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Article describes the problematics of GNSS systems (Global Navigation Satellite Systems) and its use for creating an approach procedure for airport Nitra JanпїЅkovce. Paper is divided into four parts. First chapter devotes itself to general description of GNSS systems, specifically their history and technical characteristics of three the most widely known satellite navigation systems, including GPS, GLONASS and GALILEO, addicting also to the systems that make GNSS signal of these navigation systems more precise. T...

The transportation is the most significant energy consumer. Energy consumption in European Union is supported by 50% from its own sources. This implies the need of fossil fuel replacement by alternative possibilities. One option is application of renewable inexhaustible and clean resources which hydrogen is. This paper deals with hydrogen technology application in order to power experimental vehicle. Other thing is the safety concerning the process of human пїЅ machine пїЅ environment system with respect to hydrog...

This paper is focused on creation of the tail unit FEM strength analysis of the UAV based on helicopter by advanced CAx tools. To perform the analyses were used advanced information technology tools with high precision. For the strength analysis was used solver NASTRAN as a part of software NX. This analysis has shown us, in which locations of the surface design will be the greatest loads during the flights operations and in which points of attachment of the tail unit together with fuselage will be the greatest st...