aeroplanes and dirigibles of war-第5章
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value as a military unit in its particular field of operations。
CHAPTER III
GERMANY'S RISE TO MILITARY AIRSHIP SUPREMACY
Two incidents in the history of aviation stand out with
exceptional prominence。 The one is the evolution of the Zeppelin
airshipa story teeming with romance and affording striking and
illuminating glimpses of dogged perseverance; grim determination
in the face of repeated disasters; and the blind courageous faith
of the inventor in the creation of his own brain。 The second is
the remarkable growth of Germany's military airship organisation;
which has been so rapid and complete as to enable her to assume
supremacy in this field; and that within the short span of a
single decade。
The Zeppelin has always aroused the world's attention; although
this interest has fluctuated。 Regarded at first as a wonderful
achievement of genius; afterwards as a freak; then as the ready
butt for universal ridicule; and finally with awe; if not with
absolute terrorsuch in brief is the history of this craft of
the air。
Count von Zeppelin can scarcely be regarded as an ordinary man。
He took up the subject of flight at an age which the majority of
individuals regard as the opportune moment for retirement from
activity; and; knowing nothing about mechanical engineering; he
concentrated his energies upon the study of this science to
enable him to master the difficulties of a mechanical character
incidental to the realisation of his grand idea。 His energy and
indomitable perseverance are equalled by his ardent patriotism;
because; although the Fatherland discounted his idea when other
Powers were ready to consider it; and indeed made him tempting
offers for the acquisition of his handiwork; he stoutly declined
all such solicitations; declaring that his invention; if such it
may be termed; was for his own country and none other。
Count von Zeppelin developed his line of study and thought for
one reason only。 As an old campaigner and a student of military
affairs he realised the shortcomings of the existing methods of
scouting and reconnoitring。 He appreciated more than any other
man of the day perhaps; that if the commander…in…chief of an army
were provided with facilities for gazing down upon the scene of
operations; and were able to take advantage of all the
information accruing to the man above who sees all; he would
hold a superior position; and be able to dispose his forces and
to arrange his plan of campaign to the most decisive advantage。
In other words; Zeppelin conceived and developed his airship for
one field of application and that alone…military operations。
Although it has achieved certain successes in other directions
these have been subsidiary to the primary intention; and have
merely served to emphasise its military value。
Von Zeppelin was handicapped in his line of thought and
investigation from the very first。 He dreamed big things upon a
big scale。 The colossal always makes a peculiar and irresistible
appeal to the Teutonic nature。 So he contemplated the perfection
of a big dirigible; eclipsing in every respect anything ever
attempted or likely to be attempted by rival countries。
Unfortunately; the realisation of the 〃colossal〃 entails an
equally colossal financial reserve; and the creator of this form
of airship for years suffered from financial cramp in its worst
manifestation。 Probably it was to the benefit of the world at
large that Fortune played him such sorry tricks。 It retarded the
growth of German ambitions in one direction very effectively。
As is well known Zeppelin evolved what may be termed an
individual line of thought in connection with his airship
activities。 He adopted what is known as the indeformable
airship: that is to say the rigid; as opposed to the semi…rigid
and flexible craft。 As a result of patient experiment and
continued researches he came to the conclusion that a huge outer
envelope taking the form of a polygonal cylinder with
hemispherical ends; constructed upon substantial lines with a
metallic skeleton encased within an impermeable skin; and charged
with a number of smaller balloon…shaped vessels containing the
lifting agenthydrogen gaswould fulfil his requirements to the
greatest advantage。 Model after model was built upon these
lines。 Each was subjected to searching tests with the invariable
result attending such work with models。 Some fulfilled the
expectations of the inventor; others resolutely declined to
illustrate his reasonings in any direction。
The inevitable happened。 When a promising model was completed
finally the inventor learned to his sorrow what every inventor
realises in time。 His fortune and the resources of others had
been poured down the sink of experiment。 To carry the idea from
the model to the practical stage required more money; and it was
not forthcoming。 The inventor sought to enlist the practical
sympathy of his country; only to learn that in Germany; as in
other lands; the axiom concerning the prophet; honour; and
country prevails。 No exuberant inventor received such a cold
douche from a Government as did Count Zeppelin from the Prussian
authorities。 For two years further work was brought practically
to a standstill: nothing could be done unless the sinews of war
were forthcoming。 His friends; who had assisted him financially
with his models; now concluded that their aid had been misplaced。
The inventor; though disappointed; was by no means cast down。 He
clung tenaciously to his pet scheme and to such effect that in
1896 a German Engineering Society advanced him some funds to
continue his researches。 This support sufficed to keep things
going for another two years; during which time a full…sized
vessel was built。 The grand idea began to crystallise rapidly;
with the result that when a public company was formed in 1898;
sufficient funds were rendered available to enable the first
craft to be constructed。 It aroused considerable attention; as
well it might; seeing that it eclipsed anything which had
previously been attempted in connection with dirigibles。 It was
no less than 420 feet in length; by 38 feet in diameter; and was
fitted with two cars; each of which carried a sixteen horse…power
motor driving independent propellers rigidly attached to the body
of the vessel。 The propellers were both vertical and horizontal;
for the purpose of driving the ship in the two planesvertical
and horizontal respectively。
The vessel was of great scientific interest; owing to the
ingenuity of its design and construction。 The metallic skeleton
was built up from aluminium and over this was stretched the
fabric of the envelope; care being observed to reduce skin
friction; as well as to achieve impermeability。 But it was the
internal arrangement of the gas…lifting balloons which provoked
the greatest concern。 The hull was divided into compartments;
each complete in itself; and each containing a small balloon
inflated with hydrogen。 It was sub…division as practised in
connection with vessels ploughing the water applied to aerial
craft; the purpose being somewhat the same。 As a ship of the
seas will keep afloat so long as a certain number of its
subdivisions remain watertight; so would the Zeppelin keep aloft
if a certain number of the gas compartments retained their
charges of hydrogen。 There were no fewer than seventeen of these
gas…balloons arranged in a single line within the envelope。
Beneath the hull and extending the full length of the latter was
a passage which not only served as a corridor for communication
between the cars; but also to receive a weight attached to a
cable worked by a winch。 By the movement of this weight the bow
or stem of the vessel could be tilted to assist ascent and
descent。
The construction of the vessel subsequently proved to be the
easiest and most straightforward part of the whole unde