June Journal and FW's

[Bill Ballard]

At 9:34 PM +0200 6/1/02, Richard Brekne wrote:
>>The wippen assist spring allows you to, in
>>effect, change the SBR from note to note by altering the wippen strike
>>weight.
>>
>
>????  dont follow you here Dave... The only way the ratio can really 
>be changed
>is by changing the length of one or more of the levers. .... or what ?

It's really a neat phenomenon. When you transfer the load balancing 
from the FWs to the WAS (and remove the now "unemployed" leads), SBR 
will seem to change, because all of a sudden the same SW can be 
counter-balanced with less FW. It's an illusion of course.

More to the point it's a similar effect as increasing the stiffness 
of the board by adding ribs. Instead of getting the extra stiffness 
by thickening the panel, you get the same increase of stiffness, 
without all the extra mass. Sort of like, if you wanted a NY Steinway 
hammer to sound our favorite premium brick hot pressed hammer, how 
much extra mass would you have to add. Well, if that mass was in the 
form of reinforcers like lacquer resins or plastic, not much.

I think its kind of neat.

Bill Ballard RPT
NH Chapter, P.T.G.

Visit Bhod Ankur, the underwater monument to yesterday's civilisation.
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