Tapered thickness-chord ratio wing

Details Tapered thickness-chord ratio wing Tapered thickness-chord ratio wing

1984-12-27

1986-09-16

Blix, Trygve M.

Aeronautics and astronautics

Aircraft sustentation

Sustaining airfoils

B64C 310

Patent

active

046117733

ABSTRACT:
A swept wing for jet transports having a thickness-chord length (t/c) ratio that continuously decreases (i.e., tapers) from the wing root to the wing tip 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 chosen 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.

REFERENCES:
patent: 1493928 (1924-05-01), Gallaudet
patent: 1508592 (1924-09-01), Breguet
patent: 1547644 (1925-07-01), Cronstedt
patent: 1792015 (1931-02-01), Herrick
patent: 1890079 (1932-12-01), Focke
patent: 2257260 (1941-09-01), Kartiveli
patent: 2281272 (1942-04-01), Davis
patent: 2441758 (1948-05-01), Garbell
patent: 2498262 (1950-02-01), Garbell
patent: 2628043 (1953-02-01), Montgomery
patent: 2643076 (1953-06-01), Hurel
patent: 2709052 (1955-05-01), Berg
patent: 4240598 (1980-12-01), Espin et al.
Journal of Aircraft, vol. 18, No. 2, Feb. 1981, pp. 121-127, P. A. Henne, "Inverse Transonic Wing Design Method".

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