Sabena from Seaboard World Airlines, using them mainly on transatlantic routes. In the same period, there were experiments with helicopter passenger service using Sikorsky S-58 aircraft from Brussels to Antwerp, Rotterdam, Eindhoven and the Paris heliport at Issy-les-Moulineaux. 1960 saw the introduction of the Boeing 707-320 intercontinental jet for trans-Atlantic flights to New York. SABENA was mainland Europe's first airline to operate a jet across the Atlantic (BOAC had been flying jet transatlantic services using the de Havilland Comet 4 since 4 October 1958). One of Sabena's aircraft became the first Boeing 707 to crash while in commercial service when Flight
Transair (Canada) scheduled service on Canadian routes followed by the intercontinental version of the Boeing 707 a year later. The Boeing 707-320C was used strictly for charter flights, primarily to international destinations. By 1976 the scheduled route network extended throughout Canada from Toronto in the east to Whitehorse in the west with charter flights being operated to Europe, Mexico, the Caribbean, Hawaii, Florida and other destinations in the U.S. According to the February 1976 edition of the North American Official Airline Guide (OAG), Transair was operating daily scheduled service with either Boeing 737 or Fokker F28 aircraft direct between Toronto (YYZ) and