The world's most advanced AIP submarine

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Center of international military situation reported on November 14, el Salvador of Italian naval S-527\" holds submarine of benefit \" date in the palm is the U212 form that Germany develops submarine big country submarine of groovy motivation of double housing AIP, also be the most advanced AIP convention on eye preexistence bound dynamical submarine.

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From last centuries since 60 time end, germany was 14 countries navy to build submarine of many 50 209 class with different configuration form, this is the record of highest sales volume of groovy motivation submarine. Same, in AIP research domain it also is in lead position, after Sweden, it rolled out its AIP submarine: 212 class and 214 class.

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German HDW dockyard installed fuel cell system Yu Qian 1984 inside section of a light boat, had full-scale onshore test. The experiment shows this system is usable, and moving on the safe side. 1987, add system of this kind of AIP again install submarine of date of 205 class U1, what having 6 months successfully is shakedown. Pass shakedown the applicability that confirmed this system. 1990, german navy begins to brew with 209 class 1200 model submarine is a mother model, add charge batteries system, and function of transhipment of through cargo more the sonar of actor, periscope and weapon system, develop the submarine of system of AIP of the first equipment, completed a design 1992, this is 212 class groovy submarine. \"212A\" class submarine is German navy faces 21 centuries first basically fight submarine, this class a light boat can atttack surface naval ships already, can undertake turning over going mixing again offensive lay mines, it is one course design novel, function can be admirable, longer the new-style and groovy submarine that has battle activity in underwater.

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Design program is passed at winning German parliament in November 1991, financial year allocated funds 1994 build submarine of first 4 212 class. The total contractor of first a light boat is ARGEU212 group company. This group includes Huowaci - company of dockyard of heart volition dockyard, the North sea of dark of the base of a fruit and cost Luo Te. A lot of countries are caused to take seriously after 212 degree program comes on stage, italian navy puts forward to order a requirement. For the requirement of Italy of give attention to two or morethings, undertook modification to the design, those who form is final executive plan is by denominate 212A class. Because modify a design, 4 submarine that German navy orders build time to be delayed to pusher. Head a light boat predicts to delivered the goods 2003. German navy plan deploys 10~14 for \"2005 fleet \" this class a light boat; Except first 4 already are ordered outside, 2 batches are divided to order 8 even after 2000. Italian navy plans to create 4 212A class, first two had been ordered, build by homeland.

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The principal dimensions of 212A class submarine is: Grow 55.9m, 6m of wide 7m, draft; 1450t of the displacement on water, underwater displacement 1830t; 12h of surface speek of a ship or plane, underwater is the biggest 20kn of speek of a ship or plane, when AIP is advanced, 8kn of speed of the biggest submerge; Endurance is 1250nmile; Submergence deepness 200m; Control oneself force 49 days; A light boat member work out 27 people.

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A light boat of 212A class submarine it is line of look of water of first-rate of length breadth ratio model. First sink downward slightly, make passive sonar base blast have favorable working environment. The rear shows pointed taper. Body of a light boat is mid the place before slanting has one small-sized podium to surround housing, surround housing to have good clipper-built, its jacket has hydroplane. End operates the face is X model.

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German convention submarine uses type of odd housing construction for a long time by the tradition. But 212A class submarine turns over convention, used double housing construction. The cylinder that by around two diameters differ forms compression body. Use between cylinder add thick board the compression cone connection that makes, two end all use compression housing from beginning to end mould pressing is globose seal a head. Before Duan Zhi way is older, its bottom and blame compression housing close 2 for one, double deck bed board is established inside housing; Hind Duan Zhi diameter is lesser, establish a bed board only. Compression housing is made with stainless steel of high strenth low magnetism, high strenth compression was not set inside housing next door.

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The dynamical plant of 212A class submarine is by system of fuel cell power and bavin - electrodynamic the mixture power system that the system forms. System of fuel cell power is mixed by ark of keep in storage of liquid oxygen of cell of fuel of polymer of 9 groups of solid state, 14t the 3 parts composition such as ark of keep in storage of 1.7t gaseous hydrogen. Itself of fuel battery unit by electron of cell of pump of heat exchanger, eduction, cooling water pump, activator canister, fuel wave of equipment, switch board, behead implement, the equipment composition such as inverter, cooling water box and liquid waste box. The working principle of this system is, put hydrogenous fuel and oxide undertake electrochemistry reacts inside special firebox, direct changeover becomes electric energy, the direct current of output is direct drive electromotor, electromotor drives paddle axis, advance submarine voyage. This system need not rate of changeover of dynamo and transformer, electric energy amounts to 60 ％ . 212A class submarine uses get together the output power of cell of fuel of 4 fluorine ethylene is every groups of 34kW, general power 306kW.

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Bavin - electrodynamic the system is comprised by derv generation set, accumulator group and distribution facilities. Diesel engine is diesel engine of high speed of pressure boost of a 16V396 that German MTU company produces waste gas, power 3120kW, min of ／ of rotate speed 2000r. The dynamo is take series connection commutator communicate electric machinery of permanent magnetism synchronism without brush; Advance electric machinery to be motive of dc of low rotate speed, rated power 2850kW, min of ／ of 200r of top rotate speed. Bavin? Electrodynamic the accumulator group in the system can satisfy voyage of submarine high low speed and power supply of electrified wire netting of full a light boat to ask.