[Public-List] Bulkheads

[Gordon Laco via Public-List]

We put bronze bushings in the delrin sheaves of ship and classic yacht blocks specifically to increase the effective bearing surface of the sheave pins.  Seems like bushings on the chain plate bolts are a good idea for the same reason.  

I did the same sort of thing for my Folkboats wooden mast... I inlaid white oak in the Sitka spruce where the shroud tang bolts were... My hope was that the harder wood might prevent the bolts from pulling down through the softwood when under extreme loads.  

They did anyway when the boat was fighting for her life in the hurricane.  I found the bolts holes were like long slits when I got the broken mast back with the wreck. 

Well it's all repaired now...  

Gord 426 Surprise 

On 2016-02-02, at 9:44 PM, Michael Connolly via Public-List <public-list at lists.alberg30.org> wrote:

> Thanks to all who responded to my request.  There is one question still unanswered. Has anyone used bushings around the chain plate bolts to increase the bearing surface area of the bolts as they pass through the plywood bulkhead? Thoughts about making an even larger hole in the plywood. 
> Michael #133 
> . 
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