Irwin 30 - Page 2 - SailNet Community
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post #11 of 12 Old 05-20-2002
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Irwin 30

With all due respect, moving the chainplates to the hull on an Irwin 30 is extremely bad advice.

-First of all it is a major project to build up enough hull thickness to take the localized loadings of the chainplate bolts. a bulkhead repair is simple by comparison.
-Moving the chainplates outboard will absolutely kill windward performance of the boat. Adding even a couple degrees of incident angle at the middle of the genoa really alters pointing ability significantly. The outboard shroud placement of many older boats is often the single factor limiting thier pointing ability.

-You will need longer spreaders and shrouds, (and perhaps a new genoa) the cost of these first two items combined far exceed the cost of the bulkhead repair.

-And lastly, you''ll kill the value of the boat for any knowledgeable sailor and restrict its resale to someone who knows so little about sailing that they won''t realize how much the sailing performance of the boat has been compromised by the relocated shrouds.

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post #12 of 12 Old 06-09-2002
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Irwin 30

jeff, just saw your comments - thx. noticed "blackening" of wood bulkhead, only behind port chainplate in cabin. discolorization extends about 1/4" from edge of chainplate. the rest of the bulkhead is fine. hsve been keeping fresh caulk on deck and havent had any further discolorization in last 3 years. i keep the stays under recommended tension (heavy and checked often with gauge) and chainplate has never pulled up in the slightest fraction. however, it''s un-nerving just looking at discolorization and knowing that water did get behind it at one time. any thoughts on how to reinforce the load for piece of mind as i usually sail in 15 - 25 knot winds on San Fran bay and usually with more sail then i should.
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