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Two different types of software developed for aircraft safety analysis are described. The Flight Data Recorder Visualiser (FDRV) has been developed to allow interactive, 3D visualisation of FDR/QAR data on low-cost PC platforms. The Air Accident Investigation Tool (AAIT) allows simplified computer-reconstruction of air accidents. Both programs have been successfully applied to air accident/incident investigations. The background, applications and future developments of these programs is outlined in this paper.

Use is made of the KRASH program to simulate a simplified car-into-barrier impact. A step-by-step modelling technique is illustrated whose application at an early stage in the design process, allows an understanding of the contribution of individual components to the overall crash-performance of a vehicle.