The machine from elevator to tail plane bristles in original
points. The hump in the ribs has been cut away entirely, so
that although the plane is double surfaced, the surfaces are
closest together at a point which approximates the center of
pressure. The plane is practically of two stream-line forms,
of which one is the continuation of the other. This construction,
claims the inventor, will give increased lift, and decreased
head resistance. The trials substantiate this, as the angle of
incidence in flying is only about one in twenty-six.
The ribs in the main planes are made of strips of silver spruce
one-half by one-half inch, while those in the ailerons are solid
and one-fourth inch thick. In the main planes the fabric is
held down with thin wooden fillets. Cody's planes are noted
for their neatness, rigidity and smoothness. Pegamoid fabric
is used throughout.
Pressey Automatic Control.
Another ingenious system of automatic control has been
perfected by Dr. J. B. Pressey, of Newport News, Va. The
aeroplane is equipped with a manually operated, vertical rudder,
(3), at the stern, and a horizontal, manually operated,
front control, (4), in front. At the ends of the main plane, and
about midway between the upper and lower sections thereof,
there are supplemental planes, (5).
Pages:
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227