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
Air Zaïre other funds earned by Sabena in the country. Foreign ownership of the airline was eliminated at the same time, with the Congolese government holding a seventy percent share, the "Institut National Securite Sociale" holding eight percent, and local Congolese concerns holding the remainder. At the time, the fleet comprised two Douglas DC-6s, eight DC-4s, eleven DC-3s, two Curtiss C-46s, three Beech 18s, five Beech Barons, one Piper PA-23 Aztec and one Cessna 310. In 1967 the airline ordered two Sud Aviation Caravelles for delivery in October 1967 and the summer of 1968, and on 12 May 1967 a BAC One