A Brazilian navy Westland UH-2 <i>Wasp</i> hovering over the fantail of the U.S. Navy guided missile destroyer USS <i>Mahan</i> (DDG-42) during the "UNITAS XVIII" military exercise, in 1977.
USN
U.S. Navy photo from the <a rel="nofollow" class="external text" href="http://www.navysite.de/cruisebooks/ddg42-77/ddg42-77.pdf">USS <i>Mahan</i> (DDG-42) 1977 cruise book</a> available at <a rel="nofollow" class="external text" href="http://navysite.de/cruisebooks/index.html">Navysite.de</a>, p. 53.