330-PS-245-1:  First Flight of the Navy’s XF5Y-1:   The U.S. Navy’s XP5Y-1 patrol plane is shown airborne over San Diego Bay, California, after a takeoff run of twenty seconds.  The 60-tone experimental Navy seaplane, built by the Consolidated Vultee Aircraft Corporation and powered by four Allison turboprop engines, flew thirty minutes on its initial flight test.  The large flying boat is the first seaplane in this country to be powered by the Navy-pioneered turboprop engines.  It was built for long-range sea search missions and antisubmarine patrols.  Photograph released May 4, 1950.  (8/18/2015).
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