[Public-List] Mast Beam on #116

[Rachel]

On Mar 29, 2008, at 10:46 AM, Michael Connolly wrote:
>  What I have found is that the beam collapses more in the center, 
> i.e., flattens rather than the entire beam lowering toward the sole. 
> Thus the knee brackets at the door jamb really don't help that much to 
> correct the loose rig situation caused by the beam flattening near the 
> center of the arch, directly beneath the mast step.

I guess that explains why the sistered aluminum plates work well, as 
they make something of an I-beam of the arch.  That is, instead of 
shoring up the vertical members that are already in place at the sides.
>
>
R.


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