Photo #: 80-G-420949
Sikorski HO3S-1 helicopter,
of Helicopter Utility Squadron One (HU-1)
On board USS Philippine Sea (CV-47) during operations off Korea, circa 19 October 1950. Crewman is backing off vacuum prior to starting the helicopter's engine.
Note aircraft carrier in the left distance.
Official U.S. Navy Photograph, now in the collections of the National Archives.
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27 October 1999