A U.S. Navy Lockheed R7V-2 <i>Super Constellation</i> prior to its first flight on 1 September 1954. The R7V-2 was powered by four Pratt &amp; Whitney YT34-P-12A turboprops. Two aircraft were acquired by the Navy (BuNos 131630, 131631), and another two were ordered by the Navy for the U.S. Air Force (YC-121F, BuNos 131660, 131661).
U.S. Navy
Official U.S. Navy photo <a rel="nofollow" class="external text" href="http://www.history.navy.mil/our-collections/photography/numerical-list-of-images/nhhc-series/nh-series/80-G-645000/80-G-645168.html">80-G-645168</a> from the U.S. Navy <a rel="nofollow" class="external text" href="http://www.history.navy.mil">Naval History and Heritage Command</a>