The excerpt represents the core issue or deciding factor on which you must meditate, and is drawn from Aeroplanes and Dirigibles of War by Frederick A. Talbot: the ground at the utmost is gently undulating, and where there
are roads on which four-wheeled vehicles can travel.
For operation in hilly districts, where only trails are to be
found, the Marconi Company, has perfected what may be described
as "pack" and "knapsack" installations respectively. In the
first named the whole of the installation is mounted upon the
backs of four horses. The first carries the generator set, the
second the transmitting instruments, the third the receiving
equipment, and the fourth the detachable mast and stays.
The generator is carried upon the horse's saddle, and is fitted
with a pair of legs on each side. On one side of the saddle is
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