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He could raise or lower the craft by moving the rear rudder up and down; he could steer right or left by moving the vertical rudder. He had no ailerons nor wing-warping mechanism, but for lateral balance depended on the dihedral angle of the wings and upon suitable movements of his weight or of the vertical rudder.
But there was no water radiator, the engine being an up-to-date rotating one, and cooling in the air. The use of the wing-warping devices, by which the alerons, or wing-tips are "warped" to allow for "banking" in going around a curve, were also explained to Dick by means of the levers controlling them.
It was very cold. His hands were almost numb on the control. He descended to a thousand feet, but the machine jerked like a canoe shooting rapids, in the gust that swept up from among the hills. The landscape rose swiftly at him over the ends of the wings, now on one side, now on the other, as the machine rolled. His arms were tired with the quick, incessant wing-warping. He rose again.
At the same time it was realised that there was a definite relation between lateral balance and directional control, and the rudder controls and wing-warping wires were accordingly connected This ended the pioneer gliding experiments of Wilbur and Orville Wright though further glides were made in subsequent years as the following year, 1903, saw the first power-driven machine leave the ground.
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