F-35 Costs
http://www.saffm.hq.af.mil/shared/media/document/AFD-100128-072.pdf From the USAF Feb.2010
F-15 costs
http://www.flightglobal.com/articles/2009/06/04/327369/boeing-eyes-risk-sharing-lower-costs-for-100-million-f-15se.html
http://www.freerepublic.com/focus/f-news/2491833/posts
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