| 摘要 |
<p>A wing tip device for fixing to the outboard end of a wing (401), the wing defining a wing plane, the wing tip device comprising: an upper wing- like element (404) projecting upwardly with respect to the wing plane and having a trailing edge; and a lower wing- like element (407) fixed with respect to the upper wing- like element and having a root chord (412) and a trailing edge (417), the lower wing- like element root chord intersecting with the upper wing- like element, and the lower wing- like element projecting downwardly from the intersection, wherein the upper wing- like element is larger than the lower wing- like element and the trailing edge of the lower wing- like element is adjacent the trailing edge (416) of the upper wing- like element at the intersection, and wherein an included angle between the upper and lower wing- like elements at the intersection is less than, or equal to, 160 degrees. Also, a wing with the wing tip device; an aircraft with the wing; a method of fitting, or retro - fitting, the wing tip device to a wing; a method of modifying an existing wing tip device; and a method of operating a wing with the wing tip device.</p> |
