----- Original Message ----- From: "David Love" <davidlovepianos@earthlink.net> To: "Pianotech" <pianotech@ptg.org> Sent: May 07, 2003 9:32 PM Subject: Re: Unusual rib structure? > I noticed, the other day, on a Hamburg Steinway C, that the cutoff bar was > notched to allow for the feathered part of the rib to extend beyond it to > the rim. Is this counterproductive? Generally, with cutoff bars do the > ribs terminate at the cutoff bar? > > David Love > davidlovepianos@earthlink.net > If you leave a substantial portion of a spruce panel unsupported it will buckle and probably crack. Assuming the soundboard cutoff is truly a cutoff then the extended portion of the rib is simply there to keep the excess panel from self-destructing. Del
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