In the Rutan planes, one buried an aluminum anodized plate of sufficient size to distribute the loads.

On June 17, 2018 6:12:46 PM UTC, "StoneTool owly@ttc-cmc.net [harryproa]" <harryproa@yahoogroups.com.au> wrote:
|     Every boat requires some if not quite a few "hard points" where
|something bolts through.  Obviously the core must be something other
|than foam here, and more layers of glass must be used to spread the
|load
|over a large area.   A dense wood would work well, but would present
|rod
|opportunities.   What's the best material to replace foam where there
|is
|compression load combined with jerking and tugging, such as where an
|anchor or drogue, or even dock lines must connect?
|
|
|         H.W.