The Argentine destroyer ARA <i>Espora</i> (D-21) underway during exercise UNITAS III, in 1962. <i>Espora</i> had been commissioned in the United States Navy as USS <i>Dortch</i> (DD-670) from 1943 to 1958. <i>Dortch</i> was loaned to Argentina on 16 August 1961 under the Military Assistance Program and served until 1977 when she was stricken and broken up for scrap.
U.S. Navy
<a rel="nofollow" class="external text" href="http://www.navy.mil/ah_online/department_arch.html">U.S. Navy All Hands magazine</a> <a rel="nofollow" class="external text" href="http://www.navy.mil/ah_online/archpdf/ah196302.pdf">February 1963</a>, p. 5.