The present invention provides a grid fin 101 comprising a lattice of a multiplicity of aerodynamic surfaces 102 arranged such that air can flow through the lattice and over the aerodynamic surfaces, each aerodynamic surface having a leading edge 104, wherein a plurality of the leading edges have a planform shape defined by a hyperbolic curve 214. The invention also provides a vehicle or projectile provided with a number of grid fins and methods of designing, modelling and manufacturing grid fins.


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    Title :

    GRID FINS


    Additional title:

    GITTERFLÜGEL
    AILETTES DE GRILLE


    Publication date :

    2020-01-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F42B EXPLOSIVE CHARGES, e.g. FOR BLASTING , Explosive Ladungen, z.B. für Sprengungen / B64C AEROPLANES , Flugzeuge




    Aerodynamic Prediction Methodology for Grid Fins

    Kretzschmar, R. W. / Burkhalter, J. E. / Research and Technology Organization et al. | British Library Conference Proceedings | 1998


    GRID PATTERN EFFECTS ON AERODYNAMIC CHARACTERISTICS OF GRID FINS

    Hiroshima, F. / Tatsumi, K. / International Council of the Aeronautical Sciences | British Library Conference Proceedings | 2004



    CFD Analysis of Grid Fins for Maneuvering Missiles

    DeSpirito, J. / Edge, H. L. / Weinacht, P. et al. | British Library Conference Proceedings | 2000