Consider a missile fired at right angles to its target if the missile is flying at the same speed as the target, it should "lead" it by 45 degrees, flying to an impact point far in front of where the target was when it was fired. So if the target remained at 5 degrees left between two rotations of the mirror, the electronics would not output any signal to the control system. The Sidewinder is not guided by the actual position recorded by the detector, but by the change in position since the last sighting. ( January 2023) ( Learn how and when to remove this template message) Statements consisting only of original research should be removed. Please improve it by verifying the claims made and adding inline citations. This article possibly contains original research. Design A missile (blue) intercepts a target (red) by maintaining constant bearing to it (green) Air Force spokeswoman Stephanie Powell said that its relatively low cost, versatility, and reliability mean it is "very possible that the Sidewinder will remain in Air Force inventories through the late 21st century". In 2010, Boeing won a contract to support Sidewinder operations through 2055. The AIM-9 has an estimated 270 aircraft kills. It has been built under license by Sweden and other nations. and 27 other nations, of which perhaps one percent have been used in combat. The Sidewinder is the most widely used air-to-air missile in the West, with more than 110,000 missiles produced for the U.S. Its adaptability has kept it in service over newer designs like the AIM-95 Agile and SRAAM that were intended to replace it. This led to all-aspect capability in the L version, which proved an effective weapon during the Falklands War and Operation Mole Cricket 19 ("Bekaa Valley Turkey Shoot") in Lebanon. Originally a tail-chasing system, early models saw extensive use during the Vietnam War, but had a low success rate. Due to the Sidewinder's guidance system, the brevity code " Fox 2" is used when firing the AIM-9. This modularity allowed for the introduction of newer seekers and rocket motors, including the AIM-9C variant, which used semi-active radar homing and served as the basis of the AGM-122 Sidearm anti-radar missile. Low-level development started in the late 1940s, emerging in the early 1950s as a guidance system for the modular Zuni rocket. The Soviet K-13 (AA-2 "Atoll"), a reverse-engineered copy of the AIM-9B, was also widely adopted. Its latest variants remain standard equipment in most Western-aligned air forces. Entering service with the United States Navy in 1956 and the Air Force in 1964, the AIM-9 is one of the oldest, cheapest, and most successful air-to-air missiles. The AIM-9 Sidewinder ("AIM" for "Air Intercept Missile") is a short-range air-to-air missile. Aircraft, naval vessels, fixed launchers, and ground vehicles
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