FIELD: aeronautics.
SUBSTANCE: invention relates to the field of aeronautics and concerns propellers with blades for various types of propulsion and aircraft, devices, devices for creating air flow pressure. The propeller includes two support bushings mounted on the central shaft and made with the possibility of attaching one of them to the drive shaft of the power plant. In this case, the central shaft on the left and right sides includes at least two left and two right beams. A blade is installed on each left and corresponding right beam at an equal distance from the central shaft. Each blade includes a helical segment extending in the direction along and with a deviation in a clockwise direction relative to the central shaft. In this case, each helical segment contains three stiffening ribs fixed on the surface of the helical segment in accordance with its generatrix surfaces.
EFFECT: increase in the force of the air flow of the screw with its compact width and reduced material consumption.
5 cl, 4 dwg
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