British Caledonian in the 1970s 31 March 1973 - with the BR airline designator it had inherited from BUA at the time of its formation. This resulted in exclusive use of the BR designator as a prefix for all BCal flight numbers. In 1973, BCal also inaugurated its fourth scheduled domestic trunk route between London Gatwick and Manchester. The new service was contracted to British Island Airways (BIA), BUIA's successor, which operated two daily return trips using its Handley Page Dart Herald turboprops. On 20 March 1974, BCal switched its Gatwick—Paris services to the then brand-new Charles de Gaulle Airport in the northern Paris suburb
Teresina Airport Teresina Airport Teresina–Senador Petrônio Portella Airport is the airport serving Teresina, Brazil. Since December 22, 1999 it is named after Petrônio Portella Nunes (1925-1980) a former Mayor of Teresina, Governor of Piauí, Senator and Minister of Justice who had a key role in preparing the end of the Brazilian military government. It is operated by Infraero. The airport was opened on September 30, 1967 and since December 23, 1974 it is operated by Infraero. The airport underwent major renovations between 1998 and 2001, including the passenger terminal, runway and the construction of a new control tower. The airport is located