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Nature & Animals

Which outcome occurs under thermal updraft conditions when contour feathers fail to properly overlap during albatross soaring?

A)Reduced induced drag efficiency
B)Enhanced laminar flow attachment
C)Increased boundary layer thickness
D)Minimized adverse pressure gradients

💡 Explanation

Increased feather separation causes premature turbulent transition. The boundary layer transition shifts forward because increased surface roughness promotes earlier destabilization, therefore thickening the overall layer, rather than creating lift improvements.

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