Flygplan F-22A Raptor
Flygplan F-22A Raptor
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Flygplan F-22A Raptor, längd 328,9 mm, bredd 283,6 mm, totalt antal delar 380+, plastbyggsats.
The Lockheed F-22 Raptor is an American fighter aircraft with highly developed ground attack capability as well as electronic warfare and electronic clock. The F-22 was in April 1991 the winner of the competition announced by the USAAF for the Advanced Tactical Fighter, which dates back to 1981. It was then that a $12 billion program was launched and the construction of a highly maneuverable, indirectly controlled, Stealth- fighter jets started. The US Navy joined the program in April 1986, hoping to build a successor to the F-14 Tomcat. Later that year, the Department of Defense announced that Lockheed and Northrop had advanced to the next stage. Each of the companies would build a prototype, designated YF-22 and YF-23 respectively. Since then, Lockheed merged with Boeing and General Dynamics, which later resulted in a division of work on production aircraft between the Boeing and Lockheed factories. The first prototype YF-22 was named 87-3997 / N22YF and was equipped with newly built General Electric YF120 engines.
The flight of the aircraft took place on 29 September 1990. Shortly afterwards, on 30 October 1990, a second 87-3998 / N22YF prototype was flown, powered by an alternative Pratt-Whitney YF119 engine. After a careful comparison of the parameters with the competing YF-23 by the Northrop / McDonnell Douglas team, it was announced that the winner of the competition was the YF-22 with the YF119 engine.
The design of the final version of the F-22A was frozen in March 1992. The differences compared to the prototype included an increase in the wingspan of a trapezoid shape to 13.59 m, which, however, did not increase the wing area, a reduction in the thickness of the wing profile at the root and its twist, which better ensured the maneuverability of the aircraft in terms of supersonic speeds. The area of the dual vertical tail was also reduced to 27.2 m2.
The Lockheed F-22 Raptor is one of the first, if not the only, fifth-generation fighter in the world. Thanks to the use of a completely new power unit (two Pratt-Whitney F119-PW-100 engines with vector thrust) and low aerodynamic resistance, the speed of the F-22 - according to unofficial data - exceeds 2.4Ma. In addition, it is very maneuverable, which allows you to perform such acrobatic figures as, for example, Pugacheva cobra or Kulbit. Another important feature of the F-22 is the Stealth technology, though based less than the F-117 on RAM, and more on aerodynamic excellence, overall shape of the aircraft and refined exterior details. However, the exact radar view (RCS) is still classified.
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