SC50 has aluminum chainplates which over time began reacting with the
carbon deck. We pulled the chainplates out and replaced one that had
been eaten up pretty badly.
if the visible areas of the chainplate appear intact, there could still
be significant damage where it traverses the deck.
pitting where the carbon and moisture in the deck touched the aluminum.
used g10 to core the deck across the entire
chainplate area to keep the carbon away from the aluminum and any
moisture away from the balsa core.
also replaced the aluminum beauty plates above decks with g10, which we
glued to the deck to further stiffen up the area.
also had to repair the headstay area and tie-rod system in the bow
which was also fizzing.
deck damage below the headstay fitting and tack fitting inside the
boat. The balsa core was sopping wet for several inches going aft.
then buit a special cored section combining corecell foam and g10 to
replace the rotten balsa core.