A British Avro 707A experimental aircraft (s/n WD280) in flight. Five 707s were built to test the tailess thick delta wing configuration.
USN
circa 1951 <div style="display: none;">date QS:P,+1951-00-00T00:00:00Z/9,P1480,Q5727902</div>
U.S. Navy Naval Aviation News February 1952 <a rel="nofollow" class="external autonumber" href="http://www.history.navy.mil/nan/backissues/1950s/1952/Feb52.pdf">[1]</a>, p. 20.