Shortly after the end of World War II, surplus military aircraft entered the civilian market in large numbers. This triggered an explosion of airlines, often flown by the abundant number of veteran pilots. The Douglas C-47 was a mainstay in many of these airlines and freight companies. Not satisfied with simply transporting cargo, two former Air Corps officers, Fred P. Dollenberg and Raymond W. Baldwin Jr. set up Winged Cargo Inc. with its headquarters at NorthWest Philadelphia Airport. This company utilized gliders to carry extra cargo.
Air Transport and Travel Ltd. (AT&T) was founded by aviation pioneer and newspaper proprietor, George Holt Thomas. He also founded the Aircraft Manufacturing company Limited (Airco) in 1911 and the company produced thousands of aircraft, mostly designed by Geoffrey de Havilland, for the British military. AT&T initially operated relief flights from Folkestone to Ghent using a fleet of former military Airco DH.4A biplanes but after the war entered the growing market for civilian aviation.