Ștefan Protopopescu
…the School for Military Engineer Officers in Bucharest, receiving the rank of Sublocotenent. Attracted by aviation, he started pilot training at the flight school from Chitila together with Lt. Stelian Boiangiu, Slt. Nicolae Druțu and Slt. Gheorghe Negrescu. He graduated on 9 July 1911, receiving the no. 1 pilot license in…