200 Gulfstream I propjets were operated by corporate customers, with a smaller number operated by regional or commuter airlines as well as by government agencies and the military. NASA, the U.S. space agency, flew the Gulfstream I as a passenger transport aircraft and operated seven G-Is. Throughout the 1970s and mid-80s the Ford Motor Company operated a G-1 for their executives in Brazil. The Walt Disney Company operated Gulfstream S.N. 121 with the factory assigned tail number N732G from December of 1963 to October 4, 1967, when it was changed to N234MM. Civilian operators Ptarmigan Airways - Former scheduled passenger airline operator. Wardair Cimber Air - Former scheduled passenger airline operator. Democratic Republic of Congo Malu Aviation Air Provence - Former scheduled passenger airline operator. Gabon Express - Former scheduled passenger airline operator. Aeroel Airways - Former scheduled passenger airline operator. East African Safari Air - Former scheduled passenger airline operator. Kenya Flamingo Airways - Former scheduled passenger airline operator. Seven Air - Former scheduled passenger airline operator. Swedish Civil Aviation Administration (CAA) - Flight inspection (Radio Navigational Aids). Aberdeen Airways - Former scheduled passenger airline operator. Birmingham European Airways - Former scheduled passenger airline operator. Birmingham Executive Airways - Former scheduled passenger airline operator. British Airways - Former scheduled passenger airline feeder service operated via contract by Peregrine Air Services. Capital Airlines - Former scheduled passenger airline operator. Air North - Former scheduled passenger airline operator of the stretched, 37-passenger Gulfstream I-C. Air North, which operated in the northeast U.S., subsequently changed its name to Brockway Air. Air US - Former scheduled passenger airline operator flying several commuter routes from Denver Stapleton International Airport (DEN). Fleet included stretched, 37-passenger Gulfstream I-C aircraft. Bonanza Air Lines - Former scheduled passenger airline operator. Chaparral Airlines - Former scheduled passenger airline operator of the stretched, 37-passenger Gulfstream I-C. Chaparral operated as American Eagle providing passenger feed for the American Airlines hub located at the Dallas/Fort Worth International Airport (DFW). Coleman Air Transport - Former scheduled passenger airline operator which operated a small hub at the Chicago Rockford International Airport (RFD) in Illinois. NASA - Former operator with seven G-I aircraft being used to transport NASA and space program contractor personnel between the civilian space agency's various centers and facilities in the U.S. Phoenix Air Royale Airlines - Former scheduled passenger airline operator with some flights operated via a code-sharing agreement with Continental