The propulsion section now incorporates a jet-vane steering system for enhanced post-launch agility. The guidance section has been redesigned and features an imaging infrared seeker.
Major physical changes from previous versions of the missile include fixed forward canards, and smaller fins designed to increase flight performance. The AIM-9X has the same rocket motor and warhead as the AIM-9M. The AIM-9M-9 has expanded infrared countermeasures detection circuitry.ĪIM-9X is the newest variant of Sidewinder. These modifications increase ability to locate and lock-on a target and decrease the missile's chances for detection. The M model has improved defense against infrared countermeasures, enhanced background discrimination capability, and a reduced-smoke rocket motor. The AIM-9M has the all-aspect capability of the L model, but provides all-around higher performance. The improved warhead uses new explosive material that is less sensitive to high temperature and has a longer shelf life. It also has added mechanical strengthening to the warhead as well as the guidance and control section. The most recently developed version, the AIM-9P-3, combined both the active optical target detector and the reduced-smoke motor. The AIM-9P-1 has an active optical target detector instead of the infrared influence fuse the AIM-9P-2 added a reduced-smoke motor. The more maneuverable P model also incorporated improved solid-state electronics that increased reliability and maintainability. The AIM-9P, an improved version of the J model, has greater engagement boundaries, enabling it to be launched farther from the target. Production and delivery of the AIM-9L began in 1976. The L model was the first Sidewinder with the ability to attack from all angles, including head-on. A conical scan seeker increased seeker sensitivity and improved tracking stability. An improved active optical fuse increased the missile's lethality and resistance to electronic countermeasures. The AIM-9L added a more powerful solid-propellant rocket motor as well as tracking maneuvering ability. Deliveries began in 1977 to equip the F-15 and other Sidewinder-compatible aircraft. The AIM-9J, a conversion of the AIM-B and E models, has maneuvering capability for dogfighting, and greater speed and range, giving it greater enhanced aerial combat capability. These shortcomings were eliminated on subsequent versions. It could not engage targets close to the ground, nor did it have nighttime or head-on attack capability. The initial production version, designated AIM-9B, entered the Air Force inventory in 1956 and was effective only at close range. The AIM-9A, a prototype of the Sidewinder, was first fired successfully in September 1953. The infrared seeker also permits the pilot to launch the missile, then leave the area or take evasive action while the missile guides itself to the target. An infrared unit costs less than other types of guidance systems, and can be used in day/night and electronic countermeasures conditions. The infrared guidance head enables the missile to home in on target aircraft engine exhaust. The missile's main components are an infrared homing guidance section, an active optical target detector, a high-explosive warhead and a rocket motor. Both rollerons and control surfaces are in a cross-like arrangement. Also, it has detachable, double-delta control surfaces behind the nose that improve the missile's maneuverability. The AIM-9 has a cylindrical body with a roll-stabilizing rear wing/rolleron assembly. Early versions of the missile were extensively used in the Southeast Asia conflict. Navy for fleet air defense and was adapted by the U.S. It has a high-explosive warhead and an infrared heat-seeking guidance system. The AIM-9 Sidewinder is a supersonic, heat-seeking, air-to-air missile carried by fighter aircraft.
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