FIELD: aviation.
SUBSTANCE: invention relates to aircraft engineering, specifically to spreading aerodynamic surfaces of aircraft. Spreading aerodynamic surface comprises joined root and spreading part. Root part is fixed on rotary axis of spreading aerodynamic surface and comprises, installed and connected by axis connecting rod and piston. Connecting root is arranged to turn relative to axis. Piston is configured for back-and-forth movement along rotation axis. Root and spreading parts are connected by links, one of which is central and is connected with connecting rod by axis, and others are located on both sides from it. Links are arranged to turn on axes perpendicular to rotation axis and parallel to chord of aerodynamic surface.
EFFECT: provides for unfolding at high aerodynamic loads in minimal time with minimal layout characteristics.
1 cl, 6 dwg
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