N.A.C.A. Technical Memorandum No. 802- Pigs. 10,12 Figure 10. - Effect of the earth's rotation on a gyroscope. » N … S S Figure 12. - Centrifugal effect on the magnetic needle. Outer arrow indicates direction of turning of the airplane. Centrifugal force exerted on south end of needle during a turn: (1) When the airplane faces north. (2) When the airplane faces south. (3) When the airplane faces east. (4) When…
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