The French Nord 1500-01 <i>Griffon I</i> in flight. The <i>Griffon</i> was an experimental ramjet-powered fighter aircraft designed and built by French state-owned aircraft manufacturer Nord Aviation. It was part of a series of competing programs to fill a French air force specification for a Mach 2 fighter.
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. 23.