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Some first of Boeing 727

First certificated commercial trijet

First commercial airplane to surpass 1,000 sales mark in civil use

First "Quick change" convertible passenger / cargo airplane

First jet to operate short runways (5,000 ft.)

First jet to operate from the airport LaPaz, Bolivia at an elevation at 13,358 ft.

First jet certified by the FAA to operate gravel runways

First large commercial airplane to carry its own airstairs and APU

First airplane to use "jet mixing" principle for quieter operation

First airplane certifiead to FAA noise rules (FAR 36)