Original sentence: " Air Force magazine, 26 May 2009." F-22 Team web site."Honed to a Razor’s Edge.JPG  |type= Stealth Air superiority fighter.Retrieved: 23 July 2009.Retrieved: 27 May 2009.er\My Documents\My Pictures\Editied Oshkosh\IMG_3665-1.first flight= YF-22: 29 September 1990 F-22: 7 September 1997"Chronology of the F-22 Program.introduction= 15 December 2005.manufacturer= Lockheed Martin Aeronautics Boeing Integrated Defense Systems.more users=.national origin = United States.number built= 141 as of May 2009Sirak, Michael C.primary user= United States Air Force.program cost= US$65 billionNY Times.status= In service.unit cost=US$137.5 million (2008 flyaway cost).variants with their own articles = X-44 MANTA FB-22