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A slaved gyro compass differs from a simple directional gyro in that it

  • A.Uses two rotors instead of one
  • B.Indicates true rather than magnetic heading
  • C.Is continuously corrected by a remote magnetic sensing element
  • D.Requires no electrical power

Answer: C

A flux valve in a wingtip or fin senses the earth's field away from cabin disturbances and a slaving torque motor holds the gyro to it. The result combines the compass's north-seeking property with the gyro's steadiness in turns.

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