| 摘要 |
The invention relates to a high-lift system for an aircraft, comprising a lift flap (4) disposed on an airfoil (2), said lift flap being coupled to the airfoil (2) and designed to be displaceable relative to the airfoil (2) between a retracted position and at least one extended position relative to the airfoil (2). The lift flap (4) contacts the airfoil (2) in the retracted position and forms an air gap to the airfoil (2) in the extended position. The lift flap (4) comprises at least one region (16) aligned to the rear edge thereof, having a variable curvature extending toward the airfoil (2) in an extended position of the lift flap (4). A gap can thereby be formed to the airfoil, wherein said gap aerodynamically sufficiently tapers off in the downstream direction, thereby increasing the efficiency of the high-lift system, while no limitations occur during cruising flight. |
