This paper presents an experimental analysis of the strength of a composite drone arm. The use of composite materials is widespread in the aerospace industry, especially in designing and manufacturing unmanned aerial vehicles (UAVs). The main reason is the need to reduce the UAV’s mass without damaging the structure. Due to their characteristics, composite materials enable the structure to be lighter than it would be if it were made of conventional materials (duralumin, etc.), while at the same time the strength parameters are adequate. Experimental analysis is usually used when it is necessary to check and verify values previously obtained by analytical and numerical methods. In this paper, we first perform an experimental analysis to find the maximum value of force at which cracks will occur. The value of the obtained force will help us in further numerical analyses to optimize the structure.