action ratios

[Richard Brekne]

So I understand this to say that a piano with a 5.3 ratio will necessarily have
insufficient jack escapment at 10 mm dip and 44 mm blow ?... just trying to get
to what all this boils down to.

RicB

David Love wrote:

> Not enough dip, no aftertouch, insufficient jack escapement.  Lower ratios
> will require more dip or less blow.
>
> David Love
>
> I was more curious about the connection you make between "bobbling" and the
> Ratio. What exactly was causing the bobbling in your determination ?
>
> RicB
>
> >
> >>The piano I mentioned above which had a ratio of 5.3 and high zone SW's was
>
> > regulated at 10mm dip/44 mm blow.It was bobbling all over the place.  The
> dip required to solve the
> >problem was not acceptable to the pianist.



--
Richard Brekne
RPT, N.P.T.F.
UiB, Bergen, Norway
mailto:rbrekne@broadpark.no
http://home.broadpark.no/~rbrekne/ricmain.html