Eight Rolls-Royce RB108 lift engines were installed, each with an average maximum takeoff thrust of 9.83 kN (2,210 lbf).

The Mirage III's Snecma Atar G.2 propulsion engine was replaced with an un-reheated (non-afterburning) Bristol Siddeley Orpheus BOr 3 with a thrust of 21.57 kN (4,850 lbf).

Although airframe damage was relatively light, the Centre D'Essai en Vol test pilot, Jacques Pinier, did not eject and died in the crash.

The aircraft was being evaluated by United States Air Force Major P. E. Neale, as part of a Franco-American information exchange on VTOL programmes.

Once again, the damage was not irreparable, but this time the aircraft was not rebuilt, as flight development of the Mirage IIIV prototype was already underway.