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post #27 of Old 04-01-2009
sailingdog
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True, but you haven't sodablasted the hull, so the damage might actually be centered around the two fastener holes.... What is immediately visible is the shape of the block. Also, if the outer layer is matte, which is usually the case, the different directions could be due to the water wicking along the CSM strands.

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Originally Posted by brak View Post
I did think about that.

But if that is the case, I would expect damage to be radiating in circle from the holes, as water wicks pretty much evenly (or perhaps slightly more downward). Instead, it is specifically limited to exactly the area under the ground plate. Since distance from holes to middle of plate (or to vertcal edges) is more than distance to top and bottom edges, if damage would have radiated that way I'd expect the circle of damage to protrude up and down from the holes beyond the immediate ground plate square. It does not. Also there is more damage in some areas farther away from the holes (but still under the ground plate) than it is in their immediate vicinity.

The fact that it is so precisely limited to ground plate shape really seems to invalidate that theory (at least not by itself, may be as a contributing factor).

Sailingdog

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