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a major role, Aviation became an instant obsession. The show was a catalyst that would lead him to build his own plane and start his own airplane company, Pacific Aero Products, in 1916. This company evolved into the worldwide known Boeing Co.

FACTS AND FIGURES

Table 1 displays the impressive progress of the solution of the heavier-than-air flight issue (FlightGlobal, 1909b). All achievements were recorded by Aéro-Club de France. Although Wilbur Wright had settled down in France in 1907, he was only able to deliver a remarkable performance in late 1908, after he incorporated the European technology. The brothers did not take part in the trophy organized by the Scientific American in the U.S for a 1-km flight journey. Curtiss won the competition with its “June Bug” biplane.

Figure 17 is a diagram illustrating the relationship between weight-to-wing area and weight-to-power ratio for several single-engine airplanes. The Wright brothers continuously improved the weight-to-power ratio of their machines. However, the graphic shows that the Flyer figures are higher than any single-engine piston-powered aircraft of all time. This explains the need for a catapult-launching system or suitable wind conditions to takeoff for the later versions; the first two ones can be considered an underpowered glider. Even considering the PIK-20E motor-glider, fitted with a retractable Rotax 505 engine, we have obtained values quite different for that from a flyer. For this aircraft, weight-to-wing area and weight-to power ratios are 47 and 10.9, respectively (Wikipedia, 2011).

France, the pioneer of world Aviation, led the way for the Allied aviation in World War I. In 1914, the French Aviation industry was the most advanced in the world, and its contribution was crucial to the establishment and maintenance of air power to confront that of the Central Powers. In the early years of the war, France supplied aircraft and engines to her allies. French as forerunner of the quest for technology can be credited to the open-source ambience, which prevailed in the aeronautical community before the Great War. The increase in aircraft production is naturally due to the shadow of the war to come.

In 1911, the tradition of military air shows was started, and not only was this idea taken up by other nations, but it proved a great stimulus for the Aviation industry. The industrial aircraft production surges and the figures are really impressive: 1,350 aircraft in 1911, 1,425 in 1912 and 1,294 in 1913 (Angelucci, 2001).

Table 1. Progressive records (FlightGlobal, 1909b).
Aviator Place Date Distance/Time
Santos-Dumont Bagatelle August 22, 1906 Few seconds
Santos-Dumont Bagatelle September 14, 1906 7-8m
Santos-Dumont Bagatelle October 23, 1906 50m
Santos-Dumont Bagatelle November 12, 1906 220m
Hemy Farman Issy October 26, 1907 771m
Hemy Farman Issy January 13, 1908 1,500
Henry Farman Issy March 21, 1908 2,004m
Delagrange Issy April 10, 1908 2,500m
Delagrange Issy April 11, 1908 3,925m
Delagrange Rome May 27, 1908 5 km
Delagrange Rome May 27, 1908 9 km
Delagrange Rome May 30, 1908 12,5 km
Delagrange Milan June 22, 1908 17 km
Henry Farman Gand July 6, 1908 19,7 km
Delagrange Issy September 6, 1908 24,727 km
Orville Wright Fort Meyer September 9, 1908 1h 2 min 30s
Orville Wright Fort Meyer September 10, 1908 1h 5 min 57s
Orville Wright Fort Meyer September 11, 1908 1h 10 min 50s
Orville Wright Fort Meyer September 12, 1908 1h 15 min 20s
Wilbur Wright Auvours September 21, 1908 1h 31 min 25s
Wilbur Wright LeMans December 18, 19081 1h 54min 22s
Figure 17. Comparing graph containing two important parameters for single-engine piston-powered airplanes.

Germany's achievements in setting up and developing the framework needed for aerial warfare can be considered as impressive, At the beginning of the war, German airplanes were slow and unarmed, intended only to be used for aerial observation and reconnaissance of ground forces. After changing the way aircraft could be usefulness in a war scenario, the armed forces were reorganized to efficiently incorporate the new weapon, The aircraft production in 1912 topped 136 units, which is a considerable increase from just 24 built in 1911. In 1913, Germany aircraft production rose to 446. A huge

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J. Aerosp. Technol. Manag., São José dos Campos, Vol.4, No 3, pp. 355-379, Jul.-Sep., 2012