Berlin Tegel Airport and the Mediterranean. Following a major reduction in the airline's scheduled activities at Tempelhof as a result of co-ordinating its flight times with British Airways (rather than operating competitive schedules), this helped increase utilisation of the 727s based at that airport, especially on weekends. In addition to operating a limited number of commercial flights from Tegel prior to its move from Tempelhof on 1 September 1975, Pan Am used it as a diversion airfield. The move from Tempelhof to Tegel resulted in all of Pan Am's Berlin operations being concentrated at the latter. 1976 was the first year since 1972
Detroit Metropolitan Airport the county expanded the airport to become Detroit's primary airport. It renamed the facility Detroit-Wayne Major Airport in 1947, and in the next three years expanded threefold as three more runways were built. In 1949, the airport added runways 3L/21R and 9L/27R, followed by runway 4R/22L in 1950. In 1946–47, most airline traffic moved from the cramped Detroit City Airport (now Coleman Young International Airport) northeast of downtown Detroit to the larger Willow Run Airport over west of the city, and west of Wayne County Airport. Pan-Am (1954) and BOAC (1956) were the first passenger airlines at Detroit-Wayne Major. In