More on soundboard crown

[Ron Nossaman]

>Ron,
>
>One additional comment on this.  This is an interesting idea.  If you made 
>the ribs deep enough in the middle, with the feathering at the ends, then 
>the line of centroids of the cross sections actually would be defining a 
>suspension cable sort of arc.  Perhaps you could get some additional 
>support or stiffness from this in addition to the bending stiffness of the 
>deeper rib.
>
>Phil Ford

Maybe so, since it's not limited to the difference across the curve 
compared to the chord, like an arch.

Ron N