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post #19 of Old 12-30-2018
roverhi
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Re: Rigging spinnaker sheave

Don't reinvent the wheel. Drill and tap the plate into the masthead, been done that way since forever and works. Use caulk between the plate masthead to seal out moisture and any chance of corrosion. SS spinnaker cranes with welded loop eyes sticking out horizontally usually end up bending from the downforce. A flat plate with reinforcing ridge welded to the plate and 'U' bolts for block should prevent this. Here's cast one that has the reinforcing ribs. Z-Spar Masthead Spinnaker Bails
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