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Flying a standard rate turn for 40 seconds changes the heading by

  • A.60 degrees
  • B.120 degrees
  • C.90 degrees
  • D.180 degrees

Answer: B

Correct answer: 120 degrees

At the standard rate of 3 degrees per second:

\[ 3 \times 40 = 120^\circ \]

The arithmetic is the basis of the timed turn, which is the procedure when the directional gyro or the compass has failed: hold a standard rate turn on the turn indicator for the calculated time and the heading change follows, without any heading reference at all.

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