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  • Cruising Helmsman

    LETTER OF THE MONTH

    Jan 23, 2020 2 minutes
    KIM KLAKA

    FOIL ME ONCE

    Hi Phil,

    Loved the foil article, but Kim said (page 62) that, “there is an almost inescapable consequence of creating lift: you generate drag”.

    Creating lift always involves drag. Ask Newton.

    Wish he was right, I could build myself a perpetual motion machine!

    Regards

    DOUG PARSONS

    Kim Klaka replies:

    Is induced drag

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