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in article , Frederick Burroughs at
wrote on 6/19/05 9:47 AM:

Brian wrote:

Waxing the boat will make it go slower as the wax will repel the thin
layer of water called "Laminar layer". Laminar flow must be maintained
for the layer to make proper contact along the hull to form a so called
slip stream. Only way to do this is to compound or wet sand the hull to
make the laminar layer stick to the hull surface.

But, if you sand too coursely don't you create turbulances that
increase drag? Why are surfboards waxed?

Aaaaaa! Stop! Stop! ROFL