| 摘要 |
A swept wing (10) for jet transports having a thickness-chord length (t/c) ratio that continuously decreases (i.e., tapers from the wing root (14) to the wing tip (16) is disclosed. The tapered t/c ratio wing has reduced weight and improved overall efficiency when compared to conventional, constant t/c ratio wings. While the t/c ratio of the wing tapers, the combined structural and skin strength of the wing remains adequate to handle bending loads imposed by lift and engine weight. In this regard, the cross-sectional thickness of the midspan region of the wing is choosen such that the wing skin thickness can be reduced to the minimum allowable for the skin material. Also, the cross-sectional thickness of the outboard region of the wing is decreased, resulting in decreased drag and weight in this region. Further, the camber of the outboard portion of the wing is increased (as compared to the camber of a constant t/c ratio wing to prevent the unsweeping of spanwise oriented isobars (54). |
