using the first Mystère 20 prototype, having flown at an average recorded speed of 859 km/h over a distance of 1000 km. Deliveries of the type soon commenced to Pan American's outfitting facility at Burbank Airport, California. All non-American aircraft were fitted out prior to delivery at Bordeaux-Merignac. During 1966, the company redesignated the American-delivered aircraft as the Fan Jet Falcon; this was subsequently shortened to the Falcon 20. During 1967, Pan Am Business Jets Division decided to increase their firm orders for the type to 160 Falcon 20s. Military orders for the type were quickly received from Australia, the U.S., and Canada, in addition those placed by France. Further development A number of Falcon 20s that had been originally powered by CF700 engines were later re-engined with Garrett TFE731 engines under AMD-BA Service Bulletin No. 731. To distinguish these re-engined aircraft from those still using the original powerplant, they were redesignated with a "-5" suffix inserted after the model number. Volpar Inc. was involved in a program to re-engine the Falcon 20 with the Pratt & Whitney Canada PW305 engines; however, work on the program was abandoned before a Federal Aviation Administration (FAA) STC was awarded. An improved model of the aircraft, designated the Falcon 200, was developed, which featured more advanced jet engines and other major improvements to increase range, capacity, and comfort. The Falcon 200, along with the Falcon 20G and HU-25 models, were powered by a pair of Garrett ATF3 engines. According to the magazine Flying, the Falcon 200 variant was more comparable to the newer Falcon 50 trijet than the original Falcon 20 model. Due to its popularity, Dassault studied and worked upon various variants and extensive derivatives of the Falcon 20. Later-built developments of the type include the smaller Falcon 10; the larger 30-seat Falcon 30 with a larger fuselage cross section, which was built and test flown, but did not proceed to production; and the Falcon 50, an improved three-engined development. The Falcon 20 proved to be so popular that production was not terminated until 1988, when it had been superseded by more advanced developments of the Falcon family. A total of 473 Falcon 20s and 35 Falcon 200s had been constructed by the end of the type's production. During 2013, the FAA modified 14 CFR part 91 rules to prohibit the operation of jets weighing 75,000 pounds or less that were not