Patent ID: 6863245

Claim:
An aerodynamic profile having a forward profile area as well as a rearward profile area which is situated in a downward current and is bounded by a pressure-side covering skin as well as a suction-side covering skin, the pressure-side covering skin and the suction-side covering skin converging at the rearward profile area in a trailing profile edge, comprising: a flap swivellably disposed in the rearward profile area on an underside of the pressure-side covering skin such that, in an inoperative condition, the flap, pointing in a flow direction, rests against a contour of the pressure-side covering skin and, in a deflected condition, encloses an angle with the pressure-side covering skin, and an airtight hinge connection integrated in the flap so that, on a side of the flap protected from wind, a turbulence system which improves flow conditions is formed wherein the flap is made of a laminated folded-together prepreg material and an airtight loop area is formed along a fold in the material.