[Public-List] corroded rudder

George Dinwiddie gdinwiddie at alberg30.org
Tue Mar 16 12:08:08 PDT 2021


Stephen,

On 3/15/21 12:17 PM, Stephen Gwyn via Public-List wrote:
> Michael Connolly:
> So if the diameter of the shaft was originally 1", and it's only 0.6" 
> now, then the cross section is 0.6 squared = 0.36 of
> the original, hence my figure of 36%. If instead the original diameter 
> was only 3/4" inches, then the remaining strength is
> (.6/.75)^2  = 64%, still not great, but much more acceptable. However 
> all the bits of brass I can see are 1", which
> is also the diameter specified here:
> http://www.alberg30.org/maintenance/Steering/RudderPost/rudderstock.png

That page shows the upper post that attaches to the tiller.
Note the piece in the lower left corner of the second page, 
http://www.alberg30.org/maintenance/Steering/RudderPost/RudderReinforcment.png

  - George

-- 
  ----------------------------------------------------------------------
   When I remember bygone days                         George Dinwiddie
   I think how evening follows morn;            gdinwiddie at alberg30.org
   So many I loved were not yet dead,           http://www.Alberg30.org
   So many I love were not yet born.                          also see:
                'The Middle' by Ogden Nash     http://idiacomputing.com
  ----------------------------------------------------------------------






More information about the Public-List mailing list