Fatigue Certification of General Aviation Aircraft in Australia

This paper deals broadly with three aspects of the fatigue substantiation of general aviation aircraft structures. It describes the development of the Australian fatigue substantiation requirements for general aviation aircraft; it presents the results of local work in the acquisition of loads spectra for a range of aircraft, including pressurized and nonpressurized light twins, and it discusses some specific problems affecting the safe life and fail-safe substantiation of general aviation aircraft structures. Recent Australian work on ground taxi load spectra and on the endurance and radiographic inspectability of laminated spar caps is described.