.

Submarine 212

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    Country

    Germany

    type

    attack submarines

    General characteristics

    Length (m):

    56

    Width (m):

    7

    Displacement (tons):

    1830 scuba
    1450 overwater

    Speed (knots):

    12 overwater
    20 scuba

    Range (miles):

    8000

    Immersion depth (m):

    700

    Draft (m):

    6

    Crew:

    27

    Vooruzhenie

    torpedo tubes:

    6 533 mm

    Mines:

    24

    submarine 212

    Create

    in Germany submarine project "212" with high probability means the beginning of the technological revolution in the field of non-nuclear submarine, since it is the first serial submarine combined with the main power plant consisting of a diesel-electric plant and electrochemical generator.

    Work on the project "212" were started by German firms in 1988.

    Design submarine project "212" is traditional for the German submarine. Robust housing consists of two cylindrical sections of different diameters connected by a short conical section. In the bow torpedo tubes placed with firing systems, batteries, central office, premises and systems of life support. In the connecting section contains the fuel cell stack of polymer electrolyte membranes. The aft section of smaller diameter located core modules of the power plant, which operates automatically during normal user mode does not require maintenance personnel. Main ballast tanks are located in the fore and aft ends of the outer hull. The aft cylinders are placed as high-impact with liquid steel and oxygen with a hydrogen source vessel - a metal hydride.

    The new design

    German submarines are the location of the horizontal rudders on the fence cutting and application of X-shaped stern rudders for better handling boat submerged.

    main feature of the power plant is included in the composition of its electrochemical generator, fuel cell modules which when hydrogen and oxygen is released electrical energy. When this energy conversion occurs silently, and the only byproduct of the reaction is distilled water, which is easy enough to be used on a submarine.

    submarine 212

    By criteria of efficacy and safety, it was decided to keep the hydrogen in the bound state in the form of a metal hydride (special alloy metal in combination with hydrogen) and oxygen - in liquefied form in special containers between the lung and the submarine pressure hull.

    Consisting of 9 modules electrochemical fuel cell generator has a total capacity of 300 kW (according to other foreign press - 800 kW) and provides movement submarine submerged at a speed of 3 knots for 20 days with rates below the natural noise noise Sea.

    Despite the obvious advantages of an electrochemical generator, it does not provide the required operational and tactical characteristics of the submarine ocean class, especially as regards implementation of high-speed maneuvers in pursuit of a goal or evading enemy attacks. Therefore submarine project "212" equipped with a hybrid propulsion system in which to move at high speeds under water used batteries or fuel cells, and swimming on the surface - a traditional diesel generator, which is composed of 16-cylinder V -type diesel MTU Series 396 and synchronous AC generator. Diesel generator is also used to recharge the battery - a traditional element of control submarines.

    submarine 212

    battery is installed on the submarine project "212", performed in two groups, each consisting of 144 lead-acid battery. The battery is capable of providing movement of the boat with a maximum speed of 20 knots for a few hours. The advantage of working in tandem with the battery control the fuel cell is that it provides stable operation of the battery in the optimal mode of discharge, resulting in their lifetime increased from 4-6 to 6-8 years.

    as a mover used large diameter propeller blades saber form. The reduced rotational speed of the blades allows high efficiency screw and improves the acoustic characteristics

    On the boat set

    PERMASYN motor from Siemens. In this motor drive system employed permanent magnets made of materials based on rare earth elements. As compared with conventional engines of equal power PERMASYN has 40% less weight and 60% smaller volume.

    submarine 212

    When drafting "212" special attention was paid to reducing noise and other basic physical fields used anti-submarine forces to detect submarines. To minimize the noise level has a number of constructive solutions. PL has a lightweight body with optimal viewpoint hydrodynamic characteristics form. To improve aerodynamics and thus reduce hydrodynamic noise all the holes of the outer hull and conning tower fence when moving submerged closed shutters. Deck attached to the housing by a durable elastic inserts, all mechanisms are mounted on two-stage soundproof platforms, and most of them are noisy (diesel generators, compressors, etc.) are placed in a soundproof Partitions. Special sound-absorbing coating of the outer hull of the submarine provides its low visibility for active sonar enemy.

    Rugged construction and other new boats made of magnetic steel and lightweight body - made of fiberglass, so PLimeet unprecedented low level magnetic field.

    In addition, significantly reduced the visibility of the submarine on the thermal field, which is a consequence of the high energy conversion efficiency when operating control. Installation of the fuel cell is operated at a relatively low temperature (80 ° C), and the heat generated during operation, is used to further maintain the electrochemical reaction. This provides a balance between heat resistant PL and the environment for a long time. Water - the only reaction product - used for domestic purposes, and further accumulated in special tanks. Provided partial dump it overboard, which is believed to be weak unmasking factor for submarine detection.

    Surprisingly, for the ultra-modern submarine, the submarine project as "212", there is no normal for modern diesel submarines missiles as anti-ship cruise missiles. This weapon is planning to include in the armed submarines only in the future.

    Many experts believe that NATO submarine project "212" has unique operational and tactical properties by equipping the latest tools to detect targets, weapons increased range and their integration into an automated command and control (ASBU) MSI -90U development of Norwegian firm Norsk Forsvarsteknolgi A / S.

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    S186 U362012

    submarine 212





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