In furtherance of his views, Phillips built the strange-looking machine
which is seen in Fig. 12. It resembled, more than anything else, a huge
Venetian blind; and he adopted this form so as to introduce as many
narrow planes as possible. There were, as a matter of fact, fifty in the
machine, each 22 feet long and only 1-1/2 inch wide. The craft, as can
be seen, was mounted on a light carriage which, having wheels fitted to
it, ran round and round upon a railed track. A steam engine was used as
motive power, driving a two-bladed propeller at the rate of 400
revolutions a minute. The machine was so arranged on its metals that,
although the rear wheels could raise themselves and show whether the
planes exercised a lift, the front one was fixed to its track--thus
preventing the apparatus from leaping into the air, overturning, and
perhaps wrecking itself. Tests with the machine were successful. The
lifting influence of the planes, when the engine drove them forward, was
sufficient to raise the rear wheels from the track; and they did so even
when a weight of 72 lbs., in addition to that of the apparatus, had been
placed upon the carriage. In his main object, then, Phillips succeeded;
and that was to show the lifting power of his planes. But his apparatus
had not the makings of a practical aeroplane. He gained for himself,
nevertheless, a name that has lived and will live. Even to-day, in
discussing the wing-shape of some machine, draughtsmen will speak of the
“Phillips entry.” Other workers did not pin themselves exactly to his
shapes or theories, but these paved the way for a series of further
tests.
Science was forging link by link indeed the chain that would lead to an
ultimate conquest. Sir George Cayley suggested an arched plane; Wenham
devised a machine in which narrow planes should be fitted one above
another; and Phillips laid down the rule for a curve or camber of
special shape, which should exercise most “lift” when thrust through the
air. But still men lacked many things; all the links in the chain were
far from being in their place; and one of the greatest flaws was that no
man, even supposing he was able to build a machine that would fly, had
learned as yet to balance that machine when it was in the air.
CHAPTER III
FIRST FRUITS OF STUDY
The building of large machines--Sir Hiram Maxim’s
costly work--A steam-driven French craft which
flew--Professor Langley’s research in America.
Of the way research next tended, it may be said that it was the first
putting into practice of the theories science had laid down; for now,
having an idea as to the shape of planes, and knowing that these planes
could be made to carry a load through the air, there were engineers who
began to build man-carrying, power-driven machines. In so doing,
however, they may be said to have tried to run before they could walk.
What they did was to provide the world with powerful flying craft before
there were men who could handle them.
Public-domain text, read in full here on John Shaqi.
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