Aërial Navigation: A Popular Treatise on the Growth of Air Craft and on Aëronautical MeteorologyZahm, Albert Francis
History
Aërial Navigation: A Popular Treatise on the Growth of Air Craft and on Aëronautical Meteorology
Zahm, Albert Francis
Aeronautics; Meteorology
The next daring aëroplanist to arouse the world of aviation was Henri
Farman, also a votary of the wheel-mounted flyer. He had been an adept
motorist, therefore accustomed to brisk driving. In the summer of
1907 he received from the Voisin brothers the aëroplane illustrated
in Plate XXIII. With this he made a number of preliminary flights
during the autumn, proving that his aëroplane had suitable stability
and motive power. On October 26th, on the government drill grounds at
Issy-les-Moulineaux he surpassed Santos-Dumont’s record, by flying
771 meters. But this was to him of minor importance; he was preparing
to win the Deutsch-Archdeacon prize of 50,000 francs offered for the
first person who should fly one kilometer over a returning course.
On January 12th, he convoked a committee of the Aëro Club of France
to witness a trial on the morrow. Next morning at ten o’clock, the
weather being calm and clear, his great machine ran a hundred yards
across the course, then rose gracefully into the air, and sailed away
for the 500-meter post. Here, making a wide curve, it rounded safely
and returned, passing the home line in elegant flight, thus winning the
grand prize.
The machine with which Farman achieved his first success, and which
broadly resembles his subsequent triumphal flyers, seems to be a cross
between a Hargrave kite and a Chanute glider, having a Maxim horizontal
steering plane in front. As shown in the figure it was mounted on
four bicycle wheels; was steered up and down by the front plane, and
sidewise by the box rudder seen in the rear. The rider seated between
the large supporting surfaces, and in front of his engine, operated
these rudders separately, by pushing or rotating a pilot wheel, and
abetted the automatic lateral balance by swaying his body. The machine
spread 559 square feet of sustaining surface, weighed 1,100 pounds
and carried a 50-horse-power _Antoinette_ motor actuating a single
two-blade aluminum propeller 6.9 feet in diameter by 3.6 feet pitch,
directly connected to the engine shaft. The stability in mild weather
was so great that Farman, during his first few weeks’ practice, made
over 200 flights, measuring in length from 100 to 500 yards, without
serious mishap. In gusty weather, however, his machine was defective
in steadiness, and unsafe near the ground. This objection was remedied
later by adding flexible wing margins for controlling the lateral
balance.
The age of prize flying was thus fairly ushered in by the feeble but
very important public demonstrations of Santos-Dumont and Henri Farman.
Other public flyers would quickly follow. Delagrange, Blériot, Curtiss
would soon become international figures, not to mention numerous more
recent aviators. They, were men of originality, skill and energy,
who would shortly be in the front line contesting for world laurels,
and winning them gloriously.
PLATE XXIII.
[Illustration: FARMAN BIPLANE, 1908.
(Courtesy W. J. Hammer.)]
[Illustration: FARMAN BIPLANE, 1909.]
Public-domain text, read in full here on John Shaqi.
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