classic diesel electrically powered subs, Type 214s are using a new fuel cell system providing an Air Independent Propulsion (AIP). The new propulsion system enables an increased diving depth and overall performance efficiency, through specially built hull and advanced weapons systems. Absence of a diesel engine also provides for minimizing acoustic, thermal and magnetic signatures.
Greece to accept Type 214 submarines into service - IHS Jane's 360The submarines involved are the Greek-built Type 214 boats HS Pipinos (121), HSMatrozos (122) and HS Katsonis (123), all launched by mid-2009, and the Type 209/1200 boat HS Okeanos (118). The latter was the only vessel of its class to be modernised under the Neptune II programme and fitted with an air-independent propulsion (AIP) plant, similar to those of the Type 214.
http://www.bmtdsl.co.uk/media/50456...r-and-Propulsion-Conpaper-Pacific08-Jan08.pdfThe German HDW Type 214 export-design is a good example of the current state-of-the-art of SSK design in terms of P&PS. The design has evolved from the excellent Type 212A to become an export variant of notable success.
The use of two Siemens BZM 120 (120kW) Polymer Electrolyte Membrane (PEM) fuel cells units with onboard stores of oxygen and hydrogen gas has allowed a considerable performance to be achieved.
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Figure 2 also shows that the future AIP-based Type 214 will be able to stay immersed for over 1 month. This compares with the Type 212A record of 2 weeks submerged without snorting with fuel-cells between Germany and Spain in April 2006 [Ref. 3].
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The use of PEM Fuel Cells in SSK has been championed by the German firm of HDW [Ref. 9] in their Type 212A and Type 214 designs[Ref . 10].
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The use of PEM Fuel Cells in SSK has been championed by the German firm of HDW [Ref. 9] in their Type 212A and Type 214 designs[Ref . 10]. In the Type 214A designs as used by Greece, the two Siemens BZM120 fuel cells are rated at 120kW each and weigh 900kg with a volume of 500 litres each.
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The technology of batteries is undergoing a sea-change with the emergence of the Zebra product from Rolls-Royce and the development of lithium ion designs [Ref. 17]. This comes on top of the use of sodium sulphide batteries in the HDW Type 212A class.
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In energy density and specific weight terms it promises to be better than the sodium sulphur batteries as used in the German 212A class.
Germans chose NOT to order the original 212 design but rather ordered the 212A design, which not only took German requirements but also Italian requirements into account. NO 212 WAS EVER PRODUCED.
Both 214 and 212A use PEM fuels cells but 214 has a smaller battery set.
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