Diesel submarines Oyashio

Key TTX DPL type Oyashio

Length: 82 m
Width: 8,9 m
Draft: 7,9 m
Displacement: 2,700 above-water, underwater 3000 m
EC: single-shaft, diesel-electric, 2 diesel generators, 2 x 2380 hp
Speed: surfaced 12 submerged 20 knots
Armament: 6 533 mm torpedo - 20 torpedoes, ammunition Type 89, Type 80 and anti-ship missiles "Harpoon", mines
CEO: CEO ZQQ-5B, towed passive CEO ZQR-1
Crew: 69 people (10 officers)
Series:
SS590 "Oyashio" (1998) SS590 "Oyashio" (1998)
SS591 "Michishio" (1999) SS591 "Michishio" (1999)
SS592 "Uzushio" (2000) SS592 "Uzushio" (2000)
SS593 "Makishio" (2001) SS593 "Makishio" (2001)
SS594 "Isoshio" (2004) SS594 "Isoshio" (2004)
SS595 "Narushio" (2005) SS595 "Narushio" (2005)
SS596 construction, scheduled for commissioning in 2005
SS597 construction, scheduled for commissioning in 2005
SS598 construction, scheduled for commissioning in 2006
SS599 construction, scheduled for commissioning in 2007

Oyashio. Since 1998, the completion of the new Japanese Navy submarines at the expense of commissioning Submarine Oyashio.

These boats surpass all operated by the Japanese navy boat on a number of critical parameters, particularly on reserve, diving depth, the ability of weapons systems and radio equipment.

Home Submarine SS590 Oyashio in a series of 10 units was laid on the shipyard company Kawasaki 26 January 1994, putting it into operation took place on March 16, 1998 The building of all the other ships scheduled to be held at the same shipyard.

For the main architectural and structural solutions Submarine Oyashio differs significantly from all previously constructed by Japanese submarines. First of all, the designers abandoned doublecase design in favor of mixed: in the central part of the body is made of single-circuit, and in the bow and stern, which are the main ballast tanks - at doublecase.

Unlike traditional droplet shape, the case has streamlined cigar-shaped. Structurally, it consists of a central cylinder of diameter 8,9 m, supported by the inside frames, and paired with truncated cones Cylinders fore and aft parts of the external arrangement of frames. There are four entrance hatch. Luke first compartment is combined with torpedopo. When construction of the shell used nonmagnetic stainless steel, including the type of NS-110 with a yield strength of 110 kg/mm2.

Another feature of the case Submarine Oyashio is the presence on it stretches the entire length of the superstructure that is used for placement of antennas hydroacoustic stations, mooring devices and auxiliary equipment. The upper surface of the superstructure is made in the form of a flat deck, which significantly simplified the movement of crew members on the hull, for example when carrying out mooring operations.

Fencing mines retractable devices placed around the middle of the submarine hull. It enshrined hydroplanes. Tail feathers done cross.

Diesel-electric main power plant works on the scheme with full elektrodvizheniem. It consists of two diesel generators with a capacity of 1,850 kW (included in the composition of diesel generators, diesel engines Kawasaki 12V-25/25 develop a capacity for 2,380 liters. Pp.), Two located under the "tandem" propelling electric motor for 3380 liters. With and two groups of batteries (for 240 elements in each).

In an engine used in low speed propeller of large diameter. Screw semilopastnoy, with a strong otkidkoy blades.

When driving in a submerged boat develops the highest speed of 20 knots on the surface - 12 knots. It should be noted that the design Submarine Oyashio was paid particular attention to lowering the intrinsic noise of the main power plant: its mechanisms are installed on the damping shock absorbers, preventing the spread of oscillations on the body. In addition, to reduce the visibility of the submarine in its designs are widely used elements of stealth technology: the angles of inclination of planes lining surface part of the outer hull and cabin provide reduction of the effective area of scattering and sound-absorbing coating can help reduce the visibility of sonar.

The submarine is equipped with six 533 mm bow torpedo tubes type HU-603B hydraulic system of fire and air turbo pumps. It incorporates a new layout of the torpedo tubes: they are placed compactly in the first compartment is close to the center line and leave a light on a spherical shell sonar antenna, unlike submarine earlier buildings in which the torpedo tubes were placed in the second compartment pobortno. Overall ammunition is 20 torpedoes or missiles. The standard ammunition is composed of 12 universal Type-89 torpedoes and antiship missiles Sub-Harpoon, as well as 8 small anti-submarine torpedoes type 80. In addition, we plan to use Submarine Oyashio productions looking for a hidden self-propelled mine-type KRX-2.

The draft of the new submarines have been further developed automation tools and computer technology, enhancing the efficiency of the challenges of combat and everyday activities with a reduced number of crew (69 people) in contrast to the earlier submarine built (75 people).

The submarine is equipped with the combat information and control system of a new modification AN/ZYQ-3, designed for collecting, processing, analysis and display in real time all the data about the environment, arms control, technical means and mechanisms of the submarine. Radio-electronic weapons are represented hydroacoustic complex AN/ZQO-5B, radar AN/ZPS-6, electronic intelligence station AN/ZLR-7, optoelectronic periscope to broadcast video monitors at the central command post, means anti-torpedo protection, navigation equipment and communications.

The structure of submarine sonar system consists of a spherical active-passive antenna operating in the range of medium and low frequencies, passive airborne conformal and towed linear type AN/ZQR-1, as well as hydro station intelligence. Radar AN/ZPS-6, operating at frequencies of 8.9 GHz, is designed to solve navigation problems, search and detection of surface and air targets.

Electronic intelligence station AN/ZLR-7 provides search, intercept and direction finding signals of radio electronic facilities (REF) in the range from 50 MHz to 18 GHz, and their automatic classification and identification, and issuing warnings about the work of RECs anti-submarine forces of the enemy. Communication facilities include KB-and VHF radios, a radio receiving equipment ultralow frequencies submerged to a depth of 30 m and station sonar communication. According to specialists, the life of submarines will be 17 years.

Sources:
Shunkov VN, Directory "Submarines"
Warfare.ru