Widespread criticism of the ANEF system to predict aircraft noise impacts has lead to the use of supplementary tools (N70, NXX, 10+,TA, daily ANEF). Do these tools work? Are they of benefit to the community or the aviation industry? Do they add confusion? Are they appropriate for military aircraft or general aviation? Australian Standard AS2021 [1] considers in the first instance the suitabilit...

+ ve G) were countered with limited success by pressure suits, horizontal posture, etcUpward forces (i.e. ve G) were less well tolerated. Whereas the former caused first greying out due to loss of colour vision, then blacking out and final unconsciousnessi recovery usually took place on removal of the stress in good time. On the other hand* with negative G a red out occurred, leading to cerebra...

High precision 4D flight path predictions are crucial for reliably optimizing the complex ATM/ATC system. The presented enhanced jet performance model provides a significant improvement over currently applied trajectory prediction methods. The use of purely analytical methods allows a high level of adoption of the real physical aircraft environment. This paper presents the model and applies the...

The aim of this article is to provide a broad overview of current and future noise reduction technologies used in aircraft industries. It starts by recalling the regulation framework and the European incentives that have triggered efforts in this domain, as well as the major dedicated EU research programs. Then, technologies are introduced in four parts: engine nacelle, fan, jet and exhaust tec...

The air transportation system is a large, complex, global system that transports over 2.1 billion passengers each year. Air traffic delays have become a huge problem for passengers and airlines; they even make the headlines in the popular press and lead to new legislation. Aircraft are also the fastest growing contributor to man-made greenhouse gas emissions. According to the Joint Economic Com...

This paper describes an experimental evaluation of the diagnostic concepts implemented in a prototypical case-based reasoner (CBR), called Epaion. The reasoner operates in the domain of in-flight fault diagnosis and prognosis of aviation subsystems, particularly jet engines. The evaluation used actual aircraft accidents and incident cases, which were simulated to assess the effectiveness of Epa...