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← HistoryWhich navigational error increased substantially for 18th-century ships during extended voyages exceeding chronometer's designed lifespan?
A)Longitudinal error due to rate drift✓
B)Latitudinal error due to magnetic variation
C)Course error due to compass failure
D)Sighting error due to instrument wear
💡 Explanation
When chronometers aged significantly during extended voyages, their internal mechanisms experienced increased friction and wear leading to accumulated time errors, called rate drift, which affects longitude the most. Therefore longitudinal error increased, rather than other errors due to magnetic field, mechanical failure, or handling issues.
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