In aviation, it is common to have several aircraft operating in similar conditions uneventfully, yet another aircraft, following suit, experiences an accident in the same conditions. With the same information available to crews of both aircraft, conditions can quickly change leading to an accident for one, while the other crews land safely. Should this situational ambiguity be the cause of the ...

We analyze the economic and emissions impacts on U.S. commercial aviation of the Federal Aviation Administration’s renewable jet fuel goal when met using advanced fermentation (AF) fuel from perennial grasses. These fuels have recently been certified for use in aircraft and could potentially provide greater environmental benefits than aviation biofuels approved previously. Due to uncertainties ...

The two official sources for aviation weather reports both provide weather information to a pilot in a textual format. A number of systems have recently become available to help pilots with the visualization task by providing much of the data graphically. However, two types of aviation weather data are still not being presented graphically. These are airport-specific current weather reports (kn...

The introduction of automation has accelerated in many industries to perform dangerous tasks or to achieve high efficiencies. Space autonomy, Internet, robotic vehicles, intelligent systems, wireless networks and power systems provide successful examples of various levels of automation. Advances in computing, communications and control have enabled automation. The need for automation in aviatio...

OBJECTIVES The goal of the study was to improve prediction of longitudinal flight simulator performance by studying cognitive factors that may moderate the influence of chronological age. METHOD We examined age-related change in aviation performance in aircraft pilots in relation to baseline cognitive ability measures and aviation expertise. Participants were aircraft pilots (N = 276) aged 40...

PROBLEM There is concern in the aviation community that pilot schedules can lead to fatigue and increased chance of an aviation accident. Yet despite this concern, there is little empirical analysis showing the relationship between pilot schedules and commercial aviation accidents. This study attempts to demonstrate an empirical relationship between pilot schedules and aviation accidents. MET...

Domestic production of general aviation (GA) aircraft has declined markedly in recent years and an effort is underway to revitalize this industry by opening new markets for aviation, shifting the perception of general aviation as recreation to general aviation as a travel option. This can be achieved only by providing a product that is safer, easier to fly in all weather conditions, and no more...

AIMS To assess the role of drug violations in aviation accidents. DESIGN Case-control analysis. SETTING Commercial aviation in the United States. PARTICIPANTS Aviation employees who were tested for drugs during 1995-2005 under the post-accident testing program (cases, n = 4977) or under the random testing program (controls, n = 1 129 922). MEASUREMENTS Point prevalence of drug violation...

[1] A comprehensive general circulation model (GCM) is used to estimate the climate impact of aviation emissions of black carbon (BC) and sulfate (SO4) aerosols. Aviation BC is found not to exert significant radiative forcing impacts, when BC nucleating efficiencies in line with observations are used. Sulfate emissions from aircraft are found to alter liquid clouds at altitudes below emission (...

in this paper a new problem of three stage disassembly-assembly scheduling is introduced and reviewed. this problem, which was arisen from the aviation industry characteristics, is a generalization of the two stage assembly scheduling problem. products (helicopters) in the aviation industry return to assembler for annual overhaul repair services. in the first stage helicopters are disassembled ...