Keywords: Sikorsky SH-3A Sea Kings of HS-4 in flight c1965.jpg Nine Sikorsky SH-3A Sea King from Helicopter Anti-Submarine Squadron 4 HS-4 Black Knights on flight HS-4 was assigned to Carrier Anti-Submarine Air Group 55 CVSG-55 aboard the aircraft carrier USS Yorktown CVS-10 for a deployment to the Western Pacific and Vietnam from 22 October 1964 to 17 May 1965 U S Navy photo http //www navysite de/cruisebooks/cv10-64/124 htm from the http //www navysite de/cruisebooks/cv10-64/index_004 htm USS Yorktown CVS-10 1964-1965 cruise book available at http //navysite de/cruisebooks/index html Navysite de ca 1964 U S Navy PD-USGov-Military-Navy SH-3A Sea King Helicopter Anti-Submarine Squadron 4 United States Navy |