Question

[Farrell]

Oops, sorry. MC = wood moisture content - degree to which the panel is 
dried - 6.5 to 6.0% for RC&S up to 4% (if I remember correctly) for CC.

Terry Farrell

----- Original Message ----- 
> MC=?
>
> -----Original Message-----
> From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On 
> Behalf
> Of Farrell
> Sent: Thursday, March 30, 2006 12:12 PM
> To: Pianotech List
> Subject: Re: Question
>
> Rib Crowned and Supported - ribs shaped to relatively small radii, board
> ribbed at relatively high MC, panel under little compression and has no
> significant crown-supporting function.
>
> Rib Crowned - ribs shaped to relatively large radius (commonly 60-foot),
> board ribbed at moderate to low MC, panel compression in part supports
> crown.
>
> Rib crowned is a bit of a hybrid - somewhere between CC and RC&S. There
> really is a continuum between the two extremes of CC and RC&S.
>
> Terry Farrell
>
> ----- Original Message ----- 
>> now how is Rib Crowned different from Rib Crowned and Supported?
>>
>> thanks
>>
>> Mike
>
>