@waiyao9s9s: The US F-22 Raptor fighter is a fifth-generation stealth air superiority fighter jointly developed by Lockheed Martin and Boeing. It made its first flight in 1997 and entered service in 2005. It is the world's first stealth fighter to be put into service. Its low-observable design combines composite materials, diamond-shaped fuselage and radar-absorbing coatings, combined with the dual vector thrust of the F119-PW-100 turbofan engine to achieve supersonic cruise (1.82 Mach) and super maneuverability. The AN/APG-77 active phased array radar and sensor fusion technology give it the advantage of detecting and striking the enemy first. The built-in bomb bay can carry AIM-9X close-range combat bombs, AIM-120D medium-range bombs and JDAM precision-guided bombs, taking into account both air combat and ground attack missions. Due to high costs (about $150 million per aircraft) and strategic adjustments, the production line was closed in 2011, with only 187 aircraft produced. About 150 aircraft are currently in service with the US Air Force. Export is prohibited by the International Traffic in Arms Regulations. Although it faces challenges from the F-35 and the sixth-generation aircraft, it is still regarded as the most powerful air superiority fighter in the 21st century. #Fifth-generationaircraft #Raptorfighter #f22 #Militaryscience

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Sunday 23 March 2025 05:13:44 GMT