European aircraft industry demands for reduced development and operating costs, by 20% and 50% in the short and long term, respectively. Contributions to this aim are provided by the completed project POSICOSS and the running follow-up project COCOMAT, both supported by the European Commission. As an important contribution to cost reduction a decrease in structural weight can be reached by expl...

An overview of future structures technology for military air vehicles is given. The overview is prefaced by a discussion of the factors influencing structures research today. The key to meeting affordability and rapid technology insertion is identified as simulation-based prototyping, including certification by analysis. Other enabling structures technology candidates for future systems are dis...

This paper deals with the study and comparison of passive and active landing gear system of  the aircraft and dynamic responses due to runway irregularities while the aircraft is taxying. The dynamic load and vibration caused by the unevenness of runway will result in airframe fatigue, discomfort of passengers and the reduction of the pilot’s ability to control the aircraft. One of the objectiv...

This report has been produced in order to address aerodynamic characteristics and stability and control issues relating to hypersonic vehicles that are deemed to be significantly different from those of the conventional (subsonic or supersonic) air vehicles. In particular we have addressed issues that are relevant to stability and control of hypersonic vehicles. This report should add to the ex...

This document is disseminated under the sponsorship of the Department of Transportation in the interest of information exchange. The United States Government assumes no liability for its contents or use thereof. The Traffic Alert and Collision Avoidance System (TCAS) III seeks to enhance the capabilities of TCAS II by providing additional encounter resolution in the horizontal plane. The additi...

Advanced manufacturing processes such as near-net-shape forming can reduce production costs and increase the reliability of launch vehicle and airframe structural components through the reduction of material scrap and part count and the minimization of joints. The current research is an investigation of the processing-microstructure-property relationship for shear formed cylinders of the Al-Cu-...

The engineering of the Air and Space Operations Center (AOC) resists the application of traditional systems engineering approaches. More like an enterprise (with multiple sets of stakeholders representing separate fiefdoms and principalities, differing funding sources, and different management structures for the component pieces) than an airframe or a tank; the AOC is actually a “complex system...

The Council of European Aerospace Societies (CEAS) Aeroacoustics Specialists Committee (ASC) supports and promotes the interests of the scientific and industrial aeroacoustics community on an European scale and European aeronautics activities internationally. In this context, ‘‘aeroacoustics’’ encompasses all aerospace acoustics and related areas. Each year the committee highlights some of the ...