FIELD: space and aeronautics.
SUBSTANCE: invention relates to elongated aerodynamic element and covers wing aircraft rotary-wing aircraft or blades. The aerodynamic element (1) is adapted to the torsional deformation. Elongated aerodynamic element (1) is fitted with an aerodynamic upper surface (2) and lower aerodynamic surface (3). The upper airfoil (2) is continuous, and the lower airfoil (3) includes a longitudinal groove (b), extending in the direction of scale and near the leading edge (4)of the aerodynamic elements (1). Inside aerodynamic elements (1) provide executive resources that can cause relative sliding between the edges of the groove (6), relative to each other. Internal executive resources can be piezoelectric, hydraulic, mechanical.
EFFECT: adjustable torsion rigidity.
12 cl, 9 dwg
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