Which navigational error increases when a tall ship relies solely on dead reckoning across ocean currents?

💡 Explanation

When tall ships estimate their position by dead reckoning amidst ocean currents, the accumulative drift occurs because set (current direction) and leeway (sideways slip) errors compound over time without external fixes. Therefore accumulative drift predominates, rather than altitude, time, or instrument deviation errors which require entirely separate causal factors.

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