In recent years, natural laminar flow (NLF) has been proven to be achievable on modern smooth airframe surfaces over a range of cruise flight conditions representative of most current business and commuter aircraft. Published waviness and boundary-layer transition measurements on several modern metal and composite airframes have demonstrated the fact that achievable surface waviness is readily compatible with laminar flow requirements. Currently, the principle challenge to the manufacture of NLF-compatible surfaces is two-dimensional roughness in the form of steps and gaps at structural joints. This paper presents results of recent NASA investigations on manufacturing tolerances for NLF surfaces, including results of a flight experiment. Based on recent research, recommendations are given for conservative manufacturing tolerances for waviness and shaped steps.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Manufacturing Tolerances for Natural Laminar Flow Airframe Surfaces


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    General Aviation Aircraft Meeting and Exposition ; 1985



    Erscheinungsdatum :

    01.04.1985




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Manufacturing tolerances for natural laminar flow airframe surfaces

    Holmes, B. J. / Obara, C. J. / Martin, G. L. et al. | NTRS | 1985


    Step Excrescence Effects for Manufacturing Tolerances on Laminar Flow Wings

    Drake, Aaron / Bender, Anne / Korntheuer, Andrea et al. | AIAA | 2010


    STEP EXCRESCENCE EFFECTS FOR MANUFACTURING TOLERANCES ON LAMINAR FLOW WINGS

    Drake, A. / Bender, A. / Korntheuer, A. et al. | British Library Conference Proceedings | 2010