| 摘要 |
PROBLEM TO BE SOLVED: To provide a device effectively reducing noises of an airplane caused by running out of an adjusting surface. SOLUTION: On a deformed surface 10 in a side, an eddy current generator 1 is provided so as to extend over at least a part of a deformed deep portion of a lift flap 3. In an advantageous embodiment of this invention, eddy current generators are also provided on a side surface of a wing, and especially on a deformed surface of the inside and/or outside of a flap, and an eddy generated in the wing is controlled by these eddy current generators. Therefore, noises are remarkably, reduced at a relatively small structural cost. |
