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← HistoryWhich risk significantly increased due to the practice of 'topping' masts during 18th-century ship construction?
A)Increased torsional stress on keel
B)Reduced weather helm compensation
C)Enhanced structural resonance during storms
D)Elevated center of gravity instability✓
💡 Explanation
When 'topping' masts (raking them backward), the elevated sail area shifted the center of effort upwards, increasing instability because a higher center of gravity reduces the restoring moment. Therefore elevated center of gravity creates an safety imbalance, rather than keel stress, helm issues, not resonance; those required distinctly from different mechanical origins.
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