Search Results - "Helicopters."

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    Helicopters.

    Published 1965
    Book
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    Principles of helicopter engineering by Shapiro, Jacob

    Published 1955
    Book
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    GMA gets 2 new helicopters by Diaz, Jess

    Published in Philippine Star (2008)
    Article
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    Aerodynamics of the helicopter by Gessow, Alfred

    Published 1952
    Book
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