Delta Air Transport acquired a 49 percent stake in DAT, and an increasing number of flights were operated on behalf of the Belgian national airline henceforth (also adopting the airline codes of Sabena), using a fleet of British Aerospace 146 aircraft, in favor of which other airliners were gradually phased out. DAT became a member of the European Regional Airlines Association in 1993. In 1996, Sabena bought the remaining KLM stake, thus DAT became a wholly owned Sabena subsidiary, moved its headquarters from Antwerp to Brussels and was re-branded as DAT Belgian Regional Airline, offering low-cost flights. Gradually, the livery of Sabena was
Sabena had a domestic network that was mainly used by businessmen who wanted to be in their coastal villas for the weekend. In 1938, the airline purchased the new Savoia-Marchetti SM.83, a development of the S.M. 73 with a speed of 435 km/h (270 mph), although it flew services at a cruising speed of about 400 km/h (250 mph). At the outbreak of World War II in 1939, Sabena's fleet totalled 18 aircraft. Its mainstay fleet type was the Savoia-Marchetti SM.73 airliner (it had 11 of the type) and the Junkers Ju 52/3m airliner (it had five). Sabena also had just