330-PS-3057-3 (USN 708745):   Navy’s Hydro-Sky Experiment., November 17, 1952.  The small-scale model of the Douglas D-55881 Navy “Skyrocket” was one of the first designs investigated by the National Advisory Committee for the aeronautics for hydro-ski application.  This was not with the intention of applying hydro-skies to the flight craft, but was chosen merely as a typical high-speed jet fighter design.   (5/5/2015).
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