Sabena the Savoia-Marchetti SM.73 airliner. With a speed of 300 km/h (200 mph), it reduced the journey time taken to only four days, and the Sabena service ran on alternate weeks to an Air Afrique service. In Europe, Sabena opened services to Copenhagen and Malmö in 1931 and a route to Berlin was initiated in 1932. The mainstay pre-war airliner that Sabena used in Europe was the successful Junkers Ju 52/3m airliner. The airline's pre-war routes covered almost 6,000 km within Europe. While the Brussels Haren airport was Sabena's main base, the company also operated services from other Belgian airports, and
Sabena that it had to buy jumbo jets for its prestige services, notably New York JFK and as of the mid-seventies, Chicago O'Hare. Sabena purchased only two first generation jumbo jets and it continued to fly the 707 into the late 1970s. In 1973, the Boeing 727s on the European network were replaced by Boeing 737-200s. The Douglas DC-10-30 entered service in 1974. In total, Sabena purchased five of these convertible (Passengers and/or freight) combi aircraft wide-body jets. In 1984 Airbus A310s were introduced on routes that had high passenger density. This aircraft type also introduced a modernisation of the 1973