Fig. 52.—Gyroscope, used for the control of the fore and aft horizontal rudders, thus keeping the machine on an even keel while in the air.
Fig. 53.—In order to adjust the lifting effect so that it was directly over the centre of gravity, and to test the action of my fore and aft horizontal rudders, I ran the machine along the steel rail i, i, and adjusted my weights and aeroplanes in such a manner that, when the machine was run at a speed of 30 miles an hour along the track, with the rudders adjusted in the manner shown, the front wheel j, was raised from the steel track and the small wheel m, brought into contact with the upper track h. When the rudder b, b, is in this position, it produces a strong lifting effect, while the rudder c, c, does not lift at all.
[Fig. 53 enlarged] (66 kB)
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Fig. 54.—This shows the rudders placed in such a position that b, b, does not lift at all, while c, is placed at such an angle as to produce a strong lifting effect, especially so as it is in the blast of the screws d, d. With the rudders in this position, and at a speed of 30 miles an hour, I was able to lift the rear wheels k, k, off the steel rails and to bring the small wheel l, in contact with the upper track h. These experiments showed that the machine could be tilted in either direction by changing the position of the rudder.
[Fig. 54 enlarged] (60 kb)
![[Fig. 54 enlarged]](#3839971358814751280_lg54.png.id-1866937409360167740.wrap-0.html.html){kind=link}