“…Unfortunately, some categories of flight tests have limited application in ultra-light (UL) and remotely piloted aircraft system (RPAS) systems because of weight limitations and the complexity of data collection systems (Bakunowicz and Meyer, 2016; Blachuta et al , 2014; Brzozowski et al , 2017; Majka, 2014; Nowak et al , 2014; Kopecki and Rzucidlo, 2016). Another challenge is the flexibility of systems in terms of signal redundancy, multiple measurement points (Krichen et al , 2017), capability and integration issues (Chudy et al , 2013; Kopecki et al , 2016; Majka, 2017). Moreover, flight test costs are increased by the necessity of complex processing and interpretation of collected data, as well as limitations driven by regulations (Szewczyk et al , 2017; Rzucidlo et al , 2016).…”