[Alberg30] Toe Rail vs. Bulwarks

[George Dinwiddie]

And your purpose for doing this is???

The problem with reengineering anything is that you then have to 
reengineer other parts to match.  A common example of this is DC-powered 
refrigeration.  This requires bigger batteries.  This requires better 
charging.  This requires a bigger alternator.  This requires dual 
alternator belts.  This requires a more sophisticated mounting and 
tensioning arrangement...

As for your idea, you're moving from holes at the toe rails to holes at 
the bulwark mounting brackets.  The hull-deck joint is, by its shape, a 
very strong and rigid part of the boat.  The deck, being flat, does not 
have such rigidity.  Even on an older boat, I think you will have to 
rebuild the deck where you mount the brackets to increase the strength. 
  You're asking it to take a load it was never designed to take.  The 
deck will, if flexed from inboard by the brackets, act as a lever on the 
hull-deck joint.

In short, I'm sceptical that this is a good idea.  In any event, it's 
much too big a change to trust to a variety of untutored opinions on 
this list.  I *strongly* recommend hiring the services of a good naval 
architect before proceeding in this modification.

  - George


Gary Barker wrote:
> I am looking for input about replacement of toe rails.  Right now, I am 
> committed to removal, reinforcing and glassing the hull/deck joint and 
> using bulwarks.  But one question that i have concerns  what might 
> happen when the bulwarks get buried.  That is, will they have the 
> strength of the toe rail.  [snip]
> I am not as keen on attaching everything to the stantions, but I want to 
> have cast bronze mounting brackets that support the bulwark and are 
> through bolted.  Probably set every four feet or so.  [snip]
> Any input would be appreciated.
> 
> Thanks,
> Gary Barker
> #307 


-- 
  ----------------------------------------------------------------------
   Hope your road is a long one.                        George Dinwiddie
   May there be many summer mornings when,       gdinwiddie at alberg30.org
   with what pleasure, what joy,                 http://www.Alberg30.org
   you enter harbors you're seeing for the first time;
                                            from 'Ithaka' by C.P. Cavafy
  ----------------------------------------------------------------------

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