A U.S. Navy Sikorsky SH-3A <i>Sea King</i> from Helicopter Anti-Submarine Squadron HS-4 <i>Black Knights</i> in 1966. HS-4 was assigned to Carrier Anti-Submarine Air Group 55 (CVSG-55) aboard the aircraft carrier USS <i>Yorktown</i> (CVS-10) for a deployment to the Western Pacific and Vietnam from 5 January to 27 July 1966. Four Grumman S-2E <i>Tracker</i> of CVSG-55 are visble overhead.
USN
Official U.S. Navy photograph <a rel="nofollow" class="external autonumber" href="http://navysite.de/cruisebooks/cv10-66/044.htm">[1]</a> available on <a rel="nofollow" class="external text" href="http://navysite.de/cruisebooks/cv10-66/index_004.htm">USS Yorktown (CVS-10) 1966 cruise book</a> available on <a rel="nofollow" class="external text" href="http://navysite.de/cruisebooks/index.html">Navysite.de</a>.