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- The Whitehead No.21 was the aircraft that aviation pioneer Gustave Whitehead claimed to have flown near Bridgeport, Connecticut on August 14, 1901. Professional aviation historians and scholars reject claims for the flight. A description and photographs of Whitehead's aircraft appeared in Scientific American in June 1901, stating that the "novel flying machine" had just been completed, and "is now ready for preliminary trials". The flight was reported in the August 18, 1901, issue of the Bridgeport Sunday Herald and reprints or rewrites were published in many other newspapers. Photographs exist showing the aircraft on the ground, but there are no photographs known of the aircraft in flight. The No.21 was a monoplane powered by two engines—one for the wheels during the ground run, the other for driving the propellers in flight. (en)
- O Whitehead No. 21 foi a aeronave com a qual o pioneiro da aviação Gustave Whitehead reivindicou a primazia de ter voado perto de Bridgeport (Connecticut), em 14 de agosto de 1901. (pt)
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- O Whitehead No. 21 foi a aeronave com a qual o pioneiro da aviação Gustave Whitehead reivindicou a primazia de ter voado perto de Bridgeport (Connecticut), em 14 de agosto de 1901. (pt)
- The Whitehead No.21 was the aircraft that aviation pioneer Gustave Whitehead claimed to have flown near Bridgeport, Connecticut on August 14, 1901. Professional aviation historians and scholars reject claims for the flight. A description and photographs of Whitehead's aircraft appeared in Scientific American in June 1901, stating that the "novel flying machine" had just been completed, and "is now ready for preliminary trials". The flight was reported in the August 18, 1901, issue of the Bridgeport Sunday Herald and reprints or rewrites were published in many other newspapers. (en)
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- Whitehead No. 21 (pt)
- Whitehead No. 21 (en)
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