A

g

Somthing like the chainplates are very high stress and need lots of reinforcing.
A good design hopefully eliminates areas of high stress and need for extra strength in construction.
Note there are no chainplates req on Harry.

--------------------------------------------
On Tue, 19/6/18, oysteinchina@yahoo.com [harryproa] <harryproa@yahoogroups.com.au> wrote:

Subject: [harryproa] Re:: Hard Points in foam sandwich panels
To: harryproa@yahoogroups.com.au
Received: Tuesday, 19 June, 2018, 4:40 PM


 









Higher density PVC foam is available, like
200kg/m3 or higher used by commercial builders as backing
plates. when combined with correct glass fiber / epoxy
layers to ensure stiffness. Steel washers of appropriate
size is also required.
Oystein










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