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Guided missile short-range AIM-9L Sidewinder

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    Basing

    :

    Plane

    management system:

    Thermal

    GOS

    Warhead:

    high-explosive/fragmentation/incendiary

    Application:

    air-to-air

    Country:

    U.S.

    Range:

    18 km.

    year development:

    1976

    short-range guided missile aim-9l sidewinder The Vietnam War showed low efficiency, all modifications missiles "Sidewinder". The use of these missiles to impose severe restrictions on the maneuverability of the aircraft carrier. But to get the goal, maneuvering with a large overload proved quite difficult.

    new missile AIM-9L "Sidewinder" was developed in 1971 as a joint program of the Air Force and the U.S. Navy in 1976 after flight testing was put into service. Compared with the previous modifications, it has much better combat characteristics. This was achieved through the improvement of virtually all missile units while keeping weight and size SD AIM-9H.

    AIM-9L can be used in almost all modern aircraft, the Air Force and the U.S. Navy: A-10, F-4, F-14, F-15, F-16, F/A-18, Tornado, Sea Harrier and Hawk .

    AIM-9L is designed for use in good weather conditions and mainly in the daytime.

    Composition

    As early modifications, AIM-9L made of aerodynamic configuration "duck". It has a cylindrical body with a diameter of 127 mm and a cross-shaped trapezoidal back wings. Trailing edge of the wings are set rollerony provides limited angular velocity of rotation relative to the longitudinal axis of the missile.

    missile has a passive infrared seeker, consisting of the following main elements:

    fairing of magnesium fluoride,

    rotating optical system is mounted on a rotor gyro,

    radiant energy receiver - detector of indium antimonide (in AIM-9H unused detector made of lead sulfide),

    modulating disk linear focusing plane of the system, using the target image which is projected onto the receiver,

    cryogenic refrigeration system photoresistor. Argon, which is used in this system is in the tank, placed in the housing missiles, allowing it to hang on the aircraft without modifying their launchers (in earlier versions of missiles "Sidewinder" cylinders were launchers on the aircraft carrier). < / p>

    GOS has greater sensitivity and the ability to capture not only the goals from their rear, but the front hemisphere. Another improvement is the increase in the maximum deflection angle and velocity tracking coordinator purpose. To improve noise immunity GOS reduced its field of view.

    maximum angular velocity tracking coordinator GOS is 20 deg / s, the maximum bearing angle of ± 40 °, relative to the Sun deadband of ± 5 °. Frequency 125Hz review. Indication of the seizure of the GOS objectives carried by sound signal.

    In electronic circuit

    missiles AIM-9L widely used chip. Also, like the AIM-9H, the electric generator as a rocket using a thermal battery, but used a more powerful actuator as a result of which increased maneuverability missile.

    short-range guided missile aim-9l sidewinder

    warhead missiles AIM-9L-stick-type fragmentation. It is arranged in two layers of steel rods with a notch for the formation of fragments given weight. Detonation is performed by applying pulses from the initiating fuse simultaneously at both ends of the explosive charge, which makes it possible to form a stream of fragments appropriately.

    Using a new warhead required to improve the accuracy of outputting at its subversion, so created for SD AIM-9H infrared fuse has been modernized. In addition, developed a new - Laser - proximity fuze. Its main elements are the transmitting and receiving parts. As used laser energy emitter diode formed on the gallium arsenide and reflected from the target reception signal by using a silicon photodiode.

    As a result of work on improvement of the solid propellant were increased while it is running, and the total momentum (up to 40 by the use of larger checkers).

    PERFORMANCE

    Diameter, mm

    127

    Length,

    2870

    Wingspan mm

    630

    Range, km

    18

    Speed, M

    2,5

    Starting weight, kg

    86

    Warhead weight, kg

    8,32

    Maximum overload

    media startup, g

    7





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