Sabena airliners which were augmented and later replaced by Douglas DC-6Bs. The DC-4s also restarted the airline's traditional route to the Belgian Congo. Sabena was the first airline to introduce transatlantic schedules from the north of England, when one of its DC-6Bs inaugurated the Brussels-Manchester-New York route on 28 October 1953. The Convair 240 was introduced in 1949 to partially replace the DC-3s that until then had flown most European services. As of 1956, improved Convair 440 "Metropolitan" twins began replacing the Convair 240 twins and were used successfully well into the 1960s between European regional destinations. In 1957, the long-range
Indigo Airlines (American airline) Matt Andersson also reviewed several of Indigo's broader aerospace, consumer and public policy initiatives in his book "The New Airline Code" published in 2005. Indigo Airlines (American airline) Indigo Airlines was an American airline headquartered in Chicago, Illinois. It was the first business jet airline, founded in 1997 by Matt Andersson, John N. Fenton and Tom Svrcek. Its headquarters were first located in Chicago's Near North Side, and later at Chicago Midway Airport. It was the first airline to allow individual travelers to reserve and purchase a single seat on a traditional corporate or business jet, which then flew a