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
Detroit Metropolitan Airport the first inland airport in the United States certified for jet airliners. Also in 1958, airport management completed the L.C. Smith (South) Terminal and gave the airport its present name. Jet flights (Pan Am and American 707s) began in 1960. Northwest's flights to the Minneapolis-Saint Paul International Airport [MSP] were DTW's only nonstops west beyond Chicago and Milwaukee until 1966, when the remaining passenger airlines at Willow Run moved to Metro Airport. The North Terminal (later renamed the Davey Terminal) opened in 1966 and a third terminal, the Michael Berry International Terminal, opened in 1974. The last of its original