This VTOL proof of concept test bed was the most spectacular “aircraft” at the 22e Salon International d’Aéronautique (1957). The two existing “Atar Volants” prototypes were present: the remote controlled C400 P1 as a static exhibit and the ejection seat-equipped P2 as a flier. This crude thing was piloted by Auguste Morel, the same test pilot who took the P2 on its first flight just a few days before in May 14, 1957.
Candid Kodachrome photo taken by Nicholas Gauthier. Very appropriate that French flag there; those were glorious times for French aviation.