From 1975 a new thing is starting. It consists of an increase of the proportion of engineering students called "civilians" in opposition to the "officials" (civil servants) engineering students. ENAC is becoming a major player in the training for aerospace industry (civilian personnel), while its primary goal was only the training of officials for "direction générale de l'aviation civile". It is true that the existence of students for the private sector is not new at the university : it was in 1956 that are trained the first of them. At the end of 1950s, however, this recruitment affects only a minority of students. It is primarily done to compensate the disadvantage which consists of the highly different number of students to work in the administration and to prevent the size of successive promotions with a too great difference. However, this second source tends to become more and more important, to finally become the first one. This results in an revision of the teachings. ENAC engineering education, particularly that of the specialty called "facilities" - it focuses on electronics - seduce the industrial sectors of electronics and information technology. Without having particularly desired, the university has progressively the role of a National University of Engineers.