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Type Certificate, TCDS, and STC

February 1, 2025
Since the mid-1920s in the USA, the manufacturer of a new type of production aircraft must receive a type certificate issued by the national aviation regulatory authority before the airplane type can enter into service in that nation’s airspace. By 1947, when Beech Aircraft Corporation introduced its new Model 35 Bonanza, that regulatory authority was the Civil Aeronautics Administration (CAA).