FIELD: transport.
SUBSTANCE: invention relates to aircraft engineering, in particular to arrangement of pulling and lifting propellers of pilotless aircrafts and superlight aeroplanes. Aerodynamic propeller consists of blades (1) connected with bushing (2) fixed on shaft (3). Each blade (1) of propeller has cylindrical root transient portion which is torsion-resilient member. Blades positioning at preset angle is provided by blade (1) pressure center shift relative to axis of its resilient root transient portion in propeller rotation plane. Aerodynamic propeller can contain support rollers for root transient portions when they are elongated. Blades of pulling propeller are located behind rollers. The blades can be sword-shaped at their ends.
EFFECT: reduced weight of power unit and aircraft in the whole, higher efficiency factor of propeller.
3 cl, 3 dwg
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