When sufficient
speed had been attained both planes are
turned to the same angle, as in position 2, and
flight is initiated without the abnormal oscillating
motion of the body.
But now let us see what takes place the moment
the present type is launched. If, by any error on
the part of the aviator, he should fail to readjust
the tail to a neutral or to a proper angle of incidence,
after leaving the ground, the machine would
try to perform an over-head loop.
The suggested plan does not require this caution.
The machine may rise too rapidly, or its
planes may be at too great an angle for the power
or the speed, or the planes may be at too small an
angle, but in either case, neglect would not turn
the machine to a dangerous position.
These suggestions are offered to the novice, because
they go to the very foundation of a correct
understanding of the principles involved in the
building and in the manipulation of flying machines
and while they are counter to the beliefs of
aviators, as is shown by the persistency in adhering
to the old methods, are believed to be mechanically
correct, and worthy of consideration.
THE LOW CENTER OF GRAVITY.--But we have still
to examine another feature which shows the wrong
principle in the fixed planes. The question is
often asked, why do the builders of aeroplanes
place most of the weight up close to the planes?
It must be obvious to the novice that the lower
the weight the less liability of overturning.
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