Crown radius = how much arch in a segment ?

[Garold Beyer]

h=r-the square root of (r squared-(c/2 squared)
h=height of arc, r= the radius in inches, c= chord length
----- Original Message ----- 
From: "Richard Moody" <remoody@midstatesd.net>
To: "Pianotech" <pianotech@ptg.org>
Sent: Monday, March 12, 2001 11:34 PM
Subject: Re: Crown radius = how much arch in a segment ? 


> Thanks,
>     I don't mind paying a few bucks for the reprint if I can
> still get if from the office since it does go to a good cause.
> Actually all I am looking for a formula which I
> would like to try in a spread sheet. ---ric
> 
> ----- Original Message -----
> From: <Yardarm103669107@AOL.COM>
> To: <pianotech@ptg.org>
> Sent: Monday, March 12, 2001 11:28 AM
> Subject: Re: Crown radius = how much arch in a segment ?
> 
> 
> Nick Gravagne has a neat graphical method for figuring this out, and I
> think
> it's in journal from a several years back. If you can't find it, let
> me know,
> PR-J
> 
>