330-PS-683 (USN 707952a):   Hiller “360” constructed by Hiller Helicopters shown hovering above the company’s Palo Alto plant.  The U.S. Bureau of Aeronautics has disclosed the awarding of a contract for an initial quantity of Hiller “360’s” to be used as basic helicopter trainers.  Photograph released September 25, 1950.  (7/14/2015).
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/127906254@N06">National Museum of the U.S. Navy</a>
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