ENGINEERING SERVICES FOR A FULL SCALE FATIGUE TEST (FSFT) ON AN F-15 AIRCRAFT

Description of the Supplies/Services required to meet the agency's needs: The purpose of the F-15 Sustaining Engineering Services - Full Scale Fatigue Test (FSFT) effort is to continue full scale fatigue testing of an F-15C test article (designated FTA7) and an F-15E test article (designated FTE10). This effort requires testing and analysis performed by (Boeing) to assess the ramifications of flying F-15 aircraft beyond the design service life. This test is a large scale highly specialized effort requiring extensive engineering knowledge and expertise in the fields of aerodynamic loads, distribution of loads through the structure, and operational usage specific to the F-15. The service is split into three services sections: testing (cycling)/repairing, limited teardown of the test articles, and limited fatigue analysis of prioritized cracked locations found during testing. The FSFT is being performed on two existing fleet aircraft. The goal of this logical follow-on contract is to test FTA7 to an additional 33,000 Equivalent Flight Hours (EFH) and FTE10 to an additional 13,500 EFH. The test spectra are based on actual fleet usage and will be the same as that used for the initial FTA7 and FTE10 testing. Teardown and analysis tasks associated with this effort include partial disassembly, inspection, and fractographic analysis of selected parts experiencing cracking during the course of the testing.