FIELD: aviation.
SUBSTANCE: invention relates to aircraft engineering, particularly, to design of propellers. Propeller, for example, helicopter comprises blades, resting on parts of two universal self-centering systems, in which external base coincide, and inner base are located in parallel on one axis of rotation. On external and internal bases are fixed at least three rotation rollers on each. Rollers of external and internal bases are interconnected by closed flexible cable, belt or chain. Blades material 8 rests on cable 7, which together with outer base 2 and inner bases 1 and 10 receive bulk of loads during helicopter lifting. Material 8 can be, for example, tarpaulin or rubber. When using chain rotation rollers are replaced with sprockets. Together with rotation axis 9 universal self-centering transport system form rigid triangle.
EFFECT: reduced loads on materials of which blades are made.
1 cl, 4 dwg
