The research focuses on the development of an Unmanned Aircraft System. For design purposes, a rather new design method called Systems Engineering Approach is used. Development of the whole system takes much time and effort. This paper contains a concise description of the research on the preliminary development phase of Unmanned Aircraft System air vehicle. The method was first introduced by NASA and later developed by authors of books on aircraft design used for information purposes for design and are mentioned in references. The obtained results are rather realistic and promising for further design process. The method is simple and understandable, and it should be used more often to make it more steady and reliable.
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 A. Urbahs and V. Žavtkēvičs “Remotely Piloted Aircraft Route Optimization When Performing Oil Pollution Monitoring of the Sea Aquatorium” Aviation vol. 21 no. 2 pp. 70–74 Apr. 2017. https://doi.org/10.3846/16487788.2017.1344139
 A. Urbahs and I. Jonaite “Features of the Use of Unmanned Aerial Vehicles for Agriculture Applications” Aviation vol. 17 no. 4 pp. 170–175 Dec. 2013. https://doi.org/10.3846/16487788.2013.861224
 U.S. Department of Transportation Federal Aviation Administration Advisory Circular: Aircraft Weight and Balance Control Washington D.C. 2005. [Online]. Available: https://www.faa.gov/documentLibrary/media/Advisory_Circular/AC120-27E.pdf
 A. Urbahs and A. Barovs “Peculiarities of Calculating the Main Performance Characteristics of the Remotely Piloted “LARIDAE” Aircraft Transport Means” in Proceedings of the International Conference 2015 pp. 474–477.
 M. C. Y. Niu Composite Airframe Structures 5th ed. Hong Kong Conmilit Press 2005.
 M. P. Groover Fundamentals of Modern Manufacturing: Materials Processes and Systems 4th ed. John Wiley & Sons 2010.
 M. Sadraey Aircraft Design. John Wiley & Sons 2013.
 J. Roskam Airplane Design vol. I. DAR Corporation 2005.
 L. J. Bertin and R. M. Cummings Aerodynamics for Engineers 5th ed. Pearson / Prentice Hall 2009.
 B. S. Blanchard and W. J. Fabrycky Systems Engineering and Analysis 4th ed. Prentice Hall 2006.
 C. Rao H. Tsai and T. Ray “Aircraft Configuration Design Using a Multidisciplinary Optimization Approach” in 42nd AIAA Aerospace Sciences Meeting and Exhibit Reno NV January 5–8 2004 AIAA-2004-536. https://doi.org/10.2514/6.2004-536
 J. Roskam Lessons Learned in Aircraft Design. DAR Corporation 2007.
 E. C. T. Lan and J. Roskam Airplane Aerodynamics and Performance. DAR Corporation 2003.
 H. Eschenauer J. Koski and A. Osyczka Eds. Multicriteria Design Optimization: Procedures and Applications. Springer 1990. https://doi.org/10.1007/978-3-642-48697-5
 I. Kroo S. Altus R. Braun P. Gage and I. Sobieski “Multidisciplinary Optimization Methods for Aircraft Preliminary Design” 5th Symposium on Multidisciplinary Analysis and Optimization Sep. 1994 https://doi.org/10.2514/6.1994-4325
 M. Sadraey Aircraft Performance Analysis. VDM Verlag Dr. Müller 2009.