The Soundboard bit.. RC&S

[Calin Tantareanu]

Hi Ron!

If I understand the RC&S method correctly, the panel is not used to support
the crown, which is suppoted entirely by the curved ribs. So, the panel is
just curved over the ribs, I don't see how it can provide an opposing force
to the string downbearing. If the panel does provide any force, then it
would be one (however small) that tends to flatten it out again, because it
was initially bent into a curve by the ribs.
If anything provides downbearing resistance in a RC&S soundboard, it must be
the ribs only, and the panel is just left to move the air. Or am I missing
anything?

Calin Tantareanu
http://calin.haos.ro
--------------------

> -----Original Message-----
> From: pianotech-bounces at ptg.org 
> [mailto:pianotech-bounces at ptg.org] On Behalf Of Ron Nossaman
> Sent: sâmbătă, 9 decembrie 2006 20:51
> To: ed440 at mindspring.com; Pianotech List
> Subject: Re: The Soundboard bit.. RC&S
> 
> 
> 
> To provide an opposing spring for the string downbearing, just 
> like with RC and CC boards. The difference is that the crown 
> support comes pretty much entirely from the ribs in the RC&S 
> boards, and either partially or entirely from the panel in RC 
> and CC boards (respectively).
> 
> Ron N