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 aëroplane has two superposed main surfaces 6 feet apart
with a spread of 40 feet, and a distance of 6½ feet from front
to rear. The area of this double supporting surface is about
500 square feet. A horizontal rudder of two superposed plane
surfaces about 15 feet long and 3 feet wide is placed in front
of the main surfaces. Behind the main planes is a vertical
rudder formed of two surfaces trussed together about 5½ feet
long and one foot wide. The motor, which was designed by the
Wright brothers, has four cylinders and is water cooled. It
develops about 25 horse power at 1,400 r. p. m. There are two
wooden propellers 8½ feet in diameter which are designed to run
at about 400 r. p. m. The machine is supported on two runners
and weighs about 800 pounds.”
On the whole the demonstrations at Fort Myer in 1909 did not greatly
enhance the prestige of aviation. They were attended by too many delays
and accidents, and too much waiting for ideal weather. As a consequence
the guardians of the national purse were not clamoring for an aërial
flotilla. Some few, no doubt, understood that the aëroplane could
brave more than a zephyr with safety; but the general public accepted
the demonstrations at their face value. The unthinking multitude did
not realize that with sufficient incentive, such as war presents,
the Wright brothers could repeat those brilliant flights, of the end
of July, under more severe weather conditions. Fortunately, events
were transpiring elsewhere which vastly increased the popular fame
and valuation of the new art. This refers more particularly to those
startling achievements in aviation abroad which were largely stimulated
by competition and prizes.
Public-domain text, read in full here on John Shaqi.
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