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 flight must have been very graceful and dignified, for it
elicited commendation even from the squad of reporters present, men
who customarily recorded such events with uncontrollable mirth and
ridicule. Dr. Langley merely remarks: “This was the first time in
history, so far as I know, that a successful flight of a mechanically
sustained flying machine was seen in public.” It was also the first
successful gasoline[22] aëroplane, and the forerunner of the host
of flyers presently to spring up in all parts of the world. Its
flight though very brief, owing to a surcharge of gasoline, was so
satisfactory in all its dynamic features, that it seemed to justify an
immediate launching of the one-man machine, with which like maneuvers
were anticipated. As will appear in the sequel this prospect of fair
sailing was beset with unsuspected shoals.
We have now traced the growth of the aëroplane from its earliest
conception to the present time, as exemplified by working models. First
came the parachute of Da Vinci and others, whose sole function was
to carry a weight softly to earth, with no provision for steadiness
of motion, or control of direction. Then, in the beginning of the
nineteenth century, arrived the gliders adjusted for steadiness,
equilibrium and a predetermined slanting course in the air; beautiful
passive birds, actuated by gravity, but riderless and awaiting the
advent of artificial motive power. Then suddenly appeared Mr. Henson’s
wonderful _project_; a large man-carrying aëroplane, provided with
a motor, propellers, rudders, wheels for launching and landing—an
impossible scheme for that day, but destined to be realized in
the course of two generations. Henson’s idea was doubtless the
most prolific in the history of aviation. After this followed the
numerous instructive models, actuated by twisted rubber, steam,
gasoline, compressed air—economic contrivances for ascertaining the
secrets of propulsion, equilibrium and control, of the prospective
man-flyer. These may be said to have demonstrated the practicability
of man-flight, though many contemporaneous and allied experiments, to
be noticed presently, all contributed to the triumphs subsequently
achieved by the race of sanguine, daring and tireless inventors.
[Illustration: FIG. 36.—LAUNOY AND BIENVENU’S HELICOPTER, 1784.]
In this brief outline, the two other main types of flyers, the
orthopters and helicopters, have been omitted. The orthopters, or wing
flapping machines, have been very numerous, but have not yet approached
practical success in use. Though a man-carrying orthopter has not yet
been produced, an elegant pigeon-like model operated by rubber has been
made by Pichancourt, which flies and balances nicely. The helicopters,
or direct-lifting screws, have more than once raised their weight and
that of the helicoptrist, or navigator. These latter, therefore, seem
to be of sufficient interest to merit a short historical review.
Public-domain text, read in full here on John Shaqi.
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