Radio Navigationeasy#1189
Earth rate correction in an INS compensates for:
A
Variation between magnetic and true north
B
Wind effects on ground speed
C
Coriolis effect on the aircraft
D
The apparent drift of gyroscopes due to Earth's rotation (15 degrees/hour)
CorrectExplanation
Earth rate correction compensates for the apparent drift of 15 degrees per hour caused by Earth's rotation, which would otherwise cause position errors.
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