Kaltman, LukášNovák, Andrej2025-10-152025978-80-554-2158-2https://drepo.uniza.sk/handle/hdluniza/1291This article addresses the issue of measuring wind parameters onboard ultralight aircraft with the aim of increasing pilot safety by providing relevant information about current weather conditions, specifically wind speed and direction. The theoretical part of the article analyzed the influence of wind on the flight characteristics of ultralight aircraft and examined existing wind monitoring options. Subsequently, an analysis of aircraft accident and incident data involving ultralight aircraft in the Czech Republic and Slovakia between 2019 and 2023 was conducted, revealing that wind negatively influenced 41 % of the analyzed events in the Czech Republic. Based on these findings, three potential solutions were proposed: establishing RADIO service at airfields for sport flying devices, installing windsocks at the ends of runways, and installing onboard electronic flight instrument systems capable of indicating the wind component. Using multi-criteria analysis, the installation of onboard instruments was evaluated as the most suitable option, as it offers the most accurate and up-to-date information directly during flight. In the experimental part, this option was preliminarily verified through two control flights at Sazená airfield using Garmin G3X systems. Comparison of data from the onboard instrument with data from ground meteorological stations showed that while the first flight yielded unrealistic results, the second flight showed better agreement, especially for wind direction, and the data from the onboard instrument corresponded more closely with the pilot's observations and the METAR report. It was concluded that onboard systems represent a promising solution, but more extensive research is necessary for definitive confirmation of their reliability. The article successfully identified a key risk factor, proposed a promising technical solution, and provided a theoretical and methodological basis for further research, thereby contributing to the main goal of increasing the safety of flying ultralight aircraft.otherUltralight aircraftaircraft accidentpilot safetywind measurementsWorking Paperhttps://doi.org/10.26552/pas.Z.2025.1.44