Please then, by all means expound. How much compression is imparted into the panel with a typical RC&S design you are working with when down bearing is applied so as to take the board to with in 75 % of flat... i.e. leaving 25 % of original crown. Take a panel dried to 6.5 %... specify the rib radii for a three or four areas of the panel. How do you calculate the degree of compression created ? This is a point I think many of us would benefit from. Cheers RicB Yes I has and it depends on where you start. David Love I think the point being raised boiled basically down to the degree of compression an RC & S board experiences when string bearing leaves whatever residual crown ends up being the case. I'm not sure thats been quantified by anyone yet... so it might be a nice thing for someone to throw into the mix. Leaving 25 % or original crown strikes me as introducing fairly significant amounts of compression into the panel.
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