The Challenger 600 series of aircraft originated in 1976, from the LearStar 600, a concept that the founder of Learjet, Bill Lear, presented to Canadair. Canadair was the original builder of the Challenger series of aircraft before Bombardier purchased Canadair.
The Challenger 604 is one of the best-selling models of the Challenger series of aircraft. It is powered by GE CF34-3B engines, with 3 percent lower fuel consumption than the 601- 3A engines installed on the previous CL601-3A. The 604 has a maximum range of 4,000 nautical miles and features the Collins Pro Line 4 avionics system. It has an optional cabin arrangement that provides 19 extra inches of cabin length and two more cabin windows, while reducing baggage space by 7 cubic feet.
The 604 made its first flight on September 18, 1994.
