Air Zaïre airline was also operating Curtiss C-46s and DC-4s equipment, leased from Aerovias Panama Airways to complement the Sabena-leased aircraft. After the Republic of the Congo gained independence from Belgium in 1960, the Belgian national airline Sabena continued to operate routes in the country. Plans for the formation of a Congolese airline were delayed due to the Congo Crisis; however, in January 1961 a protocol was signed with Sabena for the creation of a limited liability company to be named "Air Congo". On the company was formed, and incorporated on 28 June with Sabena providing technical assistance and personnel. The Congolese
Iberia (airline) airline with a flight Madrid-Lisbon. In 1940 the government gave the monopoly of national air transport to Iberia (this fact changed 6 years later when the government liberalizate the national air traffic for the private airlines), this privilege helped the company to start building as an important international airline, which had not been until then. The airline was nationalised on 30 September 1944 and became part of Instituto Nacional de Industria. The policy of the company was to separate itself from the German orbit to which it had been linked in its first years, and establish relations with the United