The first of three prototypes to be built, an Étendard IVM which had been modified with the new engine and some of the new avionics, made its maiden flight on 28 October 1974. The original intention of the French Navy was to order a total of 100 Super Étendards, however the order placed was for 60 of the new model with options for a further 20; further budget cuts and an escalation in the aircraft's per unit price eventually led to only 71 Super Étendards being purchased. Dassault began making deliveries of the type to the French Navy in June 1978.