Faced with the weakening of his daughter's health due to his opposition, he changed his mind and allowed her to continue with her plans and from that moment he gave her full support.

[1][2] On completion of her training, she obtained her pilot's license on 6 December 1928, flying a single-engined Caudron G.3 biplane, at the Escola Militar de Aeronáutica situated near Sintra.

For the final exams she flew in the presence of her father and of Carlos Bleck who, three years earlier, had been the first non-military pilot to be awarded a licence in Portugal.

Considerable publicity for the venture was achieved, both inside and outside Portugal, and Sá Teixeira became a focal point for the women’s movement, but the donations proved insufficient for purchase of a plane.

[1] Public reaction to her achievement is said to have resulted in a positive step forward in the promotion of equality between men and women in Portugal.