MacDonald, Alexander Forsyth, 1897-1965 · Port Credit, Ont. : Aviation Service Corporation · leaf 43
y, if aforce is apphed to it, to turn about an axis at rightangles to the axis about which the force was applied.The following is a simple illustration: Imagine a bicyclewheel spinning rapidly on a broomhandle which isheld horizontally in your hands. Attempt to pusheither end forward and one end… … Fig. 57. Sperry Fig. }8. Sperry Directional Gyro. Artificial Horizon. The Directional Gyro The DIRECTIONAL GYRO is an instrument designedto indicate the Heading of the aircraft and to enablethe pilot to steer it. The basic mechanical principle revolves around aGyro Wheel or Rotor Mounted vertically…
Airplanes
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