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Antiaircraft missile Patriot PAC-3

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    Basing

    :

    chassis

    management system:

    Radar GOS

    Warhead:

    Concussive-cumulative

    Application:

    antiaircraft, missile

    Country:

    U.S.

    Range:

    20km.

    year development:

    1999

    air defense missile system patriot pac-3 The anti-aircraft missile system "Patriot" PAC-3 (Patriot Advanced Capability-3) - one of the last upgrade options known SAM "Patriot" and is designed to intercept tactical ballistic warheads and cruise missiles, including those made using the technology of "stealth".

    In the process of creating this complex on a competitive basis, developed two versions of SAM.

    first carried out under the leadership of the company "Ratheon" and included the development of improved in accordance with the program ATRR (Advanced Tactical Patriot Program) antiaircraft missiles MIM-109 with active homing, high-explosive warhead and increased by 0.76 m length of the engine. Dimensions and weight missiles MIM-109 almost matched MIM-104 missile, and at the same time disposable overload new rocket reached 40 g.

    second option proposed by "Loral Vought Systems", involves the use of a complex "Patriot" PAC-3 missile highly maneuverable direct hit ERINT (Extended Range Interceptor).

    In August 1994, the competition commission chose the second option and the firm "Loral Vought Systems" was signed a contract worth 515 million dollars. and duration of action of 47 months. SAM ERINT created primarily as an interceptor missile lower foreign theater of operations, in addition to the Tap upper abroad - rocket THAAD. Fea-3 is to use shielded active homing and relatively short range - up to 15-20 km ballistic and 40-60 km for aerodynamic purposes. At the same time maximizing the opportunities for and minimize the cost of a combat mission in the PAC-3 battery includes missiles earlier variants of the PAC-2.

    In July 2003, Lockheed Martin started the program PAC-3 MSE to improve the PAC-3 missiles, including an increase in the size of their half of the affected area, as well as their adaptation for use in other air defense systems, including ship. To do this, the PAC-3 MSE is planned to equip the new double main engines incorporating 292 mm diameter firm Aerojet, establish a system of two-way communication with the command post missile Patriot air defense system and carry out a number of other activities. The first test MSE held May 21, 2008

    Composition

    air defense missile system patriot pac-3 antimissile ERINT is a single-stage solid-propellant missile, made by normal aerodynamic configuration with a small aspect ratio wings and aerodynamic control surfaces-ailerons

    After launch the missile using inertial guidance system moves to the point of capture target active homing missiles. In this phase of flight used to control the aerodynamic control surfaces, which also impart rotation of the missile relative to the longitudinal axis at a speed of 30 rev / min. During the flight, the target location is constantly refined ground-based and formed corresponding correction signals to be transmitted to the missile. Before capturing target active radar head resets housing nose cone and radar antenna is over the center of the space occupied by the target. After the capture of the rotation speed is increased to 180 missiles / min and further control its flight is made by incorporating small engine located in the nose.

    main role ERINT missiles is "finishing" missed the top line of defense MAF and TRUNC one single (possibly paired) fire without having to restart the analysis results of the first fire due to the lack of spatio-temporal features. Hence, the main task in the emerging SAM ERINT theater missile defense system is a high probability of destruction of the payload of a ballistic missile with different combat gear. This problem is solved with precision guidance and kinetic defeat MAF as a result of a direct hit in the payload bay at altitudes up to 15km.

    Limiting the maximum height

    kinetic defeat MAF 15-20 kilometers allows SAM to implement sufficiently high aerodynamic overload angle of attack 10 ... 14 °. Precision guidance and a direct hit into the bay warhead provided by a combination of accurate information about the target (due to the use of active radar homing millimeter wave, which creates a "profile" to the definition of objectives aiming point - the payload bay) and extremely small reaction time when developing rocket teams control (due to the use of gas-dynamic torque control).

    To implement torque control gas flow in a rocket ahead of the center of mass ERINT set pulse propulsion (IMU), which consists of 180 single pulse radially arranged mikroRDTT (10 rings and 18 engines). IMU total weight of 21.6kg supplied fuel charge weight 3.852kg has a length of 365mm and 255mm diameter.

    When working in the fore part of the rocket motors, the influence of pulsed transverse jets ejected by located in the rear aerodynamic control surfaces causes considerable disturbing moments. Specifically, in this regard, the homing site, staffed mikroRDTT IMU rocket attached forced rotation of the roll at a speed of 3 / sec, and the tail control surfaces are used only as an aileron. (Rotation missiles also contributes to a more economical use of thrusters.)

    Due

    much smaller missile ERINT it is placed in a quantity of 16 pieces consisting of existing launchers M901 four missiles in each container SAM MIM-104 (see photos 1, 2, 3, 4). In order to maximize the opportunities SAM "Patriot" PAC-3 is planned to combine launchers with missiles MIM-104 and ERINT, which will increase fire mosh battery by 75%.

    PERFORMANCE

    rocket diameter, mm

    254

    rocket length, mm

    5010

    Wingspan mm

    560

    Mass

    rocket kg

    318

    Warhead weight, kg

    73

    Weight striking tungsten fragment kg

    0,214

    height of defeats the purpose, km

    Prior

    20

    Features single pulse mikroRDTT Zour ERINT

    total momentum thrust, kgf-with

    About 15

    Maximum thrust (average over time), kg

    330 (220)

    time (average), with

    0.023

    Housing length / diameter, mm

    65/25

    weight of the engine (no fuel), kg

    0.041

    Mass consumption, kg

    0.0214

    tests and operation

    During testing missiles ERINT repeatedly achieved by direct contact with the attacking ballistic missiles. During one of these tests, which took place on March 15, 1999, was destroyed by a direct hit missile target HERA, representing the second and third stages of ICBMs "Minuteman-2".

    According to the creators

    rocket ERINT, it is capable of destroying ballistic missiles with a range of 1,000 km, including filled with chemical warheads.





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