> >I suppose someone is wondering what height of the arc would be across > >a segment (chord) of 36 inches with 72 inch radius.... 2.863. I >> At 24 inches it is almost exactly 1 inch. ---ric > > > Making that a 72 foot radius instead of 72 inches might make some > difference in the rise too. > > Ron N 3/16 " at 72 foot radius (span of 36 inches) ....need a *12 in that formula. ---ric
This PTG archive page provided courtesy of Moy Piano Service, LLC