The Lockheed Martin–Boeing F-22 Raptor is an American twin-engine, jet-powered, all-weather, supersonic stealth fighter aircraft. As a product of the United States Air Force's (USAF) Advanced Tactical Fighter (ATF) program, the aircraft was designed as an air superiority fighter, but also incorporates ground attack, electronic warfare, and signals intelligence capabilities. The prime contractor, Lockheed Martin, built most of the F-22 airframe and weapons systems and conducted final assembly, while program partner Boeing provided the wings, aft fuselage, avionics integration, and training systems. First flown in 1997, the F-22 descended from the Lockheed YF-22 and was variously designated F-22 and F/A-22 before it formally entered service in December 2005 as the F-22A. It replaced the F-15 Eagle in most active duty USAF squadrons. Although the service had originally planned to buy a total of 750 ATFs to replace its entire F-15 fleet, it later scaled down to 381 and the program was ultimately cut to 195 aircraft – 187 of them operational models – in 2009 due to political opposition from high costs, a perceived lack of air-to-air threats at the time of production, and the development of the more affordable and versatile F-35 Lightning II. The last aircraft was delivered in 2012. The F-22 is a critical component of the USAF's tactical airpower as its most advanced air superiority fighter. While it had a protracted development and initial operational difficulties, the aircraft became the service's leading counter-air platform. Its regular deployments have included Okinawa, the Middle East, and NATO's eastern flank. Although designed for air superiority operations, the F-22 first engaged in combat by conducting airstrikes in 2014 during the US intervention in Syria. The F-22 has carried out and supported airstrikes in the war in Afghanistan in 2017, 2025 strikes on Iran, 2026 strikes on Venezuela, and the 2026 Iran war. The F-22 is expected to remain a cornerstone of the USAF's fighter fleet until its successor, the Boeing F-47, is expected to enter service around 2030.
Development
Origins
The F-22 originated from the Advanced Tactical Fighter (ATF) program that the U.S. Air Force (USAF) initiated in 1981 to replace the F-15 Eagle and F-16 Fighting Falcon. Intelligence reports indicated that their effectiveness would be eroded by emerging worldwide threats emanating from the Soviet Union, including new developments in surface-to-air missile systems for integrated air defense networks, the introduction of the Beriev A-50 "Mainstay" airborne warning and control system (AWACS), and the proliferation of the Sukhoi Su-27 "Flanker" and Mikoyan MiG-29 "Fulcrum" class of fighter aircraft. Code-named "Senior Sky", the ATF would become an air superiority fighter program influenced by these threats; in the potential scenario of a Soviet and Warsaw Pact invasion in Central Europe, the ATF was envisaged to support the air-land battle by spearheading offensive and defensive counter-air operations (OCA/DCA) in this highly contested environment that would then enable following echelons of NATO strike and attack aircraft to perform air interdiction against ground formations; to do so, the ATF would make an ambitious leap in capability and survivability by taking advantage of the new technologies in fighter design on the horizon, including composite materials, lightweight alloys, advanced flight control systems and avionics, more powerful propulsion systems for supersonic cruise (or supercruise) around Mach 1.5, and stealth technology for low observability. The USAF published an ATF request for information (RFI) to the aerospace industry in May 1981, and following a period of concept and specification development, the ATF System Program Office (SPO) issued the demonstration and validation (Dem/Val) request for proposals (RFP) in September 1985, with requirements placing strong emphasis on stealth, supersonic cruise and maneuver. The RFP saw some alterations after its initial release, including more stringent signature reduction requirements in December 1985 and the addition of the requirement for flying technology demonstrator prototypes in May 1986. Owing to the immense investments required to develop the advanced technologies, teaming among companies was encouraged. Of the seven bidding companies, Lockheed and Northrop were selected on 31 October 1986 as Dem/Val finalists. Lockheed, through its Skunk Works division at Burbank, California, teamed with Boeing and General Dynamics, while Northrop teamed with McDonnell Douglas. These two contractor teams undertook a 50-month Dem/Val phase to compete for ATF full-scale development, culminating in the flight test of two technology demonstrator prototypes, the Lockheed YF-22 and Northrop YF-23; while they represented competing designs, the prototypes were meant for demonstrating concept viability and risk mitigation rather than a competitive flyoff. Concurrently, Pratt & Whitney and General Electric competed for the ATF engines.
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