A U.S. Navy Lockheed P-3A <i>Orion</i> of Patrol Squadron 16 (VP-16) flies over the Brazilian aircraft carrier NAeL <i>Minas Gerais</i> (A-11) and a destroyer during the UNITAS XI exercise, in 1970.
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/ah197101.pdf">January 1971</a>, p. 15.