...On Oct 26, 2015, at 4:39 AM, Rob Denney harryproa@gmail.com [harryproa] <harryproa@yahoogroups.com.au> wrote:
…The exception to this is wing masts, where wall thickness stops the unsupported sides buckling. A better solution is foam (lighter) and better again is a sheer web, although these are quite hard to incorporate.
Arrgh - it’s *shear*, dammit!
The leeward hull lines of the Cruiser 50 feature a reverse *sheer*. The center web of the I-beam failed due to excessive *shear*.
It’s also a spar, not a spare, unless you have a spare spar.
I’ll be starting on grammar next ;-)
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Posted by: Michael Gehl <mike@vail.net>
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