The achievement of 70 percent laminar flow using modest boundary layer suction on the wings, empennage, nacelles, and struts of long-range LFC transports, combined with larger wing spans and lower span loadings, could make possible an unrefuelled range halfway around the world up to near sonic cruise speeds with large payloads. It is shown that supercritical LFC airfoils with undercut front and rear lower surfaces, an upper surface static pressure coefficient distribution with an extensive low supersonic flat rooftop, a far upstream supersonic pressure minimum, and a steep subsonic rear pressure rise with suction or a slotted cruise flap could alleviate sweep-induced crossflow and attachment-line boundary-layer instability. Wing-mounted superfans can reduce fuel consumption and engine tone noise.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Design philosophy of long range LFC transports with advanced supercritical LFC airfoils


    Beteiligte:

    Kongress:

    ICAS Congress ; 1988 ; Jerusalem, Israel


    Erscheinungsdatum :

    01.01.1988


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch





    Development and validation of airfoils for global range transports

    Tilmann, Carl / Brandt, Lee / Russell, Justin et al. | AIAA | 2000


    Development and Validation of Airfoils for Global Range Transports

    C. P. Tilmann / L. B. Brandt / J. W. Russell et al. | NTIS | 2000