Abstract
At present, there is an increasing emphasis on innovation. Manufacturers are forced to constantly improve their products. This also applies to aviation, where is the need for the highest possible cost a energy-efficiency of any propelling device. This study provides a theoretical insight into the possible alternate propelling device for special use through the development of a new special type of aircraft propeller. The main part is a theoretical design of a propeller that would be powered by a stream of compressed air from an external source. The propeller model is created in CAD software with aim on possibility of its utilisation in a special prototypes of aircraft. The last part of this work was the stress analysis of its main component - propeller blade to asses weaknesses in design. Especially focusing on the areas of stress concentration were of high importance. According to results of such simulation was find out, that propeller blade design is suitable for manufacture of model prototype. Here will be used a 3D printer to create individual components and subsequent joining of parts into one assembly. Subsequent testing of the propeller prototype in practice will be helpful of suggestions for further improvements.
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