U.S. Marine Corps photo by National Archives Photo (USMC) 127-N-A322389/Released 170517-M-ZZ999-001.JPG
May 17, 2017
Inventor Igor Sikorsky, the father of American helicopters, visits HMX-1 at Marine Corps Air Station Quantico, Virginia. In the background is an HO3S-1 helicopter, one of the first two “Whirlybirds” assigned to the U. S. Marine Corps.
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