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In page Fokker:

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In the 1920s, Fokker entered its glory years, becoming the world's largest aircraft manufacturer by the late 1920s.[citation needed] Its greatest success was the 1925 F.VIIa/3m trimotor passenger aircraft, which was used by 54 airline companies worldwide and captured 40% of the American market in 1936. It shared the European market with the Junkers all-metal aircraft, but dominated the American market until the arrival of the Ford Trimotor which copied the aerodynamic features of the Fokker F.VII, and Junkers structural concepts.