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← HistoryWhich consequence prevailed among Viking longships when sailcloth porosity increased due to persistent seawater exposure?
A)Maximum hull speed decreased slightly✓
B)Weather helm angle would markedly lessen
C)Yaw instability grows during tacking
D)Mast bending moment amplified considerably
💡 Explanation
Increased porosity raises air permeability, undermining performance; because pressure differential across the sail lessens therefore maximum propulsive force reduces; rather than the others, weather helm, yaw, and moments concentrate elsewhere.
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