**5. Conclusions**

During the research, a methodology was developed to optimize the structure of the parachute harness with the purpose of lightening it. In order to efficiently design the harness for the intended load, an extensive study was conducted to consider the loading of the individual structural elements. A test of the parachute has been performed to reach the required aerodynamic characteristics, which were interpreted as opening shock load. The maximum force obtained from the drop test was directly used to test the harness itself. The static loading test of the harness was designed to gradually increase the load from zero to the maximum load. Different load cases were also incorporated to capture the effect of non-ideal pilot positions during system activation. As a result, the study presents a complete analysis of the separate cases together with a percentage redistribution of the forces during gradual loading. The results evaluation also provided an overview of the sizes of the individual elements. The chest strap is significantly the weakest point, and most of the elements show several times higher strength. Therefore, the intent is to focus on these elements and create a harness with an adapted design. The vision is to create a lightweight harness without affecting the overall load capacity.

**Author Contributions:** Conceptualization, R.P. and R.G.; methodology, R.P. and R.G.; software, I.J.; validation, M.H., I.J. and R.G.; formal analysis, R.G.; investigation, R.G., J.Š. and M.H.; resources, I.J.; data curation, R.G.; writing—original draft preparation, R.G.; writing—review and editing, R.G.; visualization, R.G. and M.H.; supervision, R.P. and I.J.; project administration, R.P.; funding acquisition, R.P.; All authors have read and agreed to the published version of the manuscript.

**Funding:** The work of Robert Grim, Robert Popela and Marek Horák on this paper has been supported by the Technology Agency of Czech Republic grant project no. TN01000029 National Competence Centre for Aeronautics and Space under the National Centres of Competence 1 programme support programme for applied research, experimental development and innovation.

**Data Availability Statement:** The data presented in this study are available on request from the corresponding authors.

**Acknowledgments:** Robert Grim wishes to thank to the BUT Institute of Aerospace Engineering for providing the laboratory and the equipment that was necessary to perform the tests in such range.

**Conflicts of Interest:** The authors declare no conflict of interest.
