The U.S. Air Force is conducting fatigue tests on F-15C/D/Es to assess whether the aircraft are suitable for a service life extension program (SLEP). The fleet is expected to be good for about 8,000 flying hours, and Lt. Gen. Mark Shackelford, military deputy for the Air Force acquisition czar, says a SLEP could take them to 12,000 flying hours. The service is also exploring a SLEP for the F-16, which would take the aircraft from 4,000 flying hours to 8,000 flying hours. Extending ...


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