Soon after the entry to service of the longer range CRJ200, the model proved to be a commercial success as well. According to aerospace publication Flight International, 1999 was a record year in terms of aircraft deliveries by Bombardier. Writing around this time, authors Bijan Vasigh, Reza Taleghani, and Darryl Jenkins declared that "the CRJ program one of the most successful regional aircraft programs in the world". By the end of 2000, perhaps the most significant operators of the CRJ100 included the American airline Comair, German short-haul operator Lufthansa Cityline, and French regional airline Brit Air; of its CRJ200 sibling, key operators by this time included Delta Connection, SkyWest Airlines, and Independence Air.