Patent ID: 8657236
Filing Date: 2014-02-25
Classification: B64C

Abstract:
1. An aircraft comprising: a fuselage; and a wing comprising a high-lift system which includes at least one high-lift flap extending in a lengthwise direction along the wing laterally adjacent to the fuselage, wherein the at least one high-lift flap includes leading and trailing edges defining a chord line therebetween, an outboard end facing away from the fuselage, and an inboard end facing toward the fuselage, wherein the flap defines a an upper lift surface and a lower pressure surface between the leading and trailing edges, thereof, the upper lift and lower pressure surfaces defining respective upper and lower profile edges at each of the outboard and inboard ends of the flap, respectively; wherein the at least one high-lift flap includes an aerodynamic seal for reduction of noise aerodynamically generated by the at least one high-lift flap of the aircraft, wherein the aerodynamic seal comprises upper and lower planar perforated blade seal strip elements conforming to the upper lift and lower pressure surfaces of the high lift device, respectively, wherein the upper and lower blade seal strip elements outwardly protrude from the upper and lower profile edges, respectively, at each of the outboard and inboard ends of the flap so as to be separated from one another by a thickness dimension of the at least one high-lift flap, and wherein each of the upper and lower seal strip surfaces extend a predetermined distance between the leading and tailing edges in a direction of the chord line thereof.