November 23, 201114 yr From Flight Global [excerpt] US Air Force looks to dramatically extend F-15 service lifeBy: Stephen Trimble Washington DC Boeing has launched a four-year structural analysis of the US Air Force F-15 fleet, with the aim of doubling to quadrupling the service lives of the two major variants. The USAF has also revealed new interest in critical avionics and mission system upgrades for the 40-year-old airframe, as it seeks to keep at least some of its 414 F-15C/D fighters and F-15E fighter/bombers flying for decades to come.
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