coring with an appropriate product, such as
the thickened resin epoxies by West Systems,
following product instructions. Hopefully,
when the hull was drilled originally, the
worker did it correctly and sealed the sides of
the hole with epoxy resin. There are a variety
of options for filling the hole itself. Start by
reading the tutorial on the West System website before deciding how to proceed.
More on PlacardS
John Adey answered a question on placards
and horsepower that, while correct, ignored
the advancements in outboards over the past
couple of years. On my 2008 Grady-White
the placard says weight and horsepower are
limited to that of a four-stroke 250-hp out-
board. Yet about a year or so after I bought
my boat, Yamaha introduced a new V6 300-
hp and Grady now offers my exact boat with
a 300-hp option. Their website now says my
boat has a 10-person capacity, when it was
eight people in 2008. Same boat, same hull,
but a lighter engine. So if I repower with an
F300, what does this mean in terms of the
placard on the boat? It seems the placard on
the boat can’t keep up with changes in out-
board technology. Bob Williams
John adey: Welcome to my world!
Your observation is right on and accurately
highlights the difference between federal
regulations and the standards of ABYC. So
let’s walk through this a bit:
1. Engine weight in boatbuilding is used
purely for capacity calculations and testing.
In the ABYC Standards, we require a capacity
plate on boats less than 26 feet, while the
federal regulations stop at less than 20 feet.
Boat size restrictions may apply. *Restrictions may apply. Ask your North Sails Direct representative for details.
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He cruises a
30-footer in the
books include Don
Maintenance Manual, and This Old
Boat, the DIY boaters’ bible.
President of ABYC,
and boatyard, and
owned a marine
supply store. He
sails a classic 1976 Irwin ketch, which
he completely restored.
He’s lived aboard
for most of his life,
can fix any system
aboard, has writ-
ten two books,
filmed DVDs on
East Coast cruising, and has won
awards for his tech writing.
Our tech editor
grew up powerboating, waterskiing, fishing; did two
wrote The Voyager’s Handbook and
hundreds of tech articles.
See this article online to find out
how to mount a transducer without
holes below the waterline.