A SNCASO SO.9000 <i>Trident</i> in flight. The <i>Trident</i> was a French jet and rocket mixed-power fighter aircraft which first flew on 2 March 1953. Capable of supersonic flight the project was cancelled in July 1957 after only 12 examples had been built.
USN
U.S. Navy Naval Aviation News September 1956 <a rel="nofollow" class="external autonumber" href="https://www.history.navy.mil/research/histories/naval-aviation-history/naval-aviation-news/back-issues/1950/1956/september.html">[1]</a>, p. 21.